生物质制芳烃技术进展与发展前景

Development of aromatics production from biomass

对目前利用生物质生产芳烃几种路线以及研究进展进行评述。介绍了前景较好的代表性工艺,如:Anellotech公司开发的生物质热解制芳烃(Bio-AromaticsTM)工艺、Virent公司开发的生物基氢解糖类经过催化转化制PX(Bio-FormingTM)工艺以及Gevo公司开发的生物质异丁醇制芳烃工艺,并详细分析了各工艺的原料来源、工艺流程、工艺条件等特点。分析几种生物质芳烃工艺生产成本,并对照传统石脑油裂解重整制芳烃生产成本,分析各工艺经济性后,得出结论:Anellotech公司开发的生物质热解制芳烃工艺经济性成本与经济性最佳。在此基础上,提出今后生物质制芳烃的研究应当以提高原料利用效率、增加芳烃产率和选择性为重点,开发适合生物质转化反应的催化剂和反应器。

Research progress and production routes of aromatics from biomass are reviewed. Several promising representative processes, such as Bio-AromaticsTM developed by Anellotech which produces BTX by catalytic pyrolysis, BioFormingTM developed by Virent which produces BTX by catalysis of sugars and the process developed by Gevo which produces PX from bio-based isobutanol. Characteristics of above mentioned processes are analyzed, such as source of raw materials, process flow, process condition etc. Compared with production cost of traditional naphtha cracking process, production cost and economics of bio-aromatic processes are discussed. Bio-AromaticsTM process is most cost effective. Future research on bio-aromatics should focus on improvement of utilization efficiency of biomass and yield and selectivity of aromatics, and development of newly catalyst and reactor fit for conversion ofbiomass.