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1. WO2007143376 - CATALYTIC STEAM GASIFICATION PROCESS WITH RECOVERY AND RECYCLE OF ALKALI METAL COMPOUNDS

Publication Number WO/2007/143376
Publication Date 13.12.2007
International Application No. PCT/US2007/069265
International Filing Date 18.05.2007
IPC
C10J 3/00 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF GASES CONTAINING CARBON MONOXIDE AND HYDROGEN FROM SOLID CARBONACEOUS MATERIALS BY PARTIAL OXIDATION PROCESSES INVOLVING OXYGEN OR STEAM ; CARBURETTING AIR OR OTHER GASES
3Production of gases containing carbon monoxide and hydrogen, e.g. synthesis gas or town gas, from solid carbonaceous materials by partial oxidation processes involving oxygen or steam
CPC
C10J 2300/0903
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
0903Feed preparation
C10J 2300/093
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
0913Carbonaceous raw material
093Coal
C10J 2300/0983
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
0983Additives
C10J 2300/0986
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
0983Additives
0986Catalysts
C10J 2300/1631
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
16Integration of gasification processes with another plant or parts within the plant
1625with solids treatment
1628Ash post-treatment
1631Ash recycling
C10J 2300/1696
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
2300Details of gasification processes
16Integration of gasification processes with another plant or parts within the plant
1696with phase separation, e.g. after condensation
Applicants
  • GREATPOINT ENERGY, INC. [US]/[US] (AllExceptUS)
  • SHETH, Atul C. [US]/[US] (UsOnly)
Inventors
  • SHETH, Atul C.
Agents
  • MCDONNELL BOEHNEN HULBERT & BERGHOFF LLP
Priority Data
11/421,51101.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CATALYTIC STEAM GASIFICATION PROCESS WITH RECOVERY AND RECYCLE OF ALKALI METAL COMPOUNDS
(FR) PROCÉDÉ DE GAZÉIFICATION DE VAPEUR CATALYTIQUE AVEC RÉCUPÉRATION ET RECYCLAGE DE COMPOSÉS MÉTALLIQUES ALCALINS
Abstract
(EN)
A high efficiency gasification process for converting carbonaceous solids to methane and apparatus for its practice are described. The process includes reacting steam and carbonaceous solids comprising ash in the presence of alkali metal catalyst in a gasification reactor to produce combustible gases and char particles comprising ash and alkali metal catalyst constituents, treating a stream of such char particles in an alkali metal catalyst recovery system to recover the catalyst constituents as alkali metal compounds, and recycling such recovered compounds. Within the alkali metal catalyst recovery system the process includes quenching the stream of char particles with water whereby such particles are cooled and fractured, dissolving soluble alkali metal catalyst constituents from the fractured solids to form a first alkali metal catalyst solution and washed solids, optionally reacting the washed solids in alkaline solution to form a second alkali metal catalyst solution, upgrading said first and optional second alkali solution to recover the alkali metal catalyst constituents as said alkali metal compounds.
(FR)
La présente invention concerne un procédé de gazéification à haute efficacité destiné à convertir des solides carbonés en méthane, et un appareil destiné à son application. Le procédé inclut les étapes suivantes : mise en réaction de vapeur et de solides carbonés comprenant des cendres en présence d'un catalyseur de métal alcalin dans un réacteur de gazéification pour produire des gaz combustibles et des particules de charbon comprenant des cendres et des constituants de catalyseur de métal alcalin, traitement d'une vapeur de ces particules de charbon dans un système de récupération de catalyseur de métal alcalin afin de récupérer les constituants du catalyseur en tant que composés métalliques alcalins, et recyclage de ces composés récupérés. Dans le système de récupération de catalyseur de métal alcalin, le procédé inclut le trempage du flux de particules de charbon avec de l'eau, lesdites particules étant ainsi refroidies et fissurées, la dissolution des constituants de catalyseurs de métal alcalin solubles à partir des solides fissurés pour former une première solution de catalyseur de métal alcalin et des solides lavés, éventuellement la mise en réaction des solides lavés dans une solution alcaline pour former une seconde solution de catalyseur de métal alcalin, et la valorisation de ladite première solution alcaline et de ladite seconde solution alcaline en option pour récupérer les constituants de catalyseur de métal alcalin en tant que lesdits composants de métal alcalin.
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