摘要
介绍了燕山乙烯低排放停车快速倒空方法,针对碳三以上的液相物料采用水洗法——将系统内填充的物料用水替代出来,将物料送至罐区储存;对于碳三及碳三以下物料,丙烯制冷系统内的丙烯用丙烯回收流程回收,丙烯精馏塔内的物料利旧停用泵,加快塔内物料外送速度;其它部分主要采用汽化放火炬,并用火炬气压缩机回收作为裂解炉烧焦燃料的方法。该方案在实际实施过程中取得了预期效果,对不足之处提出了进一步优化方案。
This paper introduces low emission shutdown quick emptying method used for the ethylene plant in Yanshan. For liquid-phase materials heavier than C3,water wash method is used to displace the materials in system with water and sent the materials to tank farm for storage. For C3 and lighter materials,propylene recovery process is used to recover the propylene in propylene refrigeration system,and an existing pump,which was out of service,is put into use again to expedite the delivery speed of materials in propylene distillation column. Other materials are vented via flare after vaporization and recovered with flare gas compressor as burning fuel for cracking furnaces. This method obtained expected results in practical implementation,but there were still some shortcomings. A scheme for further optimization is put forward.
出处
《乙烯工业》
CAS
2013年第3期10-16,6,共7页
Ethylene Industry
关键词
乙烯
顺序分离
停车快速倒空
物料回收
低排放
Ethylene
Sequential separation
Shutdown quick emptying
Material recovery
Low emission
