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首页> 外文期刊>Fuel >Zero emissions of CO_2 during the production of liquid fuel from coal and natural gas by combining Fischer-Tropsch synthesis with catalytic dehydrogenation
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Zero emissions of CO_2 during the production of liquid fuel from coal and natural gas by combining Fischer-Tropsch synthesis with catalytic dehydrogenation

机译:费-托合成法与催化脱氢法相结合,从煤炭和天然气中生产液体燃料时,CO_2的零排放

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摘要

Synthesis gas (syngas) produced by coal gasification typically has H_2/CO molar ratios in the range of 0.5-1.0. Fischer-Tropsch synthesis (FTS) of liquid fuels requires syngas with H_2/CO > 2.0. Traditionally, this has achieved by the water-gas shift (WGS) reaction. In an earlier paper, it was shown that large reductions in CO_2 emissions can be achieved by producing the required H_2 by catalytic dehydrogenation (CDH) of the gaseous (C1-C4) products of FTS, rather than by the WGS reaction. In addition to producing pure H_2, CDH converts the C in (C1-C4) gases into multi-walled carbon nanotubes (MWCNT), a valuable by-product. The current paper builds on this concept. It is shown that zero emissions of CO_2 can be achieved by the FTS-CDH process if methane derived from natural gas is injected into the CDH reactor in appropriate amounts.
机译:由煤气化产生的合成气(合成气)通常具有在0.5-1.0范围内的H_2 / CO摩尔比。液体燃料的费托合成(FTS)需要H_2 / CO> 2.0的合成气。传统上,这是通过水煤气变换(WGS)反应实现的。在较早的论文中,研究表明,通过FTS气态(C1-C4)产物的催化脱氢(CDH)而不是WGS反应来生产所需的H_2,可以大大减少CO_2的排放。 CDH除了产生纯H_2外,还将(C1-C4)气体中的C转化为有价值的副产物多壁碳纳米管(MWCNT)。本论文基于此概念。结果表明,如果将来自天然气的甲烷以适当的量注入到CDH反应器中,则通过FTS-CDH工艺可以实现零二氧化碳排放。

著录项

  • 来源
    《Fuel》 |2013年第7期|206-210|共5页
  • 作者

    Gerald P. Huffman;

  • 作者单位

    Consortium for Fossil Fuel Science and Department of Chemical and Materials Engineering, University of Kentucky, 533 S. Limestone St., Lexington, KY 40506-0043, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Carbon dioxide; Hydrogen; Water; Fischer-Tropsch; Dehydrogenation;

    机译:二氧化碳;氢;水;费-托脱氢;

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