合成气制混合燃料醇的研究进展

摘要

The conversion of syngas to mixed higher alcohols has attracted much attention in the field of energy and chemical engineering during the past decades. High performance catalysts and efficient separation process are key technologies for industrial large-scale application. This paper summarizes the latest research progress of process and catalyst for higher alcohols synthesis,in which catalytic systems including modified methanol catalysts,modified Fischer-Tropsch catalysts, MoS2-based catalysts and other catalysts are well reviewed. A promising route to improve catalytic performance in mixed higher alcohols synthesis is proposed by controlling the structure and composition of catalyst precisely,so as to increase stability and selectivities. The trend of conversion of syngas to mixed higher alcohols directly is also suggested by coupling of multi-reactions and processes.%合成气直接转化制混合燃料醇等清洁燃料是能源化工领域的研究热点，过程涉及醇合成和费托合成步骤，体系非常复杂，而高性能催化剂和高效分离工程的开发是混合燃料醇工艺大规模应用的关键技术。本文综述了合成气制混合燃料醇的典型反应工艺和当前催化剂的最新研究进展，系统总结了改性甲醇合成、改性费托合成、硫化物及其他类型催化剂体系的研究现状，指出通过调控活性相结构与组成、提高催化剂稳定性和产物中混合醇的选择性是合成气制混合醇催化剂的发展方向，提出了通过多反应、多过程耦合实现合成气定向转化制混合醇及C2+醇的应用前景。