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Process for co-producing synthesis gas and power

一种合成气体、共同生产的技术，应用在气化工艺、氢/合成气生产、气体处理等方向，能够解决缺少大规模设备相集成等问题

Inactive Publication Date: 2012-05-02
SASOL TECHNOLOGY (PTY) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Opportunities for integrating nuclear heat sources with large-scale facilities for the production of carbon-based chemicals are thus felt to be lacking, in particular with synthesis gas generation processes

Method used

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  • Process for co-producing synthesis gas and power
  • Process for co-producing synthesis gas and power
  • Process for co-producing synthesis gas and power

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Embodiment Construction

[0048] with reference to the attached figure 1 , reference numeral 10 generally designates a process according to the invention for the co-production of synthesis gas and energy. Process 10 generally includes a synthesis gas generation stage 12, a nuclear reaction stage 14, and an air separation stage 16 including at least one ion transport membrane 16.1.

[0049] Process 10 also includes air compressor 18 , air heater 20 , oxygen compressor 22 , synthesis gas cooler 24 , synthesis gas waste heat boiler 26 , gas turboexpander 28 , and hydrocarbon synthesis stage 30 .

[0050] The nuclear reaction stage 14 utilizes a high temperature gas cooled nuclear reactor 32 with helium as a gas coolant circulating through the high temperature gas cooled nuclear reactor 32 . The nuclear reaction stage 14 may be a typical or conventional high temperature gas cooled nuclear reaction stage in which helium is operated in a closed helium cycle 34 at a pressure of 70 bar(g). In the figure, the...

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Abstract

A process (10) for co-producing synthesis gas and power includes in a synthesis gas generation stage (12), producing a synthesis gas (50) comprising at least CO and H2 by reacting a hydrocarbonaceous feedstock with oxygen, the synthesis gas being at a first temperature. Air is separated in an air separation stage (16) from a compressed air stream by means of at least one ion transport membrane unit (16.1 ) thereby producing a permeate stream (42) consisting predominantly of oxygen and a reject stream (44) of oxygen-depleted air at a second temperature which is lower than the first temperature. The reject stream (44) of oxygen-depleted air is heated indirectly with the synthesis gas (50) and at least partially expanded through at least one turbine (28) to generate power, producing an at least partially expanded reject stream of oxygen-depleted air (54). At least a portion of the permeate stream (42) consisting predominantly of oxygen is fed to the synthesis gas generation stage (12) to provide oxygen for production of synthesis gas.

Description

technical field [0001] The present invention relates to a process for the co-production of synthesis gas and energy. Background technique [0002] Synthetic gas consists of carbon monoxide (CO) and hydrogen (H 2 )mixture. Syngas is usually produced by one of two processes, either from a solid feedstock such as coal by gasification with oxygen and steam, or from a gaseous feedstock such as natural gas by gasification with oxygen (known as partial oxidation reforming) or Reforming production of water (known as steam reforming). A combination of partial oxidation reforming and steam reforming, ie autothermal reforming, is also commonly used. The oxygen required to produce synthesis gas is usually obtained from air using conventional cryogenic air separation techniques. The synthesis gas produced is used to produce a wide range of carbon-based chemicals such as methanol and liquid hydrocarbons via Fischer-Tropsch. [0003] The synthesis gas production process is energy inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/36C01B13/02C10G2/00
CPCC01B2203/84C01B2203/061F01K23/068C01B2203/062C01B2203/0233B01D2257/102C10G2/32Y02E20/18B01D2256/12C10J2300/1659C01B2203/0211F02C1/04C01B2203/0838G21D9/00C10J3/00C10J2300/0976C10J2300/093C01B2203/1241C01B2203/025C10J2300/1884C01B13/0251C01B2203/0244C10J2300/1678C01B3/36C01B2210/0046C01B2203/0227B01D53/229C10J2300/0959Y02P20/129F02C3/28
Inventor I·L·格里弗
Owner SASOL TECHNOLOGY (PTY) LTD
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