Research Progress on the Direct Synthesis of Aromatics From Syngas by Oxygen-Containing Intermediates
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.
NETL
NSTL
万方数据
