Recovery of ethylene from dry gas and utilization of ethyl benzene are described, and it is pointed out that recovery of hydrogen by the membrane separation and production of styr...

• 指出炼油厂采用膜分离技术回收氢及用催化裂化干气中的乙烯生产苯乙烯,是合理利用石油副产物的有效途径。