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WO1983001626A1 - Procede de traitement de residus provenant de l'hydrogenation de charbon - Google Patents

Procede de traitement de residus provenant de l'hydrogenation de charbon Download PDF

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Publication number
WO1983001626A1
WO1983001626A1 PCT/DE1982/000200 DE8200200W WO8301626A1 WO 1983001626 A1 WO1983001626 A1 WO 1983001626A1 DE 8200200 W DE8200200 W DE 8200200W WO 8301626 A1 WO8301626 A1 WO 8301626A1
Authority
WO
WIPO (PCT)
Prior art keywords
gasification
coal
residues
hydrogenation
mixture
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/DE1982/000200
Other languages
German (de)
English (en)
Inventor
Gesellschaft Für Kohleverflüssigung Mbh Gfk
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.)
GfK SE
Original Assignee
GfK SE
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 GfK SE filed Critical GfK SE
Priority to AU89963/82A priority Critical patent/AU8996382A/en
Publication of WO1983001626A1 publication Critical patent/WO1983001626A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/30—Fuel charging devices
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/006—Combinations of processes provided in groups C10G1/02 - C10G1/08
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water

Definitions

  • the invention relates to a method for processing residues from the hydrogenation of coal.
  • the hydrogenation product obtained is separated into a gas phase and a liquid phase in a hot separator connected downstream of the hydrogenation reactor.
  • the liquid phase also contains asphaltenes, but also valuable distillate oils, which are separated as much as possible from the hydrogenation residue and used to mix the coal.
  • it has already been proposed to gasify the residue in a dust gasification plant in the presence of oxygen and water vapor, essentially to carbon monoxide and hydrogen.
  • the present invention has for its object to develop a simple and economical process for the treatment of residues from coal hydrogenation by gasification, which avoids these disadvantages.
  • This object is achieved in that the gasification of the residues in a countercurrent shaft carburetor takes place, the residues before the gasification are mixed with solids whose softening point is above the softening point of the residues, the mixture is at least partially briquetted and at least some of the heavy hydrocarbons contained in the gasification product are separated and used to mix the fresh coal to be hydrogenated becomes.
  • the ash When the briquetted mixture is gasified in the countercurrent shaft gasifier, the ash accumulates in a dry form, so that there can be no damage to the interior of the gasifier, such as is caused by the liquid, very corrosive ash.
  • Distillate oils or heavy hydrocarbons remaining in the hydrogenation residue are expelled from the heating briquettes in the gasifier, separated from the gasification product and used again for mixing the fresh coal to be hydrogenated.
  • the gas generated in the counter-current shaft gasifier can, at least in part, be converted to hydrogen, which is returned to the hydrogenation system as hydrogenation hydrogen.
  • coal is used as a solid, generally more gas is generated than is required to obtain hydrogenation hydrogen.
  • ash from the countercurrent shaft gasifier is used as a solid; the amount of coal and ash used can largely adapt the amount of gas generated to the requirements become.
  • H 2 O is therefore expediently injected in the form of water mist, so that, compared to the injection of steam, additional heat of evaporation is removed from the process and correspondingly less H 2 O is required. Waste water, for example from the gasification plant itself, can be used for the injection.
  • sulfur-binding substances for example lime, are already mixed into the mixture of hydrogenation residue and solids to be briquetted.
  • these are, according to a further feature of the invention, treated with an extractant, advantageously with a Koh lenwassersfoff fraction with a boiling end up to about 200 C, which is in the upper region of the Counterflow shaft gasifier is initiated.
  • the action of the supercritical extractant is based essentially on its high density, which is up to 40% of the density of the extractant in the liquid state, so that a particularly large amount of distillate oils can be absorbed by the extractant.
  • Lighter hydrocarbons, heavier hydrocarbons and thick tar are separated separately from the product gas. Some of the lighter hydrocarbons are called again. Extractant introduced into the gasification reactor, while the heavier hydrocarbons, at least partially, possibly with the thick tar, are returned to the hydrogenation system for mixing the fresh coal to be hydrogenated. Further explanations of the invention can be found in the exemplary embodiment shown schematically in the figure.
  • Coal mixed with grinding oil and a hydrogenation catalyst to form a slurry is pumped via line 1 at a pressure of approx. 200 bar and a temperature of approx. 420.degree. C. into a hydrogenation reactor 2 and in the presence of hydrogen supplied via line 3 at a temperature of approx 470 ° C hydrogenated.
  • the hydrogenation product withdrawn from the hydrogenation reactor 2 is subjected to a phase separation in a hot separator 4.
  • the vapor phase of the hydrogenation product consists essentially of hydrogen, other gases and vapors. It is withdrawn via a line 6 at the head of the hot separator 4.
  • the liquid phase also contains bitumen and solids, such as unused coal, ash and catalyst particles.
  • This bottom phase is drawn off at the bottom of the hot separator 4, cooled in a cooler 8, for example by giving off heat to fresh coal pulp or hydrogen hydrogen, and then expanded via a relaxation valve 10 into a mixing chamber 11.
  • the gases released during the expansion are withdrawn from the mixing chamber 11 via a line 12.
  • the remaining hydrogenation residue is diluted with naphtha supplied via a line 13 and which is removed from the cold separator from the hydrogenation system and then spun in a centrifuge 15.
  • the visual residue in which there is a residual portion of distillate oil and naphtha, coal or ash or coal and ash is added via a line 16, the mixture is mixed in a mixer 17 and then briquetted in a briquetting device 18.
  • the briquettes are passed through a lock 25 to a counter-current shaft gasifier 26 and gasified in the presence of O 2 and H 2 O.
  • O 2 is blown in via a line 27 and H 2 O is injected in the form of water via a line 28.
  • a supercritical extractant preferably a hydrocarbon fraction with a boiling end of up to about 200 ° C, is gasified via a line 29 at a temperature of about 400 ° C and a pressure of about 25 bar in the upper region of the counterflow shaft 26 initiated.
  • a low-boiling hydrocarbon fraction In a separating stage 30 downstream of the countercurrent chess gasifier 26, a low-boiling hydrocarbon fraction, the heavier hydrocarbons and thick tar, which can still contain dust, are separated off from the withdrawn product gases.
  • Part of the low-boiling hydrocarbon fraction is returned to the countercurrent shaft gasifier 26 as an extractant.
  • the heavier hydrocarbons are used as rubbing oil for the hydrogenation Fresh coal mixed in.
  • the thick tar is again added to the centrifugal residue. However, it can also be used entirely as a rubbing oil.
  • the processing of these products can also be carried out in parts of the plant which are required for the hydrogenation anyway.
  • the extraction agent and the heavy hydrocarbons can also be separated in the distillation 20.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Dans un procédé de traitement de résidus provenant de l'hydrogénation de charbon (2) gazéifié en présence d'O2, le cas échéant de H2O en tant qu'agent gazéifiant, la gazéification des résidus s'effectue dans un puits de gazéification à contre-courant (26). Avant la gazéification, on mélange les résidus avec des matériaux solides (16) dont le point de ramollissement se situe au-dessus de celui des résidus, et on agglomère en partie au moins le mélange (18). Une partie au moins des hydrocarbures lourds contenus dans le produit de gazéification est séparée et est utilisée pour conditionner le charbon frais à hydrogéner. Comme matériaux solides on introduit du charbon et/ou des scories, de préférence de celles provenant du puits de gazéification même; leur part s'établit en fonction du besoin quantitatif en gaz produit.
PCT/DE1982/000200 1981-10-31 1982-10-07 Procede de traitement de residus provenant de l'hydrogenation de charbon Ceased WO1983001626A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU89963/82A AU8996382A (en) 1981-10-31 1982-10-07 Verfahren zum aufbereiten von ruckstanden aus der kohlehydrierung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3143353.7811031 1981-10-31
DE19813143353 DE3143353C2 (de) 1981-10-31 1981-10-31 Verfahren zur Aufbereitung von Rückständen aus der Kohlehydrierung

Publications (1)

Publication Number Publication Date
WO1983001626A1 true WO1983001626A1 (fr) 1983-05-11

Family

ID=6145363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1982/000200 Ceased WO1983001626A1 (fr) 1981-10-31 1982-10-07 Procede de traitement de residus provenant de l'hydrogenation de charbon

Country Status (2)

Country Link
DE (1) DE3143353C2 (fr)
WO (1) WO1983001626A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143106A3 (en) * 1983-11-14 1986-03-05 Aktiengesellschaft Voest-Alpine Method of working up heavy metal-containing residues from the chemical industry
WO1988000962A1 (fr) * 1986-08-06 1988-02-11 C. Deilmann Ag Procede de traitement thermique de crasses aqueuses d'huile ou similaires

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882283C (de) * 1944-02-26 1953-07-06 Basf Ag Verfahren zur Verwertung der entoelten Rueckstaende der Kohleverfluessigung
USB395671I5 (fr) * 1972-01-03 1975-01-28
DE2735829A1 (de) * 1977-08-09 1979-02-22 Metallgesellschaft Ag Verfahren zur erzeugung von kohlenwasserstoffen aus kohle
EP0012457A1 (fr) * 1978-12-11 1980-06-25 Metallgesellschaft Ag Procédé pour la production des corps formes de combustibles solides pour la gazéification
US4248605A (en) * 1979-07-30 1981-02-03 Conoco, Inc. Gasification of coal liquefaction residues

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882283C (de) * 1944-02-26 1953-07-06 Basf Ag Verfahren zur Verwertung der entoelten Rueckstaende der Kohleverfluessigung
USB395671I5 (fr) * 1972-01-03 1975-01-28
DE2735829A1 (de) * 1977-08-09 1979-02-22 Metallgesellschaft Ag Verfahren zur erzeugung von kohlenwasserstoffen aus kohle
EP0012457A1 (fr) * 1978-12-11 1980-06-25 Metallgesellschaft Ag Procédé pour la production des corps formes de combustibles solides pour la gazéification
US4248605A (en) * 1979-07-30 1981-02-03 Conoco, Inc. Gasification of coal liquefaction residues

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143106A3 (en) * 1983-11-14 1986-03-05 Aktiengesellschaft Voest-Alpine Method of working up heavy metal-containing residues from the chemical industry
WO1988000962A1 (fr) * 1986-08-06 1988-02-11 C. Deilmann Ag Procede de traitement thermique de crasses aqueuses d'huile ou similaires

Also Published As

Publication number Publication date
DE3143353A1 (de) 1983-05-11
DE3143353C2 (de) 1983-09-15

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