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1. WO1979001062 - COMBINED COAL LIQUEFACTION AND GASIFICATION PROCESS

Publication Number WO/1979/001062
Publication Date 13.12.1979
International Application No. PCT/US1979/000232
International Filing Date 13.04.1979
IPC
C10G 1/00 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING 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
1Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
C10G 1/06 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING 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
1Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
06by destructive hydrogenation
CPC
C10G 1/006
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
1Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
006Combinations of processes provided in groups C10G1/02 - C10G1/08
C10G 1/065
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
1Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
06by destructive hydrogenation
065in the presence of a solvent
Applicants
Inventors
Priority Data
90529612.05.1978US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMBINED COAL LIQUEFACTION AND GASIFICATION PROCESS
(FR) PROCEDE DE LIQUEFACTION ET DE GAZEIFICATION COMBINEES
Abstract
(EN)
Conversion of raw coal to distillate liquid and gaseous hydrocarbon products by solvent liquefaction in the presence of molecular hydrogen employing recycle of mineral residue is commonly performed at a higher thermal efficiency than conversion of coal to pipeline gas in a gasification process employing partial oxidation and methanation reactions. The prior art has disclosed a combination coal liquefaction-gasification process employing recycle of mineral residue in the liquefaction zone wherein all the normally solid dissolved coal produced in the liquefaction zone is passed to a gasification zone for conversion to hydrogen, where the amount of normally solid dissolved coal prepared and passed to the gasification zone is just sufficient to enable the gasification zone to produce the exact hydrogen requirement of the process. The present invention provides an improvement in the thermal efficiency of the combination process by utilizing formula based on feed coal characteristics to calculate an amount of normally solid dissolved coal (74) to be prepared in the liquefaction zone (22, 26) and passed to the gasification zone (76) to enable the gasification zone to generate not only all of the hydrogen (92) required by the liquefaction zone (22, 26) but also to produce synthesis gas (94) for use as fuel in the liquefaction zone.
(FR)
La conversion du charbon brut en hydrocarbures liquides et gazeux distilles par liquefaction au solvant en presence d"hydrogene moleculaire utilisant le recyclage des residus mineraux se fait couramment avec un rendement thermique plus eleve que la conversion du charbon en un gaz de pipeline dans un procede de gazeification utilisant des reactions d"oxydation et de methanation partielles. L"art anterieur a decrit une installation combinee de liquefaction-gazefication du charbon utilisant le recyclage des residus mineraux vers la zone de liquefaction ou tout le charbon dissout solide non converti en produits liquides ou gazeux dans la zone de liquefaction est passe dans une zone de gazeification pour le convertir en hydrogene. Dans l"installation de l"art anterieur, la quantite normale de charbon dissout solide qui passe vers la zone de gazeification est juste suffisante pour permettre a la zone de gazeification de produire tout l"hydrogene requis par le procede. La presente invention permet d"ameliorer le rendement thermique du procede en utilisant une formule basee sur les caracteristiques du charbon d"alimentation pour calculer une quantite de charbon solide normalement dissout (74) a preparer dans la zone de liquefaction (22, 26), et a transfere vers la zone de gazeification (76), afin de permettre a la zone de gazeification de produire non seulement la totalite de l"hydrogene (92) necessaire pour la zone de liquefaction (22, 26), mais aussi pour produire le gaz de synthese (94) destine a etre utilise comme combustible dans la zone de liquefaction.
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