耦合式循环移动床合成直链烷基苯

Production of Linear Alkylbenzens Using Liquid-Solid Circulating Moving Bed Reactor

研究了以改性β沸石作为催化剂 ,采用耦合式循环移动床作为反应器的一种新的直链烷基苯合成工艺。研究表明 ,此工艺可以有效放宽对催化剂单程寿命的限制 ,可不经过精制 ,直接采用工业苯和工业烯烃进行烷基化反应 ,实现了连续生产。同时可以进一步降低苯烯比 ,提高反应空速 ,大大降低设备投资和操作费用。

A new production technology for linear alkylbenzenes was investigated,using modified β zeolite as catalysts and liquid-solid circulating moving-bed as reactor.Linear alkylbenzenes can be produced from unrefined raw materials,and a continuous process can be realized with a lower ratio of benzene to olefin and a higher reaction space velocity.Furthermore,the effect of operation conditions on reaction was examined.