稻壳与玉米芯微波共热解协同效应研究

徐青; 张宗良; 冼圣贤; 李昊炜; 吴宇健; 李明

doi:10.12434/j.issn.2097-2547.20250369

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稻壳与玉米芯微波共热解协同效应研究

更新时间：2026-04-01

- 稻壳与玉米芯微波共热解协同效应研究
- Study on synergistic effects of microwave co-pyrolysis of rice husk and corn cob
- 低碳化学与化工 2026: 1-8.
- 作者机构：
  
  1.广东海洋大学海洋工程与能源学院，广东湛江 524088
  2.广东省南海海洋牧场智能装备重点实验室，广东湛江 524088
- 作者简介：
  
  徐青（1980—），博士，教授，研究方向为生物质能源利用，E-mail：xuqing-zj@163.com。
  冼圣贤（1994—），博士，讲师，研究方向为生物质材料能源化利用，E-mail：xianshengxian@gdou.edu.cn。
- 基金信息：
  
  国家自然科学基金面上项目(52476190;52376171);广东省基础与应用基础研究基金(2023A1515110541)
- DOI：10.12434/j.issn.2097-2547.20250369
  中图分类号： TK52
- 收稿：2025-09-14，
  
  修回：2025-10-24，
  
  网络首发：2026-03-24，
- 稿件说明：
移动端阅览
徐青,张宗良,冼圣贤等.稻壳与玉米芯微波共热解协同效应研究[J].低碳化学与化工,

XU Qing,ZHANG Zongliang,XIAN Shengxian,et al.Study on synergistic effects of microwave co-pyrolysis of rice husk and corn cob[J].Low-Carbon Chemistry and Chemical Engineering,
徐青,张宗良,冼圣贤等.稻壳与玉米芯微波共热解协同效应研究[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250369.

XU Qing,ZHANG Zongliang,XIAN Shengxian,et al.Study on synergistic effects of microwave co-pyrolysis of rice husk and corn cob[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250369.

摘要

农林固废的微波热解是实现生物质能高效转化的重要技术路径，对实现“双碳”目标具有关键支撑作用。为探究典型农林固废在微波热解过程中的协同效应，以我国资源丰富但堆积密度差异显著的稻壳和玉米芯为研究对象，利用微波热解平台和气相色谱-质谱（GC-MS）联用仪，在600 ℃、1250 W热解条件下，系统探究了单一原料的微波热解特性及二者的共热解协同效应。结果表明，稻壳和玉米芯的热解行为相似，热解油以含氧化合物为主。热解气中，CO

因羧基脱羧能垒最小（297 kJ/mol），在200 ℃即大量生成，其释放特性显著区别于H

、CO和CH

。共热解过程中存在显著协同效应，共热解的热解气产率实验值为48.3%，相较于理论值增大了7.56%，焦炭产率相较于理论值减小了6.93%。上述协同效应主要源于碱金属的催化作用、堆积密度差异以及挥发分与焦炭的交互反应。玉米芯灰分中碱金属的催化作用与物料堆积密度差异促进了稻壳和玉米芯热解和局部“热点”形成，进而促进了热解气释放。热解油与焦炭的交互反应通过脱水缩合路径增大了热解气产率及热解油的芳香度。

Abstract

Microwave pyrolysis of agricultural and forestry wastes is an important technological pathway for efficient biomass energy conversion and plays a key supporting role in achieving the “dual carbon” goal. To investigate the synergistic effects of microwave pyrolysis of typical agricultural and forestry wastes

rice husk and corn cob

which are abundant resources in China with significant difference in bulk densities

were selected as research objects. Using a microwave pyrolysis platform coupled with a gas chromatography-mass spectrometry (GC-MS) analyzer

the pyrolysis characteristics of the single raw materials and the synergistic effects of co-pyrolysis of the two were systematically explored under pyrolysis conditions of 600 ℃ and 1250 W. The results show that the pyrolysis behaviors of rice husk and corn cob are similar

and the pyrolysis oil is mainly composed of oxygenated compounds. In the pyrolysis gas

is generated in large quantities at 200 ℃ due to the lowest decarboxylation energy barrier of carboxyl groups (297 kJ/mol)

and its release characteristics are significantly different from those of H

CO and CH

. There are significant synergistic effects in co-pyrolysis. The experimental pyrolysis gas yield of co-pyrolysis is 48.3%

representing a 7.56% increase compared to the theoretical value

while the coke yield decreases by 6.93% compared to the theoretical value. The above synergistic effects m

ainly stem from the catalytic action of alkali metals

the differences in bulk density and the interaction reaction between volatile matter and char. The catalytic effects of alkali metals in corn cob ash and the differences in material bulk density promote the pyrolysis of rice husk and corn cob and the formation of local “hot spots”

thereby promoting the release of pyrolysis gas. The interaction reaction between pyrolysis oil and char via dehydration-condensation pathways increases pyrolysis gas yield and the aromaticity of pyrolysis oil.

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