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.
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.
基金项目
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)
维普
万方数据