基于回收理念的生物质燃气焦油脱除研究进展  

Biomass producer gas tar removal technology based on recovery idea

作　　者：吴娟[1] 陈海军[1] 朱跃钊[1] 廖传华[1] 杨丽[2] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏省过程强化与新能源装备技术重点实验室,江苏南京211816 [2]南京工业大学环境学院,江苏南京211816

出　　处：《化工进展》2013年第9期2099-2105,2111,共8页Chemical Industry and Engineering Progress

基　　金：江苏省高校自然科学研究重大项目(11KJA480003);江苏省建筑节能专项项目(苏财建[2008]284号)

摘　　要：生物质气化是重要的可再生能源方式。焦油是生物质气化过程大规模工业化的主要障碍之一。为了提高生物质燃气用于内燃机和燃气轮机发电以及甲醇合成的效率,燃气中的焦油必须深度脱除至低于20 mg/m3。本文简述了焦油污染和堵塞燃气下游设备的危害,介绍了焦油的特征和分类,分析了基于回收过程的焦油脱除方法优势,评述了回收法焦油脱除的研究进展,阐述了水洗和油洗回收脱焦的典型应用实例。指出了以油洗回收法为基础,将焦油和微孔材料的孔径进行匹配,高集成度的吸附和膜分离多级耦合焦油深度脱除工艺,将成为脱除生物质燃气焦油的主要发展方向。Biomass gasification is an interesting technology in the future development of a worldwide sustainable energy system,as an alternative to fossil fuels.Tar is one of the main barriers to biomass gasification technology in its commercial application as a source of renewable energy.To achieve better efficiency of the biomass producer gas applications,tar must be removed to lower than 20 mg/m3 before the gas is used for downstream internal combustion engines,gas turbines,and in particular for methanol synthesis.In this paper,tar fouling and blocking problems in downstream equipments using the biomass producer gas are presented.Tar definition and classification are described.Advantages of tar reduction based on recovery idea（secondary methods,or named as mechanical/physical method） are analyzed.The new technologies in term of biomass tar removal based on recovery idea are reviewed.The representative biomass gasification technologies,which have lately been successfully demonstrated or commercialized,using the water or oil scrubber recovery method to remove tar,are also discussed.In addition,the future main research areas and potential applications of the advanced multi-stage adsorption or membrane separation for tar deep removal,based on oil-based gas washer（OLGA）,and integrating appropriate pore size corresponding to different tar molecules,are presented.

关 键 词：生物质气化 燃气 焦油 回收 脱除 

分 类 号：TK6[动力工程及工程热物理—生物能]