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WO2020054063A1 - Synthetic gas production system for low-carbon ft synthetic oil production - Google Patents

Synthetic gas production system for low-carbon ft synthetic oil production Download PDF

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WO2020054063A1
WO2020054063A1 PCT/JP2018/034235 JP2018034235W WO2020054063A1 WO 2020054063 A1 WO2020054063 A1 WO 2020054063A1 JP 2018034235 W JP2018034235 W JP 2018034235W WO 2020054063 A1 WO2020054063 A1 WO 2020054063A1
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gas
hydrogen
carbon monoxide
biomass
derived
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伊藤 信三
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EUREKA ENGINEERING Inc
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EUREKA ENGINEERING Inc
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Priority to PCT/JP2018/034235 priority Critical patent/WO2020054063A1/en
Priority to PCT/JP2018/043875 priority patent/WO2020054088A1/en
Priority to JP2019520174A priority patent/JP6552030B1/en
Priority to PCT/JP2019/020969 priority patent/WO2020054138A1/en
Publication of WO2020054063A1 publication Critical patent/WO2020054063A1/en
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K3/00Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide

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  • the present invention relates to a system for producing a synthesis gas suitable for producing a low carbon FT synthetic oil.
  • Patent Literature 1 discloses that saccharification of biomass is performed to generate a saccharified liquid, saccharified liquid is subjected to methane fermentation treatment to generate methane fermentation biogas, and a steam reforming method, a partial oxidation method, and the like are used from the methane fermentation biogas. It is described that a synthetic gas containing hydrogen and carbon monoxide as main components is generated using FT, and the synthetic gas is subjected to FT synthesis processing to generate an FT synthetic oil.
  • a synthesis gas containing hydrogen and carbon monoxide as main components is generated from a methane fermentation biogas using a steam reforming method, a partial oxidation method, or the like. It does not mention controlling the molar ratio of hydrogen to carbon monoxide to the target value.
  • the present invention provides a synthesis gas production system for producing low-carbon FT synthetic oil, which can easily produce a synthesis gas having a target value of a molar ratio of hydrogen to carbon monoxide from a gasification gas containing at least a biomass-derived gasification gas.
  • the purpose is to do.
  • the present invention provides a gasification gas supply device that supplies a gasification gas containing at least a biomass-derived gasification gas, and a hydrogen separation device that separates the gasification gas containing at least the biomass-derived gasification gas into hydrogen and a first off-gas. And a carbon monoxide separator that separates the first offgas into carbon monoxide and a second offgas; and hydrogen separated by the hydrogen separator and carbon monoxide separated by the carbon monoxide separator.
  • a syngas production system for producing low-carbon FT synthetic oil comprising: a blending device that blends hydrogen to carbon monoxide such that the molar ratio of hydrogen to a target value becomes a synthesis gas.
  • a synthesis gas production system 1 for producing low-carbon FT synthetic oil includes a biomass-derived gasified gas supply device 10, a hydrogen separation device 20, , A carbon monoxide separating device 30 and a blending device 40.
  • the biomass-derived gasification gas supply device 10 includes a gasification furnace for generating gasification gas and a purification device for purifying the generated gasification gas.
  • a gasification furnace for generating gasification gas
  • a purification device for purifying the generated gasification gas.
  • biomass preferably woody biomass, such as thinned wood, waste wood, rice straw, straw, rice husk, corn, etc.
  • the gasifier When supplied with biomass, preferably woody biomass, such as thinned wood, waste wood, rice straw, straw, rice husk, corn, etc., as a fuel, the gasifier generates a 100% biomass-derived gasified gas. I do.
  • the gasification furnace when a mixture of biomass and coal is supplied as a mixed fuel, the gasification furnace generates a gasified gas derived from the mixed fuel in which the biomass-derived gasified gas and the coal-derived gasified gas are mixed.
  • the gasification furnace when the gasification furnace is supplied with a mixture of biomass and waste plastics (not including vinyl chloride) as a mixed fuel, the gasification furnace is derived from a mixed fuel derived from a mixture of biomass-derived gasification gas and waste plastic-derived gasification gas. Generate gasification gas.
  • the gasification furnace generates a gasification gas including at least the biomass-derived gasification gas.
  • the biomass-derived gasification gas supply device 10 purifies the gasification gas containing at least the biomass-derived gasification gas generated in the gasification furnace by the purification device and supplies the gasification gas to the hydrogen separation device 20.
  • the biomass-derived gasification gas supply device 10 uses the biomass-derived gasification gas. May be a gas holder for storing and supplying the hydrogen to the hydrogen separation device 20.
  • the hydrogen separation device 20 is connected to the biomass-derived gasification gas supply device 10 and separates the supplied gasification gas containing at least the biomass-derived gasification gas into hydrogen and off-gas (first off-gas).
  • the hydrogen separation device 20 may use a known pressure fluctuation adsorption method (PSA: Pressure Swing Adsorption), a hydrogen separation polymer membrane, or a hydrogen separation metal membrane.
  • PSA Pressure Swing Adsorption
  • the carbon monoxide separator 30 is connected to the hydrogen separator 20 and separates the supplied first off-gas into carbon monoxide and off-gas (second off-gas).
  • the carbon monoxide separation device 30 may use a known pressure fluctuation adsorption method (PSA), a carbon monoxide separation polymer membrane, or a carbon monoxide separation metal membrane.
  • PSA pressure fluctuation adsorption method
  • the preparation device 40 is connected to the hydrogen separation device 20 and the carbon monoxide separation device 30, and has the same temperature as the capacity of the hydrogen supplied from the hydrogen separation device 20 and the carbon monoxide supplied from the carbon monoxide separation device 30. These are measured at the same pressure, and are adjusted so that the capacity of hydrogen with respect to the capacity of carbon monoxide becomes a target value. As a result, the hydrogen separated by the hydrogen separation device 20 and the carbon monoxide separated by the carbon monoxide separation device 30 are prepared so that the molar ratio of hydrogen to carbon monoxide becomes a target value and becomes a synthesis gas. .
  • the offgas utilization device 2 is connected to the carbon monoxide separation device 30, and uses the second offgas supplied from the carbon monoxide gas separation device 30 as fuel.
  • the off-gas utilization device 2 is a boiler combustion furnace or the like.
  • the FT synthetic oil production device 3 is connected to the blending device 40, which is the final stage of the low-carbon FT synthetic oil production synthesis gas production system 1, and the FT synthetic oil production device 3 converts hydrogen to carbon monoxide supplied thereto.
  • a desired FT synthetic oil liquid hydrocarbon
  • the FT synthetic oil production apparatus 3 is known, and a synthesis gas having an adjusted composition (H 2 / CO molar ratio) is introduced into a reactor filled with various catalysts to perform a synthesis reaction represented by the formula (1).
  • FT synthetic oil liquid hydrocarbon
  • the biomass-derived gasification gas supply device 10 supplies a gasification gas containing at least the biomass-derived gasification gas to the hydrogen separation device 20.
  • the hydrogen separator 20 separates the supplied gasified gas containing at least the biomass-derived gasified gas into hydrogen and a first off-gas, and supplies the first off-gas to the carbon monoxide separator 30 and the hydrogen to the blender 40.
  • the carbon monoxide separator 30 separates the supplied first off-gas into carbon monoxide and a second off-gas, and supplies the carbon monoxide to the blender 40.
  • the blending device 40 blends the supplied hydrogen and carbon monoxide such that the molar ratio of hydrogen to carbon monoxide becomes a target value, and makes a synthesis gas suitable for producing a low-carbon FT synthetic oil.
  • the FT synthetic oil producing device 3 generates FT synthetic oil from the synthetic gas supplied from the low-carbon FT synthetic oil producing synthetic gas production system 1.
  • the offgas utilization device 2 uses the combustion heat by burning the supplied second offgas. Thereby, the gasification gas containing at least the biomass-derived gasification gas can be effectively used.
  • the synthesis gas production system 1 for producing a low-carbon FT synthetic oil According to the synthesis gas production system 1 for producing a low-carbon FT synthetic oil according to the first embodiment, at least hydrogen and carbon monoxide contained in the gasification gas containing the biomass-derived gasification gas are used. Since it is only necessary to separate each of them and adjust the molar ratio of hydrogen to carbon monoxide to a target value, it is possible to easily and inexpensively produce a synthesis gas suitable for producing a low-carbon FT synthetic oil. it can.
  • the second and third embodiments are systems capable of producing a synthesis gas capable of improving the yield of FT synthetic oil as compared with the first embodiment. 4. Configuration of Second Embodiment
  • the second embodiment differs from the first embodiment only in that a hydrogen supply device 50 is connected to a blending device 40 as shown in FIG. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • a hydrogen supply device 50 that supplies hydrogen is connected to the preparation device 40.
  • the hydrogen supplied from the hydrogen supply device 50 may be a mixture of one or more of soda electrolytic hydrogen, water electrolytic hydrogen, natural gas reformed hydrogen, biogas reformed hydrogen, and imported CO 2 -free hydrogen.
  • the mixing device 40 is configured to target the hydrogen separated by the hydrogen separation device 20 and the hydrogen supplied from the hydrogen supply device 50 and the carbon monoxide separated by the carbon monoxide separation device 30 so that the molar ratio of hydrogen to carbon monoxide is equal to the target. It is prepared to a value to obtain a synthesis gas.
  • a mixing device 60 is interposed between a biomass-derived gasified gas supply device 10 and a hydrogen separation device 20, and the mixing device 60
  • the by-product gas supply device 70 is connected, and the biomass-derived gasified gas and the mixed gas are mixed by the mixing device 60. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • the mixing device 60 is supplied with the gasification gas including at least the biomass-derived gasification gas from the biomass-derived gasification gas supply device 10 and is composed of at least one of the coke oven gas and the refinery gas from the by-product gas supply device 70.
  • a by-product gas is supplied, and the biomass-derived gasification gas and the by-product gas are mixed to generate a mixed gas.
  • Coke oven gas is a carbonization gas generated during coke production and is hydrogen-rich.
  • Refinery gas is an off-gas generated in the crude oil refining process and is hydrogen-rich.
  • the mixed gas is sent from the mixing device 60 to the hydrogen separation device 20 and is separated into hydrogen and a first off-gas.
  • a gas mixture of gasified gas containing biomass-derived gasified gas and hydrogen-rich by-product gas has a high hydrogen content, and the production yield of synthetic gas suitable for producing low-carbon FT synthetic oil is improved. Can be improved.

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Abstract

This synthetic gas production system for low-carbon FT synthetic oil production is provided with: a biomass-derived gasified gas supply device which supplies a gasified gas that contains at least a biomass-derived gasified gas; a hydrogen separation device which separates the aforementioned gasified gas that contains at least a biomass-derived gasified gas into hydrogen and a first off-gas; a carbon monoxide separation device which separates the first off gas into carbon monoxide and a second off gas; and a mixing device which obtains a synthetic gas by mixing the hydrogen separated in the hydrogen separation device and the carbon monoxide separated in the carbon monoxide separation device such that the molar ratio of hydrogen to carbon monoxide is a target value.

Description

低炭素FT合成油製造用合成ガス製造システムSynthetic gas production system for low carbon FT synthetic oil production

 本発明は、低炭素FT合成油を製造するのに適した合成ガスを製造するシステムに関する。 The present invention relates to a system for producing a synthesis gas suitable for producing a low carbon FT synthetic oil.

 地球温暖化問題は深刻度を増しており、二酸化炭素排出の削減が強く求められ、自動車、飛行機等において石油系燃料の使用を制限する動きもある。このような背景からバイオマスの液体燃料化(BTL:Biomas To Liquid)が求められている。BTLは水素と一酸化炭素を適正な比率で反応させる必要があるので、水素の一酸化炭素に対するモル比(H/CO)が目標値である合成ガスを容易に生成する方法が求められている。
 特許文献1には、バイオマスを糖化処理して糖化液を生成し、この糖化液をメタン発酵処理してメタン発酵バイオガスを生成し、このメタン発酵バイオガスから水蒸気改質法や部分酸化法等を用いて水素と一酸化炭素を主成分とする合成ガスを生成し、この合成ガスをFT合成処理してFT合成油を生成することが記載されている。
The problem of global warming is increasing in severity, and there is a strong demand for reduction of carbon dioxide emissions, and there is a movement to restrict the use of petroleum fuels in automobiles, airplanes and the like. From such a background, the conversion of biomass into liquid fuel (BTL: Biomass To Liquid) has been demanded. Since BTL needs to react hydrogen and carbon monoxide at an appropriate ratio, a method for easily generating a synthesis gas having a target value of a molar ratio of hydrogen to carbon monoxide (H 2 / CO) is required. I have.
Patent Literature 1 discloses that saccharification of biomass is performed to generate a saccharified liquid, saccharified liquid is subjected to methane fermentation treatment to generate methane fermentation biogas, and a steam reforming method, a partial oxidation method, and the like are used from the methane fermentation biogas. It is described that a synthetic gas containing hydrogen and carbon monoxide as main components is generated using FT, and the synthetic gas is subjected to FT synthesis processing to generate an FT synthetic oil.

国際公開第2015/174518号WO 2015/174518

 特許文献1に記載された方法では、メタン発酵バイオガスから水蒸気改質法や部分酸化法等を用いて水素と一酸化炭素を主成分とする合成ガスを生成しているが、どのようにして水素と一酸化炭素とのモル比を目標値にコントロールするかに言及していない。 In the method described in Patent Document 1, a synthesis gas containing hydrogen and carbon monoxide as main components is generated from a methane fermentation biogas using a steam reforming method, a partial oxidation method, or the like. It does not mention controlling the molar ratio of hydrogen to carbon monoxide to the target value.

 本発明は、少なくともバイオマス由来ガス化ガスを含むガス化ガスから水素の一酸化炭素に対するモル比が目標値である合成ガスを容易に製造可能な低炭素FT合成油製造用合成ガス製造システムを提供することを目的とする。 The present invention provides a synthesis gas production system for producing low-carbon FT synthetic oil, which can easily produce a synthesis gas having a target value of a molar ratio of hydrogen to carbon monoxide from a gasification gas containing at least a biomass-derived gasification gas. The purpose is to do.

 本発明は、少なくともバイオマス由来ガス化ガスを含むガス化ガスを供給するガス化ガス供給装置と、前記少なくともバイオマス由来ガス化ガスを含むガス化ガスを水素と第1オフガスとに分離する水素分離装置と、前記第1オフガスを一酸化炭素と第2オフガスとに分離する一酸化炭素分離装置と、前記水素分離装置で分離された水素と前記一酸化炭素分離装置で分離された一酸化炭素とを一酸化炭素に対する水素のモル比が目標値になるように調合して合成ガスにする調合装置と、を備える低炭素FT合成油製造用合成ガス製造システムである。 The present invention provides a gasification gas supply device that supplies a gasification gas containing at least a biomass-derived gasification gas, and a hydrogen separation device that separates the gasification gas containing at least the biomass-derived gasification gas into hydrogen and a first off-gas. And a carbon monoxide separator that separates the first offgas into carbon monoxide and a second offgas; and hydrogen separated by the hydrogen separator and carbon monoxide separated by the carbon monoxide separator. A syngas production system for producing low-carbon FT synthetic oil, comprising: a blending device that blends hydrogen to carbon monoxide such that the molar ratio of hydrogen to a target value becomes a synthesis gas.

 このような構成によると、少なくともバイオマス由来ガス化ガスを含むガス化ガスに含まれる水素と一酸化炭素を分離し、水素の一酸化炭素に対するモル比が目標値になるように調合するだけであるので、低炭素FT合成油を製造するのに適した合成ガスを容易かつ低コストで製造することができる。 According to such a configuration, only hydrogen and carbon monoxide contained in the gasification gas containing at least the biomass-derived gasification gas are separated, and only the hydrogen is prepared so that the molar ratio to carbon monoxide becomes the target value. Therefore, it is possible to easily and inexpensively produce a synthesis gas suitable for producing a low-carbon FT synthetic oil.

第1の実施形態に係る低炭素FT合成油製造用合成ガス製造システムの全体構成を示すブロック図である。It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 1st embodiment. 第2の実施形態に係る低炭素FT合成油製造用合成ガス製造システムの全体構成を示すブロック図である。It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 2nd embodiment. 第3の実施形態に係る低炭素FT合成油製造用合成ガス製造システムの全体構成を示すブロック図である。It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 3rd embodiment.

1.第1の実施形態の構成
 第1の実施形態に係る低炭素FT合成油製造用合成ガス製造システム1は、図1に示すように、バイオマス由来ガス化ガス供給装置10と、水素分離装置20と、一酸化炭素分離装置30と、調合装置40とによって構成されている。
1. Configuration of First Embodiment As shown in FIG. 1, a synthesis gas production system 1 for producing low-carbon FT synthetic oil according to the first embodiment includes a biomass-derived gasified gas supply device 10, a hydrogen separation device 20, , A carbon monoxide separating device 30 and a blending device 40.

 バイオマス由来ガス化ガス供給装置10は、ガス化ガスを生成するガス化炉および生成されたガス化ガスを精製する精製装置を含む。ガス化炉は、燃料として間伐材、廃木材、稲わら、麦わら、もみがら、コーン等のバイオマス、好ましくは、木質バイオマスを供給されると、バイオマス由来ガス化ガス100%のガス化ガスを生成する。そして、ガス化炉は、バイオマスと石炭との混合物を混合燃料として供給されると、バイオマス由来ガス化ガスと石炭由来ガス化ガスとが混ざった混合燃料由来のガス化ガスを生成する。さらに、ガス化炉は、バイオマスと廃プラスチック(塩化ビニールを含まない)との混合物を混合燃料として供給されると、バイオマス由来ガス化ガスと廃プラスチック由来ガス化ガスとが混ざった混合燃料由来のガス化ガスを生成する。このように、ガス化炉は、少なくともバイオマス由来ガス化ガスを含むガス化ガスを生成する。そして、バイオマス由来ガス化ガス供給装置10は、ガス化炉で生成された少なくともバイオマス由来ガス化ガスを含むガス化ガスを精製装置で精製して水素分離装置20に供給する。
 バイオマス由来ガス化ガスをガス化炉で生成し、精製装置で精製したバイオマス由来ガス化ガスをガスホルダーに貯蔵するようにした場合は、バイオマス由来ガス化ガス供給装置10は、バイオマス由来ガス化ガスを貯蔵し、水素分離装置20に供給するガスホルダーであってもよい。
The biomass-derived gasification gas supply device 10 includes a gasification furnace for generating gasification gas and a purification device for purifying the generated gasification gas. When supplied with biomass, preferably woody biomass, such as thinned wood, waste wood, rice straw, straw, rice husk, corn, etc., as a fuel, the gasifier generates a 100% biomass-derived gasified gas. I do. Then, when a mixture of biomass and coal is supplied as a mixed fuel, the gasification furnace generates a gasified gas derived from the mixed fuel in which the biomass-derived gasified gas and the coal-derived gasified gas are mixed. Further, when the gasification furnace is supplied with a mixture of biomass and waste plastics (not including vinyl chloride) as a mixed fuel, the gasification furnace is derived from a mixed fuel derived from a mixture of biomass-derived gasification gas and waste plastic-derived gasification gas. Generate gasification gas. Thus, the gasification furnace generates a gasification gas including at least the biomass-derived gasification gas. Then, the biomass-derived gasification gas supply device 10 purifies the gasification gas containing at least the biomass-derived gasification gas generated in the gasification furnace by the purification device and supplies the gasification gas to the hydrogen separation device 20.
When the biomass-derived gasification gas is generated in the gasification furnace and the biomass-derived gasification gas purified by the purification device is stored in the gas holder, the biomass-derived gasification gas supply device 10 uses the biomass-derived gasification gas. May be a gas holder for storing and supplying the hydrogen to the hydrogen separation device 20.

 水素分離装置20は、バイオマス由来ガス化ガス供給装置10に接続され、供給された少なくともバイオマス由来ガス化ガスを含むガス化ガスを、水素とオフガス(第1オフガス)とに分離する。水素分離装置20は、公知の圧力変動吸着法(PSA:Pressure Swing Adsorption)、水素分離高分子膜、水素分離金属膜を用いたものでよい。 The hydrogen separation device 20 is connected to the biomass-derived gasification gas supply device 10 and separates the supplied gasification gas containing at least the biomass-derived gasification gas into hydrogen and off-gas (first off-gas). The hydrogen separation device 20 may use a known pressure fluctuation adsorption method (PSA: Pressure Swing Adsorption), a hydrogen separation polymer membrane, or a hydrogen separation metal membrane.

 一酸化炭素分離装置30は、水素分離装置20に接続され、供給された第1オフガスを一酸化炭素とオフガス(第2オフガス)とに分離する。一酸化炭素分離装置30は、公知の圧力変動吸着法(PSA)、一酸化炭素分離高分子膜、一酸化炭素分離金属膜を用いたものでよい。 The carbon monoxide separator 30 is connected to the hydrogen separator 20 and separates the supplied first off-gas into carbon monoxide and off-gas (second off-gas). The carbon monoxide separation device 30 may use a known pressure fluctuation adsorption method (PSA), a carbon monoxide separation polymer membrane, or a carbon monoxide separation metal membrane.

 調合装置40は、水素分離装置20と一酸化炭素分離装置30とに接続され、水素分離装置20から供給される水素と一酸化炭素分離装置30から供給される一酸化炭素の容量を同温、同圧でそれぞれ計測し、一酸化炭素の容量に対する水素の容量が、目標値になるように調合するものである。これにより、水素分離装置20で分離された水素と一酸化炭素分離装置30で分離された一酸化炭素は、一酸化炭素に対する水素のモル比が目標値になるように調合されて合成ガスとなる。 The preparation device 40 is connected to the hydrogen separation device 20 and the carbon monoxide separation device 30, and has the same temperature as the capacity of the hydrogen supplied from the hydrogen separation device 20 and the carbon monoxide supplied from the carbon monoxide separation device 30. These are measured at the same pressure, and are adjusted so that the capacity of hydrogen with respect to the capacity of carbon monoxide becomes a target value. As a result, the hydrogen separated by the hydrogen separation device 20 and the carbon monoxide separated by the carbon monoxide separation device 30 are prepared so that the molar ratio of hydrogen to carbon monoxide becomes a target value and becomes a synthesis gas. .

 一酸化炭素分離装置30には、オフガス利用装置2が接続され、一酸化炭素ガス分離装置30から供給された第2オフガスを燃料として利用する。オフガス利用装置2は、ボイラの燃焼炉等である。 オ フ The offgas utilization device 2 is connected to the carbon monoxide separation device 30, and uses the second offgas supplied from the carbon monoxide gas separation device 30 as fuel. The off-gas utilization device 2 is a boiler combustion furnace or the like.

 低炭素FT合成油製造用合成ガス製造システム1の最終段となる調合装置40には、FT合成油製造装置3が接続され、FT合成油製造装置3は、供給された一酸化炭素に対する水素のモル比が目標値である合成ガスから公知のフィッシャー・トロプシュ法(FT法:Fischer-Tropsch process)を用いて触媒反応で所望のFT合成油(液体炭化水素)を生成する。FT合成油製造装置3は公知であり、各種の触媒が充填された反応器に組成(H/COモル比)を調整した合成ガスを導入し、式(1)に示す合成反応を行わせてFT合成油(液体炭化水素)を生成する。
 (2n+1)H2 +nCO) → CnH2n+2 +nHO   (1)
 式(1)より、水素(H)と一酸化炭素(CO)とを適正な比率で反応させる必要があり、調合装置40では、水素の一酸化炭素に対するモル比が式(1)から求められる目標値となるように調合される。FT合成油の生成において、式(1)のnは、5から20であるので、目標値はほぼ2である。
The FT synthetic oil production device 3 is connected to the blending device 40, which is the final stage of the low-carbon FT synthetic oil production synthesis gas production system 1, and the FT synthetic oil production device 3 converts hydrogen to carbon monoxide supplied thereto. Using a known Fischer-Tropsch process (FT method), a desired FT synthetic oil (liquid hydrocarbon) is produced from a synthesis gas having a target molar ratio by a catalytic reaction using a known Fischer-Tropsch process. The FT synthetic oil production apparatus 3 is known, and a synthesis gas having an adjusted composition (H 2 / CO molar ratio) is introduced into a reactor filled with various catalysts to perform a synthesis reaction represented by the formula (1). To produce FT synthetic oil (liquid hydrocarbon).
(2n + 1) H 2 + nCO) → CnH 2n + 2 + nH 2 O (1)
From the formula (1), it is necessary to cause hydrogen (H 2 ) and carbon monoxide (CO) to react at an appropriate ratio. In the blending device 40, the molar ratio of hydrogen to carbon monoxide is obtained from the formula (1). Is adjusted so that the target value is obtained. In the production of the FT synthetic oil, n in Equation (1) is 5 to 20, so the target value is almost 2.

2.第1の実施形態の作動
 バイオマス由来ガス化ガス供給装置10は、水素分離装置20に少なくともバイオマス由来ガス化ガスを含むガス化ガスを供給する。水素分離装置20は供給された少なくともバイオマス由来ガス化ガスを含むガス化ガスを水素と第1オフガスに分離し、第1オフガスを一酸化炭素分離装置30に、水素を調合装置40に供給する。一酸化炭素分離装置30は供給された第1オフガスを一酸化炭素と第2オフガスに分離し、一酸化炭素を調合装置40に供給する。調合装置40は、供給された水素および一酸化炭素を水素の一酸化炭素に対するモル比が目標値になるように調合して、低炭素FT合成油の製造に適した合成ガスにする。
2. Operation of First Embodiment The biomass-derived gasification gas supply device 10 supplies a gasification gas containing at least the biomass-derived gasification gas to the hydrogen separation device 20. The hydrogen separator 20 separates the supplied gasified gas containing at least the biomass-derived gasified gas into hydrogen and a first off-gas, and supplies the first off-gas to the carbon monoxide separator 30 and the hydrogen to the blender 40. The carbon monoxide separator 30 separates the supplied first off-gas into carbon monoxide and a second off-gas, and supplies the carbon monoxide to the blender 40. The blending device 40 blends the supplied hydrogen and carbon monoxide such that the molar ratio of hydrogen to carbon monoxide becomes a target value, and makes a synthesis gas suitable for producing a low-carbon FT synthetic oil.

 FT合成油製造装置3は、低炭素FT合成油製造用合成ガス製造システム1から供給された合成ガスからFT合成油を生成する。オフガス利用装置2は、供給された第2オフガスを燃焼して燃焼熱を利用する。これにより、少なくともバイオマス由来ガス化ガスを含むガス化ガスを有効に利用することができる。 The FT synthetic oil producing device 3 generates FT synthetic oil from the synthetic gas supplied from the low-carbon FT synthetic oil producing synthetic gas production system 1. The offgas utilization device 2 uses the combustion heat by burning the supplied second offgas. Thereby, the gasification gas containing at least the biomass-derived gasification gas can be effectively used.

3.第1の実施形態の効果
 第1の実施形態に係る低炭素FT合成油製造用合成ガス製造システム1によれば、少なくともバイオマス由来ガス化ガスを含むガス化ガスに含まれる水素と一酸化炭素をそれぞれ分離し、水素の一酸化炭素に対するモル比が目標値になるように調合するだけであるので、低炭素FT合成油を製造するのに適した合成ガスを容易かつ低コストで製造することができる。
3. Effects of the First Embodiment According to the synthesis gas production system 1 for producing a low-carbon FT synthetic oil according to the first embodiment, at least hydrogen and carbon monoxide contained in the gasification gas containing the biomass-derived gasification gas are used. Since it is only necessary to separate each of them and adjust the molar ratio of hydrogen to carbon monoxide to a target value, it is possible to easily and inexpensively produce a synthesis gas suitable for producing a low-carbon FT synthetic oil. it can.

 バイオマス由来ガス化ガスは一酸化炭素リッチであるので、第1の実施形態で製造した合成ガスからFT合成油を生成すると高い収率は望めない。第2および第3の実施形態は、FT合成油の収率を第1の実施形態より向上させることができる合成ガスを製造可能なシステムである。
4.第2の実施形態の構成
 第2の実施形態は、図2に示すように、調合装置40に水素供給装置50を接続したことのみが第1実施形態と異なる。従って、第1の実施形態と同じ構成要素には同一の参照番号を付して説明を省略する。
Since the biomass-derived gasified gas is rich in carbon monoxide, a high yield cannot be expected if FT synthetic oil is produced from the synthesis gas produced in the first embodiment. The second and third embodiments are systems capable of producing a synthesis gas capable of improving the yield of FT synthetic oil as compared with the first embodiment.
4. Configuration of Second Embodiment The second embodiment differs from the first embodiment only in that a hydrogen supply device 50 is connected to a blending device 40 as shown in FIG. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

 調合装置40には、水素を供給する水素供給装置50が接続されている。水素供給装置50から供給される水素としては、ソーダ電解水素、水電解水素、天然ガス改質水素、バイオガス改質水素、輸入COフリー水素のいずれか一種又は複数種を混合したものでもよい。調合装置40は、水素分離装置20で分離された水素および水素供給装置50から供給された水素と一酸化炭素分離装置30で分離された一酸化炭素とを一酸化炭素に対する水素のモル比が目標値になるように調合して合成ガスにする。 A hydrogen supply device 50 that supplies hydrogen is connected to the preparation device 40. The hydrogen supplied from the hydrogen supply device 50 may be a mixture of one or more of soda electrolytic hydrogen, water electrolytic hydrogen, natural gas reformed hydrogen, biogas reformed hydrogen, and imported CO 2 -free hydrogen. . The mixing device 40 is configured to target the hydrogen separated by the hydrogen separation device 20 and the hydrogen supplied from the hydrogen supply device 50 and the carbon monoxide separated by the carbon monoxide separation device 30 so that the molar ratio of hydrogen to carbon monoxide is equal to the target. It is prepared to a value to obtain a synthesis gas.

5.第2の実施形態の効果
 第2の実施形態では、第1の実施形態が奏する効果に加え、バイオマス由来ガス化ガスに含まれる水素の不足分を水素供給装置50から供給される水素で補うことができるので、低炭素FT合成油を製造するのに適した合成ガス製造の歩留まりを向上することができる。
5. Effects of the Second Embodiment In the second embodiment, in addition to the effects of the first embodiment, the shortage of hydrogen contained in the biomass-derived gasified gas is supplemented by hydrogen supplied from the hydrogen supply device 50. Therefore, the yield of syngas production suitable for producing low-carbon FT synthetic oil can be improved.

6.第3の実施形態の構成
 第3の実施形態は、図3に示すように、バイオマス由来ガス化ガス供給装置10と水素分離装置20との間に混合装置60を介在するとともに、混合装置60に副生ガス供給装置70を接続し、混合装置60でバイオマス由来ガス化ガスと混合ガスとを混合することのみが第1実施形態と異なる。従って、第1の実施形態と同じ構成要素には同一の参照番号を付して説明を省略する。
6. Configuration of Third Embodiment In the third embodiment, as shown in FIG. 3, a mixing device 60 is interposed between a biomass-derived gasified gas supply device 10 and a hydrogen separation device 20, and the mixing device 60 The only difference from the first embodiment is that the by-product gas supply device 70 is connected, and the biomass-derived gasified gas and the mixed gas are mixed by the mixing device 60. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

 混合装置60は、バイオマス由来ガス化ガス供給装置10から少なくともバイオマス由来ガス化ガスを含むガス化ガスを供給されるとともに、副生ガス供給装置70からコークス炉ガスおよび製油所ガスの少なくとも一方からなる副生ガスが供給され、バイオマス由来ガス化ガスと副生ガスとを混合し、混合ガスを生成するように構成されている。コークス炉ガスは、コークス製造に伴い発生する乾留ガスで水素リッチである。製油所ガスは原油の精製プロセスで発生するオフガスで水素リッチである。混合ガスは混合装置60から水素分離装置20に送られ水素と第1オフガスとに分離される。バイオマス由来ガス化ガスを含むガス化ガスに水素リッチな副生ガスを混合された混合ガスは水素の含有量が多くなり、低炭素FT合成油を製造するのに適した合成ガス製造の歩留まりを向上することができる。 The mixing device 60 is supplied with the gasification gas including at least the biomass-derived gasification gas from the biomass-derived gasification gas supply device 10 and is composed of at least one of the coke oven gas and the refinery gas from the by-product gas supply device 70. A by-product gas is supplied, and the biomass-derived gasification gas and the by-product gas are mixed to generate a mixed gas. Coke oven gas is a carbonization gas generated during coke production and is hydrogen-rich. Refinery gas is an off-gas generated in the crude oil refining process and is hydrogen-rich. The mixed gas is sent from the mixing device 60 to the hydrogen separation device 20 and is separated into hydrogen and a first off-gas. A gas mixture of gasified gas containing biomass-derived gasified gas and hydrogen-rich by-product gas has a high hydrogen content, and the production yield of synthetic gas suitable for producing low-carbon FT synthetic oil is improved. Can be improved.

 1:低炭素FT合成油製造用合成ガス製造システム、 2:オフガス利用装置、 3:FT合成油製造装置 10:バイオマス由来ガス化ガス供給装置、 20:水素分離装置、  30:一酸化炭素分離装置、 40:調合装置、 50:水素供給装置、 60:混合装置、 70:副生ガス供給装置 1: Synthetic gas production system for low carbon FT synthetic oil production, 2: Off gas utilization device, 3: FT synthetic oil production device 10: Biomass-derived gasified gas supply device, 20: Hydrogen separation device, 30: Carbon monoxide separation device , # 40: blending device, # 50: hydrogen supply device, # 60: mixing device, # 70: by-product gas supply device

Claims (3)

 少なくともバイオマス由来ガス化ガスを含むガス化ガスを供給するバイオマス由来ガス化ガス供給装置と、
 前記少なくともバイオマス由来ガス化ガスを含むガス化ガスを水素と第1オフガスとに分離する水素分離装置と、
 前記第1オフガスを一酸化炭素と第2オフガスとに分離する一酸化炭素分離装置と、
 前記水素分離装置で分離された水素と前記一酸化炭素分離装置で分離された一酸化炭素とを一酸化炭素に対する水素のモル比が目標値になるように調合して合成ガスにする調合装置と、
 を備える低炭素FT合成油製造用合成ガス製造システム。
Biomass-derived gasification gas supply device that supplies gasification gas containing at least biomass-derived gasification gas,
A hydrogen separation device that separates a gasified gas containing at least the biomass-derived gasified gas into hydrogen and a first off-gas,
A carbon monoxide separator for separating the first offgas into carbon monoxide and a second offgas,
A blending device for blending the hydrogen separated by the hydrogen separator and the carbon monoxide separated by the carbon monoxide separator so that the molar ratio of hydrogen to carbon monoxide becomes a target value to obtain a synthesis gas; ,
A synthesis gas production system for producing low carbon FT synthetic oil, comprising:
 前記調合装置に水素を供給する水素供給装置を接続し、
 前記調合装置は、前記水素分離装置で分離された水素および前記水素供給装置から供給された水素と前記一酸化炭素分離装置で分離された一酸化炭素とを一酸化炭素に対する水素のモル比が目標値になるように調合して合成ガスにする調合装置と、
 を備える請求項1に記載の低炭素FT合成油製造用合成ガス製造システム。
Connecting a hydrogen supply device for supplying hydrogen to the blending device,
The blending device is configured such that the hydrogen separated by the hydrogen separation device and the hydrogen supplied from the hydrogen supply device and the carbon monoxide separated by the carbon monoxide separation device have a target molar ratio of hydrogen to carbon monoxide. A blending device that blends to a value to produce synthesis gas;
The synthetic gas production system for producing a low carbon FT synthetic oil according to claim 1, comprising:
 少なくともバイオマス由来ガス化ガスを含むガス化ガスを供給するバイオマス由来ガス化ガス供給装置と、
 副生ガスを供給する副生ガス供給装置と、
 前記少なくともバイオマス由来ガス化ガスを含むガス化ガスと前記副生ガスとを混合して混合ガスとする混合装置と、
 前記混合ガスを水素と第1オフガスとに分離する水素分離装置と、
 前記第1オフガスを一酸化炭素と第2オフガスとに分離する一酸化炭素分離装置と、
 前記水素分離装置で分離された水素と前記一酸化炭素分離装置で分離された一酸化炭素とを一酸化炭素に対する水素のモル比が目標値になるように調合して合成ガスにする調合装置と、
 を備える低炭素FT合成油製造用合成ガス製造システム。
 
Biomass-derived gasification gas supply device that supplies gasification gas containing at least biomass-derived gasification gas,
A by-product gas supply device for supplying by-product gas;
A mixing device that mixes the gasified gas containing at least the biomass-derived gasified gas and the by-product gas to form a mixed gas,
A hydrogen separator for separating the mixed gas into hydrogen and a first off-gas,
A carbon monoxide separator for separating the first offgas into carbon monoxide and a second offgas,
A blending device for blending the hydrogen separated by the hydrogen separator and the carbon monoxide separated by the carbon monoxide separator so that the molar ratio of hydrogen to carbon monoxide becomes a target value to obtain a synthesis gas; ,
A synthesis gas production system for producing low carbon FT synthetic oil, comprising:
PCT/JP2018/034235 2018-09-14 2018-09-14 Synthetic gas production system for low-carbon ft synthetic oil production Ceased WO2020054063A1 (en)

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