摘要
以乙烯、丙烯和丁烯为主的低碳烯烃是重要的化工基础原料,由合成气一步法直接催化制取低碳烯烃路线因其流程短、能耗低等优势,已成为非石油路线生产低碳烯烃的主要发展方向,其主要包括经费托合成反应制备低碳烯烃的路线(FTO)和基于金属氧化物/分子筛(OX-ZEO)双功能催化剂体系的路线(SDTO)。本工作综述了近年来在合成气制备低碳烯烃方面的研究进展,重点阐述了OX-ZEO双功能催化剂的设计、不同活性位点的耦合制备方法、催化剂表界面调控对其催化性能的影响,详细解析了H_(2)/CO比、温度、压力、接触时间等反应条件对SDTO反应的调控机制,概括了现代表征技术在揭示OX-ZEO催化反应机理中的应用,同时总结了OX-ZEO的催化反应机理。最后对OX-ZEO双功能催化路径目前存在的挑战和未来的发展进行了展望。
The light olefins,mainly ethylene,propylene and butene,are basic building blocks in chemical industry.The direct conversion of syngas to lower olefins considered as a new significant and attractive process for producing lower olefins from non-petroleum resources,owing to its process simplicity and low energy consumption.The light olefins can be directly produced from syngas via two routes,namely,the Fischer-Tropsch to olefins(FTO)reaction and oxide-zeolite(OX-ZEO)bifunctional catalysis strategy(SDTO).This paper mainly reviews recent developments of SDTO,with emphasis on the effects of catalyst design,catalyst preparation and interphase renovation on reactivity.The targeting control of operating parameters such as H_(2)/CO ratio,temperature,pressure and contact for higher production of light olefins has also been clarified.Applications of new in situ,in real-time techniques to identify the structure-function relationship and the reaction mechanism are summarized.The recent progress including the applications of new in situ,real-time techniques to identify the structure-function relationship and the reaction mechanism are reviewed in detail.With this,the authors put forward insights into significant promising tendencies and confronting challenges in the strategy of OX-ZEO.
作者
皂辉杰
姚金刚
刘静
陈冠益
易维明
熊加林
ZAO Hui-jie;YAO Jin-gang;LIU Jing;CHEN Guan-yi;YI Wei-ming;XIONG Jia-lin(School of Agricultural Engineering and Food Science,Shandong University of Technology,Zibo 255000,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;Shandong Research Center of Engineering&Technology for Clean Energy,Zibo 255000,China;School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China;Huaneng(Zhejiang)Energy Development Co.,LTD.Yuhuan Branch,Yuhuan 317604,China)
出处
《燃料化学学报（中英文）》
EI
CAS
CSCD
北大核心
2023年第1期19-33,共15页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(52006129,51906129)
山东省自然科学基金(ZR2020QE205)
广东省新能源和可再生能源研究开发与应用重点实验室(E039kf0701,E239kf0401)资助。
关键词
低碳烯烃
合成气
费托合成
双功能催化剂
反应机理
light olefin
syngas
Fischer-Tropsch synthesis
bifunctional catalyst
reaction mechanism
