催化裂化干气直接加工利用是炼厂副产气体综合利用的重要内容。
The direct utilization of FCC of-gas is of importance for by-product comprehensive use in refinery.
目前国内乙烯资源短缺，从催化裂化干气中提取乙烯是减少浪费、提高乙烯产量的有效途径。
The source of ethylene is insufficient at present in China. Extraction of ethylene from catalytic cracking dry gas is an efficient means to reduce waste and increase the output of ethylene.
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。
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...
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