发挥炼油化工一体化优势 从炼厂干气回收乙烯和轻烃

Recovering Ethylene and Light Olefins from Refinery Dry Gas to Exploit Refining-Chemical Integration Advantages to the Full

提出了应发挥炼油化工一体化优势,回收炼厂催化和焦化干气中的乙烯和轻烃,增加乙烯产量,降低乙烯成本。介绍了中冷油吸收脱甲烷、低压深冷吸收脱甲烷和变压吸附分离3种工艺技术以及干气精制处理的过程和需特别关注的问题。

The article points out that the refiningchemical integration advantages should be exploited to the full via recovering the ethylene and light olefins in the refinery FCC and coking dry gas to increase ethylene output and reduce ethylene cost. It describes the three demethanizing processes of medium pressure absorption, low pressure cryogenic absorption and PSA, the dry gas treating process, and their technological emphasis.