Chemical Industry and Engineering Progress ›› 2024, Vol. 43 ›› Issue (5): 2494-2511.DOI: 10.16085/j.issn.1000-6613.2023-2126

• New and renewable energy • Previous Articles    

Gas-pressurized torrefaction of biomass: A review

SHI Liu1(), HU Zhenzhong1, LI Xian1(), SUN Yiming1, TONG Shan1, LIU Xianzhe1, GUO Li1,2,3, LIU Hao1, PENG Bing1, LI Shuo1, LUO Guangqian1, YAO Hong1   

  1. 1.State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
    2.Xinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830002, Xinjiang, China
    3.Institute of Metrology and Testing of Xinjiang Uygur Autonomous Region, Urumqi 830011, Xinjiang, China
  • Received:2023-12-01 Revised:2024-02-04 Online:2024-06-15 Published:2024-05-15
  • Contact: LI Xian

生物质气压烘焙技术研究进展

石鎏1(), 胡振中1, 李显1(), 孙一鸣1, 童珊1, 刘显哲1, 郭丽1,2,3, 刘豪1, 彭冰1, 李硕1, 罗光前1, 姚洪1   

  1. 1.华中科技大学能源与动力工程学院煤燃烧与低碳利用全国重点实验室,湖北 武汉 430074
    2.新疆大学化工 学院新疆煤炭清洁转化与化工自治区重点实验室,新疆 乌鲁木齐 830002
    3.新疆维吾尔自治区计量测试研究院,新疆 乌鲁木齐 830011
  • 通讯作者: 李显
  • 作者简介:石鎏(1995—),男,博士研究生,研究方向为能源化工及固体燃料燃烧。E-mail:liu_shi@hust.edu.cn
  • 基金资助:
    中国博士后科学基金(2023M731180);深圳华中科技大学研究院深圳科技计划(JSGG202011021534000001)

Abstract:

Gas-pressurized (GP) torrefaction has the advantages of mild reaction conditions, low energy consumption, high deoxygenation efficiency, high energy recovery efficiency, and semi-coke fuel quality similar as subbitumiunous coal. It is one of the novel technologies promising to replace the traditional torrefaction. This review introduces the development of GP torrefaction, reviews the optimization of GP torrefaction conditions (including the raw biomass type, temperature, pressure and time) and product composition and physicochemical properties, explains the macroscopic reaction pathways and microscopic reaction mechanisms, focuses on the combustion, pyrolysis and gasification utilisation pathways of semi-coke, reviews the reactor design and expansion in solid waste treatment such as chlorinated solid waste, sludge, etc. Finally, the GP torrefaction technology converting biomass into high fuel quality solid fuel which can directly replace coal is summarised and prospected.

Key words: biomass, gas-pressurized torrefaction, deoxygenation, optimization, product characteristics

摘要:

气压烘焙技术具备反应条件温和、能耗低、脱氧效率高、能量回收率高、半焦燃料品质近似次烟煤等优势,是一种有希望替代传统烘焙的新型技术之一。本文介绍了气压烘焙的发展脉络,综述了气压烘焙工况优化(包括原料种类、温度、压力、时间)、产物组成与理化特性,阐述了气压烘焙宏观反应路径和微观反应机理,着重介绍了半焦的燃烧、热解、气化利用途径,回顾了气压烘焙的反应器设计及其在含氯固废、污泥等处置中的拓展。最后对气压烘焙技术可将生物质转化为高品质固体燃料,直接替代煤炭进行了总结和展望。

关键词: 生物质, 气压烘焙, 脱氧, 优化, 产物特性

CLC Number: 

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