Strategies of lignite pyrolysis-gasification-oil system for CO<sub>2</sub> emission reduction

FAN Yang; LI Wenying; XIE Kechang

doi:10.11949/j.issn.0438-1157.20150795

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Strategies of lignite pyrolysis-gasification-oil system for CO₂ emission reduction

更新时间：2025-12-10

- Strategies of lignite pyrolysis-gasification-oil system for CO₂ emission reduction
- CIESC Journal Issue 8, Pages: 3204-3209(2015)
- 作者机构：
  
  太原理工大学, 煤科学与技术教育部和山西省重点实验室,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150795
  CLC： Q028.8
- Online First：05 August 2015，
  
  Published：05 August 2015
- 稿件说明：
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FAN Yang, LI Wenying, XIE Kechang. Strategies of lignite pyrolysis-gasification-oil system for CO₂ emission reduction[J]. CIESC Journal, 2015, (8): 3204-3209. DOI: 10.11949/j.issn.0438-1157.20150795.
DOI：

FAN Yang, LI Wenying, XIE Kechang. Strategies of lignite pyrolysis-gasification-oil system for CO₂ emission reduction[J]. CIESC Journal, 2015, (8): 3204-3209. DOI: 10.11949/j.issn.0438-1157.20150795. DOI：

摘要

褐煤热解-气化-制油系统是现代煤化工发展的一个重要研究内容。来自系统多个单元产生的CH4和CO2如果发生重整反应

将重整得到H2/CO比值较高的合成气添加到制油流程中

可实现更多的C被固定到产品中而减少CO2的直接排放量。对CH4-CO2和CH4-H2O两种重整反应方式、来自煤热解和费托合成两股甲烷气和典型的干粉气化和水煤浆气化两种流程进行了组合研究。分析结果显示

来自热解和费托合成的甲烷重整后不足以提供调节合成气H2/CO比例所需的氢气

水煤气变换反应对于褐煤制油系统来说是必需的。从C转化成油的角度来看

采用干粉气化和CH4-H2O重整的方案是较好的选择。

Abstract

CO2 emission reduction is an important aspect of advanced coal chemical engineering. The CH4-CO2 reforming is one of the important choices for CO2 cycling

while the CH4-H2O reforming is able to reduce the CO2 emission from the H2 production or the adjustment of the H/C ratio of syngas. The feedstock methane can be obtained from several units of the lignite-pyrolysis-gasification-oil system. Through CH4 reforming

high ratio of H2/CO syngas can be obtained and applied into the oil production system

more carbon would be fixed into the product and less CO2 is thus emitted. Two reforming reactions

two methane sources and two types of gasifier

namely typical dry powder entrained-flow gasifier and coal-water slurry entrained-flow gasifier

were investigated in this work. Results showed that methane from pyrolysis and Fischer-Tropsch synthesis is deficient in adjusting H2/CO ratio in the syngas

and the water gas shift reaction is necessary for lignite to oil system. In terms of carbon conversion to oil

the dry powder gasification-CH4-H2O reforming is the better choice.

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Strategies of lignite pyrolysis-gasification-oil system for CO2 emission reduction

DOI：10.11949/j.issn.0438-1157.20150795

摘要

Abstract

关键词

Keywords

references

Strategies of lignite pyrolysis-gasification-oil system for CO₂ emission reduction