Mechanism study of pyrolysis process and characteristics analysis of energy conversion of Gannan navel orange peel

LI Liqing; XUE Ruping; YU Sitong; GUO Yi; LIU Shuiying; TSANG Chiwing; OUYANG Shaobo; DENG Tao; WANG Quanbing; DU Linfeng

doi:10.12434/j.issn.2097-2547.20250004

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Mechanism study of pyrolysis process and characteristics analysis of energy conversion of Gannan navel orange peel

更新时间：2025-08-25

- Mechanism study of pyrolysis process and characteristics analysis of energy conversion of Gannan navel orange peel
- Vol. 50, Issue 8, Pages: 54-66(2025)
- 作者机构：
  
  1.江西理工大学材料冶金化学学部，江西赣州 341000
  2.香港高等教育科技学院建造、环境与工程学系，香港 999077
  3.江西同益高分子材料科技有限公司，江西赣州 341600
  4.信丰迅捷兴电路科技有限公司，江西赣州 341600
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250004
  CLC： TK6
- Received：04 January 2025，
  
  Revised：24 February 2025，
  
  Published：25 August 2025
- 稿件说明：
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李立清,薛茹萍,余思彤等.赣南脐橙皮热解过程的机理研究及能源转化特性分析[J].低碳化学与化工,2025,50(08):54-66.

LI Liqing,XUE Ruping,YU Sitong,et al.Mechanism study of pyrolysis process and characteristics analysis of energy conversion of Gannan navel orange peel[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(08):54-66.
李立清,薛茹萍,余思彤等.赣南脐橙皮热解过程的机理研究及能源转化特性分析[J].低碳化学与化工,2025,50(08):54-66. DOI： 10.12434/j.issn.2097-2547.20250004.

LI Liqing,XUE Ruping,YU Sitong,et al.Mechanism study of pyrolysis process and characteristics analysis of energy conversion of Gannan navel orange peel[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(08):54-66. DOI： 10.12434/j.issn.2097-2547.20250004.

摘要

赣南脐橙皮是典型的农林废弃物，其资源化利用与无害化处理对于环境保护和可持续发展具有重要意义。采用热重分析与固定床热解实验，系统探讨了升温速率、热解温度和反应时间对赣南脐橙皮热解性能的影响。通过Kissinger-Akahira-Sunose（KAS）、Ozawa-Flynn-Wall（OFW）和Friedman（FM）模型，获取了赣南脐橙皮热解动力学和热力学参数。此外

，采用SEM对热解生物炭形貌进行了表征，热解气体产物和液体产物分别通过GC与GC-MS进行了分析。热重结果表明，赣南脐橙皮热解主要发生在150~400 ℃，较大的升温速率导致热解过程存在热滞后现象，降低了反应效率。动力学结果表明，随着赣南脐橙皮转化率的增大，活化能（

）逐渐增大。热力学结果表明，升温速率越大，焓变（Δ

）和熵变（Δ

）越小，吉布斯自由能变（Δ

）越大，不利于反应进行。固定床热解实验结果表明，赣南脐橙皮最佳热解条件为反应温度500 °C、升温速率10 °C/min和反应时间1.0 h，此时热解气、热解液和生物炭产率分别为26.81%、47.27%和25.91%。热解气主要包含H

、CO和CO

，热解液主要包含醛类和酚类化合物，生物炭表面呈现大量不规则孔隙。综合分析表明，赣南脐橙皮具备较高的能源化潜力，为其资源化利用提供了理论依据。

Abstract

Gannan navel orange peel is a typical agricultural and forestry waste

and its resource utilization and harmless disposal are of significant importance for environmental protection and sustainable development. By thermogravimetric analysis and fixed-bed pyrolysis experiment

the effects of heating rate

pyrolysis temperature and reaction time on the pyrolysis performance of Gannan navel orange peel were systematically explored. The kinetic and thermodynamic parameters of Gannan navel orange peel pyrolysis were obtained by Kissinger-Akahira-Sunose (KAS)

Ozawa-Flynn-Wall (OFW) and Friedman (FM) models. Additionally

SEM was used to characterize the morphology of pyrolysis biochar

and the pyrolysis gas and liquid products were analyzed by GC and GC-MS

respectively. The thermogravimetric results indicate that Gannan navel orange peel pyrolysis primarily occurs from 150 ℃ to 400 ℃. The higher heating rate leads to thermal lag in the pyrolysis process

which reduces the reaction efficiency. The kinetic results show that as the Gannan navel orange peel conversion rate increases

the activation energy (

) increases. The thermodynamic results show that as the heating rate increases

the enthalpy change (Δ

) and entropy change (Δ

) decrease

and Gibbs free energy change (Δ

) increases

making the reaction less favorable. The fixed-bed pyrolysis experiment results show that the optimal pyrolysis con

ditions were reaction temperature of 500 ℃

heating rate of 10 ℃/min and reaction time of 1.0 h. At this time

the yields of pyrolysis gas

pyrolysis liquid and biochar are 26.81%

47.27% and 25.91%

respectively. The pyrolysis gas mainly includes H

and CO

and the pyrolysis liquid mainly includes aldehydes and phenolic compounds

and the biochar surface exhibits a large number of irregular pores. Overall

Gannan navel orange peel has high potential for energy conversion

providing a theoretical basis for its resource utilization.

关键词

Keywords

references

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Related Institution

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