Catalytic pyrolysis of biomass model compounds to olefins and aromatic hydrocarbons

WANG Yun; SHAO Shanshan; ZHANG Huiyan; XIAO Rui

doi:10.11949/j.issn.0438-1157.20150637

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Catalytic pyrolysis of biomass model compounds to olefins and aromatic hydrocarbons

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- Catalytic pyrolysis of biomass model compounds to olefins and aromatic hydrocarbons
- CIESC Journal Issue 8, Pages: 3022-3028(2015)
- 作者机构：
  
  东南大学能源热转换及其过程测控教育部重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150637
  CLC： K6
- Online First：05 August 2015，
  
  Published：05 August 2015
- 稿件说明：
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WANG Yun, SHAO Shanshan, ZHANG Huiyan, et al. Catalytic pyrolysis of biomass model compounds to olefins and aromatic hydrocarbons[J]. CIESC Journal, 2015, (8): 3022-3028.
DOI：

WANG Yun, SHAO Shanshan, ZHANG Huiyan, et al. Catalytic pyrolysis of biomass model compounds to olefins and aromatic hydrocarbons[J]. CIESC Journal, 2015, (8): 3022-3028. DOI： 10.11949/j.issn.0438-1157.20150637.

摘要

采用愈创木酚作为生物质模型化合物

以ZSM-5为催化剂

在固定床反应器中研究了反应温度、质量空速以及分压对热解产物产率、选择性的影响

并考察了催化剂的积炭情况。结果表明

愈创木酚催化热解的主要产物为酚类

其次是芳香烃。温度对产物分布有显著影响。催化剂适量的积炭有利于提高烯烃和芳香烃的产率。根据愈创木酚催化热解反应产物分布

推测其主要反应为脱除甲氧基形成酚类

进一步芳构化形成芳香烃。本文研究结果为研究生物质催化热解反应机理提供了理论依据。

Abstract

Catalytic pyrolysis of guaiacol

as a model compound of biomass

was conducted over ZSM-5 in a fixed-bed reactor. The effects of temperature

weight hourly space velocity and partial pressure on the yield and the selectivity of product were investigated and the coked ZSM-5 were characterized. The results indicated that the main products of guaiacol catalytic pyrolysis were phenolic compounds

followed by aromatic hydrocarbons. Temperature has a significant influence on the product distribution. A certain amount of coke deposition on the catalyst is useful in improving the yield of olefins and aromatic hydrocarbons. Based on the product distribution

the catalytic reaction pathway was speculated to be the removal methoxy group to form phenols with further aromatization to form aromatic hydrocarbons. The results provide a theoretical basis for the research of the mechanism of biomass catalytic pyrolysis.

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