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WO2006030651A1 - Matériau de fixation de gaz de dioxyde de carbone obtenu par thermolyse d’amiante chrysotile et/ou serpentine contenant de l’amiante chrysotile - Google Patents

Matériau de fixation de gaz de dioxyde de carbone obtenu par thermolyse d’amiante chrysotile et/ou serpentine contenant de l’amiante chrysotile Download PDF

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Publication number
WO2006030651A1
WO2006030651A1 PCT/JP2005/016122 JP2005016122W WO2006030651A1 WO 2006030651 A1 WO2006030651 A1 WO 2006030651A1 JP 2005016122 W JP2005016122 W JP 2005016122W WO 2006030651 A1 WO2006030651 A1 WO 2006030651A1
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WO
WIPO (PCT)
Prior art keywords
carbon dioxide
asbestos
forsterite
chrysotile asbestos
serpentinite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2005/016122
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English (en)
Japanese (ja)
Inventor
Kiyotsugu Yamashita
Tetsuya Shimamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nozawa Corp
Original Assignee
Nozawa Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nozawa Corp filed Critical Nozawa Corp
Publication of WO2006030651A1 publication Critical patent/WO2006030651A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates

Definitions

  • Carbon dioxide fixing material obtained by thermal decomposition of warm asbestos and Z or serpentine containing warm asbestos
  • the present invention relates to forsterite (also referred to as “forsterite”), which is effective as a measure against global warming, and has excellent performance of diacid-carbon fixation. It is related to forsterite, which is excellent in carbon dioxide fixation performance obtained from Iwaoka.
  • Hot asbestos and serpentinite containing Z or hot asbestos, and hot asbestos recovered from products containing hot asbestos, etc. are thermally decomposed to become non-asbestos, eliminating harmful biological effects and fixing carbon dioxide Recycled as a material with excellent ability.
  • carbon dioxide carbon dioxide
  • environmental destruction such as global warming has become a global problem.
  • technology for reducing carbon dioxide and carbon dioxide in the atmosphere and technology for reusing it are required, and carbon dioxide immobilization is one of them.
  • carbon dioxide can be fixed by an electric energy method, a method of fixing to various substances, a method of fixing to the ground, a method of using marine organisms, or a method of absorbing it in seawater.
  • Patent Document 1 a) Method using electric energy: Patent Document 1
  • Patent Document 2 a) Method using electric energy: Patent Document 1
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-73978
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-97894
  • Patent Document 3 Japanese Patent No. 3105953
  • Patent Document 4 JP-A-6-71161
  • Patent Document 5 Japanese Patent No. 3004393
  • the electric power generation method relies on the current thermal power generation method
  • the electric power generation method is meaningless because it generates carbon dioxide in the direction of thermal power generation.
  • a method for immobilizing the substance in a substance there is a method using a crystalline silicate, but it is disadvantageous in terms of cost because it cannot be immobilized by a crystalline silicate alone.
  • problems such as environmental safety in the method of using underground, deep sea, and marine organisms.
  • Thermal asbestos and serpentinite generally lose water of crystallization at 500 to 700 ° C, and the crystal structure is destroyed and becomes amorphous. However, when it exceeds 800 ° C, it reverts to forsterite. Crystallizes and further enstatite crystals form in the temperature range around 1000 ° C.
  • the present inventors have performed heat treatment in a temperature range in which warm asbestos and serpentinite become amorphous and crystallization into forsterite is suppressed as much as possible. In comparison with pure substance of forsterite, we found that the value of crystallinity in terms of peak area by X-ray analysis decreased, and the reactivity with carbon dioxide gas increased dramatically.
  • Hot asbestos and / or serpentinite containing hot asbestos is fired at 660 ° C to 800 ° C, and the crystallinity is 7 to 80 in terms of peak area by X-ray analysis. Forsterite with excellent carbon dioxide fixing performance.
  • Hot asbestos and / or serpentinite containing hot asbestos is fired at 660 ° C to 800 ° C, and the crystallinity is 7 to 80 in terms of peak area by X-ray analysis.
  • Carbon dioxide fixed material characterized by containing stellite.
  • the false obtained by firing warm asbestos and / or serpentine containing warm asbestos Carbon dioxide is fixed by using terlite.
  • forsterite that immobilizes carbon dioxide is obtained by the following treatment.
  • Forsterite with excellent carbon dioxide fixation performance is obtained by calcining warm asbestos and serpentinite containing Z or warm asbestos at 660 ° C to 800 ° C. The atmosphere during heating and firing may be in the air.
  • the material structure of warm asbestos is modified into forsterite such as chrysotile mosquito.
  • Forsterite with excellent carbon dioxide immobilization performance can be obtained.
  • the carbon dioxide fixing material obtained by thermally decomposing the warm asbestos according to the present invention is obtained by calcining warm asbestos and Z or serpentinite containing warm asbestos at a low temperature of 660 ° C to 800 ° C to obtain a crystallinity.
  • the value represented by the peak area by X-ray analysis is set to 7 to 80, it has excellent carbon dioxide fixation performance.
  • the crystallinity is the peak area (peak height) of the first peak of forsterite (36.5 °) in the X-ray diffraction diagram of the carbon dioxide fixed material after pyrolysis. X half-value width) is calculated, and the comparison value is shown when the peak area of pure forsterite is 100 as a comparison. Therefore, the comparative value is high but the crystallinity is high, and the lower the comparative value is, the lower the crystallinity is.
  • the carbon dioxide-fixed soot material obtained by thermally decomposing warm asbestos according to the present invention can be easily obtained by heat-treating warm asbestos-containing serpentine widely existing in Japan as a natural resource. Further, the carbon dioxide fixing material obtained by thermally decomposing the warm asbestos of the present invention is obtained by calcining warm asbestos and Z or serpentinite containing warm asbestos at 660 ° C to 800 ° C and analyzing the crystallinity by X-ray analysis. Those with a peak area value of 7 to 80 are excellent in carbon dioxide fixation performance and have higher diacid / carbon fixation performance than natural mineral forsterite. This makes it possible to effectively fix carbon dioxide, the main cause of global warming.
  • the energy required for non-asbestos formation can be reduced by lowering the heat treatment temperature and lowering the crystallinity.
  • the forsterite produced at this time was calcined at 660 ° C to 800 ° C, and the crystallinity was expressed as a peak area by X-ray analysis of 7 to 80. ⁇ Although it has excellent performance, specifically, we conducted a differential thermal analysis on the target warm asbestos and serpentinite, and exceeded the temperature showing an endothermic peak in the temperature range of 500 ° C or higher, generating heat.
  • the purpose can be achieved by performing heat treatment in the temperature range below the peak temperature and decomposing the warm asbestos. That is, the firing temperature can be set by measuring the endothermic peak temperature in the differential thermal analysis.
  • the differential thermal analysis shows the peak of crystallization water withdrawal and the peak temperature of recrystallization into forsterite. Therefore, it is necessary to perform heating in this temperature range. In general, this temperature range may vary slightly depending on the location of the force temperature asbestos and serpentinite corresponding to 660 ° C to 800 ° C, so it is desirable to confirm this by differential thermal analysis.
  • the heating and holding time requires that the asbestos is completely decomposed to become non-asbestos. This makes it possible to completely eliminate harmful biological effects.
  • the heat treatment is completed in about 0.5 to 3 hours. Note that the closer the temperature is to the upper limit, the shorter the processing time, the higher the recrystallization rate of forsterite, and the higher the crystallinity expressed by the peak area by X-ray analysis. On the other hand, the closer to the minimum temperature, the forsterite crystals The treatment time required for the decomposition of warm asbestos is long.
  • the heat treatment conditions are preferably a temperature of 700 to 750 ° C and a heating time of 1 to 1.5 hours in order to keep the economic efficiency of heating and the specific surface area of the processed material high. is there.
  • any heating furnace used as an industrial furnace can be used, but an externally heated rotary furnace or a roller hearth kiln that can easily maintain heating at 660 ° C to 800 ° C is suitable.
  • the target material of the present invention is warm asbestos, serpentinite containing warm asbestos, and warm asbestos recovered through processing such as pulverization and classification from industrial products such as building materials containing warm asbestos. Can also be applied.
  • the material treated as described above can be fixed with carbon dioxide at normal pressure.
  • carbon dioxide gas may be immobilized under supercritical conditions.
  • the specific surface area of the obtained carbon dioxide fixed material is influenced by the length of the chrysotile fiber.
  • Forsterite with a high specific surface area can be obtained by heating and firing long fiber products. This is because a long fiber has a large area for adsorbing carbon dioxide, so that the amount of fixed fiber increases.
  • the fiber length also affects the crystallization during firing. When fired at the same temperature, those with long fiber lengths are forsterite with low crystallinity and those with short fiber length. Those with a long fiber length pass 30% on a 15 O / zm sieve, and those with a short fiber length pass all on a 150 m sieve.
  • the immobilization reaction temperature is preferably near room temperature, and as the temperature increases, the immobilization efficiency decreases. (20-40 ° C is desirable.)
  • reaction time is 20 to 24 hours, and the fixed amount reaches saturation.
  • hot asbestos and / or hot asbestos-containing serpentinite can be used as a raw material, but pulverized from corrugated hot asbestos slate and hot asbestos slate board, which are waste materials containing hot asbestos. Separated recycled asbestos can also be used.
  • adsorption treatment conditions were a reaction time of 48 hours, a pressure of 8 MPa, and a temperature of 100 ° C.
  • the reactor is placed in an oil bath (100 ° C) (theoretical pressure: 8. OMPa) and allowed to react for 48 hours.
  • the product is vacuum dried at 60 ° C for 10 hours.
  • the specific surface area was measured by the BET 3-point method using a BET specific surface area measuring device.
  • the weight gain is also estimated by the amount of fixed carbon dioxide.
  • the measurement results are shown in the following table. (Each test and test result)
  • Carbon dioxide fixation rate Increased weight due to fixation Z Weight before fixation
  • Immobilization material Canadian 4 class chrysotile 740 ° C ⁇ 1 hour fired product (Test conditions)
  • Immobilization material Canadian 4 class chrysotile 740 ° C ⁇ Crushed after firing for 1 hour (test conditions)
  • Immobilization material Canadian 4 class chrysotile 740 ° C ⁇ Crushed after firing for 1 hour (test conditions)
  • Carbon dioxide fixation conditions normal pressure reaction (water content 30% ⁇ 24 hours)
  • Immobilization material Canadian 4 class chrysotile 740 ° C ⁇ Crushed after firing for 1 hour (test conditions)
  • Immobilization material Canadian 4 class chrysotile 740 ° C (Test conditions)
  • the cytotoxicity is the same level as that of the inorganic fiber wollastonite, which has been confirmed to be safe.
  • the forsterite having excellent carbon dioxide fixation performance according to the present invention renders warm asbestos in cement product waste such as fire-resistant coating material slate as a construction material particularly problematic in terms of pollution, and recycles it. It provides a useful application of recycled warm asbestos in building materials that need to be recycled.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

L’invention entend utiliser efficacement de l’amiante chrysotile ou de la serpentine contenant de l’amiante chrysotile comme matériau de fixation de dioxyde de carbone servant à la réduction de gaz de dioxyde de carbone (dioxyde de carbone) contenu dans l’atmosphère par conversion de la structure chrysotile d’amiante en structure forstérite. L’invention concerne de la forstérite d’une excellente capacité de fixation de gaz de dioxyde de carbone produite par cuisson d’amiante chrysotile et/ou de serpentine contenant de l’amiante chrysotile à une température comprise entre 660° et 800°C et caractérisée par un degré de cristallisation, exprimé par une zone de pic d’analyse aux rayons X, de 7 à 80. L’invention porte sur un matériau de fixation de gaz de dioxyde de carbone caractérisé en ce qu’il contient la forstérite produite par cuisson d’amiante chrysotile et/ou de serpentine contenant de l’amiante chrysotile à une température comprise entre 660° et 800°C de façon à présenter un degré de cristallisation, exprimé par une zone de pic d’analyse aux rayons X, de 7 à 80.
PCT/JP2005/016122 2004-09-02 2005-09-02 Matériau de fixation de gaz de dioxyde de carbone obtenu par thermolyse d’amiante chrysotile et/ou serpentine contenant de l’amiante chrysotile Ceased WO2006030651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004255479A JP2008019099A (ja) 2004-09-02 2004-09-02 炭酸ガス固定化性能に優れたフォルステライト
JP2004-255479 2004-09-02

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WO2006030651A1 true WO2006030651A1 (fr) 2006-03-23

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PCT/JP2005/016122 Ceased WO2006030651A1 (fr) 2004-09-02 2005-09-02 Matériau de fixation de gaz de dioxyde de carbone obtenu par thermolyse d’amiante chrysotile et/ou serpentine contenant de l’amiante chrysotile

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JP (1) JP2008019099A (fr)
WO (1) WO2006030651A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142017A3 (fr) * 2007-05-21 2009-02-26 Shell Int Research Procédé de séquestration de dioxyde de carbone par carbonatation minérale
CN114573366A (zh) * 2022-03-28 2022-06-03 武汉理碳环保科技有限公司 一种用于碳中和的镁橄榄石多孔体及其制备方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101344127B1 (ko) 2012-01-16 2013-12-23 전남대학교산학협력단 석면보드의 무해화 및 이산화탄소 고정방법
WO2013002542A2 (fr) * 2011-06-30 2013-01-03 전남대학교산학협력단 Procédé utilisant des déchets pour fixer le dioxyde de carbone
KR101471381B1 (ko) * 2013-05-13 2014-12-10 한국세라믹기술원 무기결합재 조성물

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10249153A (ja) * 1997-03-11 1998-09-22 Natl Inst For Res In Inorg Mater アルカリ土類珪酸塩によるｃｏ２の固定化方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10249153A (ja) * 1997-03-11 1998-09-22 Natl Inst For Res In Inorg Mater アルカリ土類珪酸塩によるｃｏ２の固定化方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
FAUTH DJ ET AL: "Carbon dioxide storage as mineral carbonates.", PREPR. PAP. AM. CHEM SOC, DIV. FUEL CHEM., vol. 45, no. 4, August 2000 (2000-08-01), pages 708 - 712, XP002994930 *
MCKELVY MJ ET AL: "Exploration of the Role of Heat Activation in Enhancing Serpentine Carbon Sequestration Reactions.", ENVIRON SCI TECHNOL., vol. 38, no. 24, December 2004 (2004-12-01), pages 6897 - 6903, XP002994927 *
O'CONNOR WK ET AL: "Carbon Dioxide Sequestration by Direct Aqueous Mineral Carbonation.", PRO 26TH INT TEC CONF COAL UTIL FUEL SYST., March 2001 (2001-03-01), pages 765 - 776, XP002994929 *
O'CONNOR WK ET AL: "Carbon dioxide sequestration by direct mineral carbonation with carbonic acid.", PROC 25TH INT TECH CONF COAL UTIL FUEL SYST., August 2000 (2000-08-01), pages 153 - 164, XP002994931 *
O'CONNOR WK ET AL: "Carbon dioxide sequestration by direct mineral carbonation: process mineralogy of feed and products.", MINER METALL PROCESS., vol. 19, no. 2, May 2002 (2002-05-01), pages 95 - 101, XP002994928 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142017A3 (fr) * 2007-05-21 2009-02-26 Shell Int Research Procédé de séquestration de dioxyde de carbone par carbonatation minérale
CN114573366A (zh) * 2022-03-28 2022-06-03 武汉理碳环保科技有限公司 一种用于碳中和的镁橄榄石多孔体及其制备方法

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