气氛热预处理对胜利褐煤组成、结构及快速热解特性影响

白柏杨; 孙鸣; 强路遥; 马晓迅

doi:10.12434/j.issn.2097-2547.20250342

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气氛热预处理对胜利褐煤组成、结构及快速热解特性影响

更新时间：2026-02-12

- 气氛热预处理对胜利褐煤组成、结构及快速热解特性影响
- Influence of atmospheric thermal pretreatment on compositions, structures and fast pyrolysis characteristics of Shengli lignite
- 低碳化学与化工 2026: 1-10.
- 作者机构：
  
  1.渭南师范学院化学与材料学院，陕西渭南 714099
  2.西北大学化工学院，陕西西安 710127
  3.西安石油大学化学化工学院，陕西西安 710065
- 作者简介：
  
  白柏杨（1994—），博士，讲师，研究方向为低变质煤清洁高效转化利用，E-mail：baiboyang12315@163.com。
  马晓迅（1957—），博士，教授，研究方向为低变质煤清洁高效转化利用，E-mail：maxym@nwu.edu.cn。
- 基金信息：
  
  陕西省教育厅科研计划(24JK0447);国家自然科学基金(21536009;22078266)
- DOI：10.12434/j.issn.2097-2547.20250342
  中图分类号： TQ53
- 收稿：2025-08-16，
  
  修回：2025-09-10，
  
  网络首发：2026-02-12，
- 稿件说明：
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白柏杨,孙鸣,强路遥等.气氛热预处理对胜利褐煤组成、结构及快速热解特性影响[J].低碳化学与化工,

BAI Boyang,SUN Ming,QIANG Luyao,et al.Influence of atmospheric thermal pretreatment on compositions, structures and fast pyrolysis characteristics of Shengli lignite[J].Low-Carbon Chemistry and Chemical Engineering,
白柏杨,孙鸣,强路遥等.气氛热预处理对胜利褐煤组成、结构及快速热解特性影响[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250342.

BAI Boyang,SUN Ming,QIANG Luyao,et al.Influence of atmospheric thermal pretreatment on compositions, structures and fast pyrolysis characteristics of Shengli lignite[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250342.

摘要

煤的热解是煤炭清洁高效转化利用的必经之路，探究煤的理化结构对其热解行为的影响具有重要意义。利用CH

与H

气氛分别对胜利褐煤（SL）进行了热预处理，对其气氛热处理前后的结构进行了系统的表征，并在流化床反应器中进行了快速热解实验，探究了SL结构变化对其热解行为的影响。结果表明，气氛热预处理脱除了SL的部分含氧官能团，降低了O/C原子数量比，破坏了交联结构，降低了热解活泼阶段（400~480 ℃）所需活化能，有利于热解焦油生成。同时，部分弱化学键在气氛热预处理过程中断裂，导致热解气体产率降低，半焦产率升高，且轻质

焦油含量降低。CH

气氛可抑制气氛热预处理过程中脂肪侧链断裂；H

气氛更易促进SL中含氧官能团分解和煤大分子结构解聚，从而提高热解焦油产率。

Abstract

The pyrolysis of coal is an inevitable path for the clean and efficient conversion and utilization of coal. Exploring the influence of the physical and chemical structures of coal on its pyrolysis behavior is of great significance. The Shengli lignite (SL) was subjected to thermal pretreatment in CH

and H

atmospheres respectively

and the structures before and after the atmospheric thermal treatment were systematically characterized

and fast pyrolysis experiments were conducted in a fluidized bed reactor. The influence of structural changes of SL on its pyrolysis behavior is explored. The results show that the atmospheric thermal pretreatment removes some oxygen-containing functional groups of SL

reduces the ratio of the number of O/C atoms

breaks the cross-linked structure

lowers the activation energy required in the active stage of pyrolysis (400~480 ℃)

and is conducive to the generation of pyrolysis tar. Meanwhile

some weak chemical bonds break during the atmospheric thermal pretreatment process

resulting in a decrease in the yield of pyrolysis gas

an increase in the yield of semi-coke

and a decrease in the content of light tar. CH

atmosphere can inhibit the breakage of aliphatic side chains during the atmospheric thermal pretreatment process

and H

atmosphere is more conducive to the decomposition of oxygen-containing groups in SL and depolymerization of the macromolecular structure of coal to increase the yield of pyrolysis tar.

关键词

Keywords

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