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Four-train catalytic gasification systems

A system and catalyst technology, applied in the direction of catalytic treatment of combustible gas, hydrogen/syngas production, gas fuel, etc., can solve the problems of loss of productivity, increase of production cost, shutdown of gasification train, etc.

Inactive Publication Date: 2011-05-25
GREATPOINT ENERGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the loss of a single component in any train due to failure or maintenance could require the shutdown of the entire gasification train, resulting in a loss of productivity
Units in feedstock processing and gas purification and separation systems may have different capacities, resulting in overloading or underloading of specific units throughout the system, loss of efficiency and increased production costs

Method used

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  • Four-train catalytic gasification systems
  • Four-train catalytic gasification systems
  • Four-train catalytic gasification systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0320] exist figure 1 One embodiment of the system of the present invention is illustrated in . Wherein, the system includes a single raw material operation (100); the first catalyst loading unit (201), the second catalyst loading unit (202), the third catalyst loading unit (203) and the fourth catalyst loading unit (204); A gasification reactor (301), a second gasification reactor (302), a third gasification reactor (303) and a fourth gasification reactor (304); the first heat exchanger (401), the second Heat exchanger (402), third heat exchanger (403) and fourth heat exchanger (404); first acid gas removal unit (501) and second acid gas removal unit (502); first methane removal unit (601) and a second methane removal unit (602); and a first steam source (701) and a second steam source (702).

[0321] Carbonaceous feedstock (10) is provided to a feedstock processing unit (100) and converted into carbonaceous particles (20) having an average particle size of less than about ...

Embodiment 2

[0323] exist figure 2 A second embodiment of the system of the present invention is illustrated in . Wherein, the system includes a single feedstock operation (100); a first catalyst loading unit (201) and a second catalyst loading unit (202); a first gasification reactor (301), a second gasification reactor (302) , the third gasification reactor (303) and the fourth gasification reactor (304); the first heat exchanger unit (401) and the second heat exchanger unit (402); the first acid gas removal unit (501) and a second acid gas removal unit (502); a first methane removal unit (601) and a second methane removal unit (602); and a single steam source (700).

[0324] Carbonaceous feedstock (10) is provided to a feedstock processing unit (100) and converted into carbonaceous particles (20) having an average particle size of less than about 2500 μm. The carbonaceous particles are supplied to a first catalyst loading unit (201) and a second catalyst loading unit (202), wherein t...

Embodiment 3

[0326] exist image 3 A third embodiment of the system of the present invention is illustrated in . Wherein, the system includes a single feedstock operation (100); a first catalyst loading unit (201) and a second catalyst loading unit (202); a first gasification reactor (301), a second gasification reactor (302) , the third gasification reactor (303) and the fourth gasification reactor (304); the first heat exchanger unit (401) and the second heat exchanger unit (402); the first acid gas removal unit (501) and the second acid gas removal unit (502); the first methane removal unit (601) and the second methane removal unit (602); the first trace pollutant removal unit (801) and the second trace pollutant removal unit ( 802); first acid shift unit (901) and second acid shift unit (902); first ammonia removal unit (1001) and second ammonia removal unit (1002); first converter (1101) and second conversion device (1102); CO 2 a recovery unit (1200); a sulfur recovery unit (1300)...

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Abstract

Systems to convert a carbonaceous feedstock into a plurality of gaseous products are described. The systems include, among other units, four separate gasification reactors for the gasification of a carbonaceous feedstock in the presence of an alkali metal catalyst into the plurality of gaseous products including at least methane. Each of the gasification reactors may be supplied with the feedstock from a single or separate catalyst loading and / or feedstock preparation unit operations. Similarly, the hot gas streams from each gasification reactor may be purified via their combination at a heat exchanger, acid gas removal, or methane removal unit operations. Product purification may comprise trace contaminant removal units, ammonia removal and recovery units, and sour shift units.

Description

field of invention [0001] The present invention relates to an architecture having four catalytic gasification reactors (ie, four trains) for the production of gaseous products, especially methane, by catalytic gasification of carbonaceous feedstock in the presence of steam. Background of the invention [0002] Due to many factors such as higher energy prices and environmental considerations, the production of value-added gaseous products from lower fuel value carbonaceous feedstocks such as biomass, coal and petroleum coke has received renewed attention. 催化气化这类物质以生成甲烷和其它增值气体例如公开在US3828474、US3998607、US4057512、US4092125、US4094650、US4204843、US4468231、US4500323、US4541841、US4551155、US4558027、US4606105、US4617027、US4609456、US5017282、US5055181、US6187465、 US6790430, US6894183, US6955695, US2003 / 0167961A1, US2006 / 0265953A1, US2007 / 000177A1, US2007 / 083072A1, US2007 / 0277437A1 and GB1599932. [0003] Generally, carbonaceous materials such as coal or petroleum coke can be converted into a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/00C07C1/00C10L3/08
CPCC01B2203/84C01B2203/048C01B3/52C10K1/14C10J2300/1807C10K1/004C01B2203/0405C01B2203/0485C10L3/102C01B2203/0894C01B3/34C10J2300/1675C10J3/00C10L3/10C01B2203/0205C10K1/101C01B2203/0465C10K1/103C01B2203/1241C10K1/143C10J2300/1884C10K1/007C01B2203/0415C10K1/20C10K1/003C10J3/721C10J2300/0906C10L3/08C01B2203/0475C10J2300/1687C10J2300/169C10K1/006C10J2300/0903C10J2300/1671C01B3/506C10J3/482C01B2203/046C10K1/16C10K1/102C10J2300/1853C10J2300/0916C10K1/32C10J2300/0973C01B3/501C10J2300/093C10K3/04C10J2300/0986C10J2300/1662C01B2203/042C10J2300/1823
Inventor E·T·罗宾逊F·S·刘D·多德森
Owner GREATPOINT ENERGY INC
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