摘要
芳烃作为重要的化工原料,目前主要经由石油重整和裂解制备.由合成气(CO加氢)直接转化制芳烃是一种新型的非石油芳烃制备路线,其中含氧中间体路线具有芳烃选择性高、甲烷选择性极低等优点.主要综述了合成气经含氧中间体制备芳烃的研究进展.重点论述了双功能催化剂中活性组分及其配比、分子筛结构和酸性、耦合方式等因素对反应过程的影响;并概述了CO和H2 解离、反应中间体、催化剂失活等反应机理.指出研制高活性和稳定性的催化剂用于提高含氧中间体路线的CO转化率和芳烃产物选择性,探索催化反应机理等仍然是未来研究的重点.
Abstract
As an important chemical raw material,aromatics are mainly prepared by petroleum reforming and cracking.The direct conversion of syngas(CO hydrogenation)to aromatics is a new preparation route of non-petroleum aromatics,where the oxygen-containing intermediate route has the advantages of high aromatics selectivity and low methane selectivity.The paper mainly reviews the research progress of the preparation of aromatics from syngas through oxygen-containing intermediates,primarily explores the effects of active components,ratio,molecular sieve structure,acidity and coupling modes of bi-functional catalysts on the reaction performances process,and summarizes the reaction mechanisms of CO and H2 dissociation,reaction intermediates,and catalyst deactivation.Finally,it is pointed that future research will still focus on the development of highly active and stable catalysts for improving CO conversion and the selectivity of aromatics products,and the exploration of the catalytic reaction mechanism.
基金项目
国家自然科学基金青年基金项目(21908117)
山东省重点研发计划(重大科技创新工程)项目(2021CXGC010803)
山东省技术创新引导计划(鲁渝科技协作)项目(2020LYXZ029)
山东省中央引导地方科技发展资金项目(YDZX2021058)
济南市"新高校20条"项目(2021GXRC053)
NETL
NSTL
万方数据