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1. 发明授权

US07311813B2 Distillation sequence for the purification and recovery of hydrocarbons 有权
标题翻译：纯化和回收烃的蒸馏顺序
公开(公告)号：US07311813B2
公开(公告)日：2007-12-25
申请号：US10393460
申请日：2003-03-20
申请人： Rian Reyneke , Michael Foral , Christos G. Papadopoulos , Jeffrey S. Logsdon , Wayne W. Y. Eng , Guang-Chung Lee , Ian Sinclair
发明人： Rian Reyneke , Michael Foral , Christos G. Papadopoulos , Jeffrey S. Logsdon , Wayne W. Y. Eng , Guang-Chung Lee , Ian Sinclair
IPC分类号： B01D3/02 , B01D3/06 , B01D3/14
CPC分类号： F25J3/0238 , B01D3/146 , C10G70/04 , C10G70/041 , C10G2400/20 , F25J3/0219 , F25J3/0242 , F25J3/0252 , F25J2200/38 , F25J2210/12 , F25J2215/62 , F25J2215/64
摘要： This invention is an improved distillation sequence for the separation and purification of ethylene from a cracked gas. A hydrocarbon feed enters a C2 distributor column. The top of the C2 distributor column is thermally coupled to an ethylene distributor column, and the bottoms liquid of a C2 distributor column feeds a deethanizer column. The C2 distributor column utilizes a conventional reboiler. The top of the ethylene distributor is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor feeds a C2 splitter column. The ethylene distributor column utilizes a conventional reboiler. The deethanizer and C2 splitter columns are also thermally coupled and operated at a substantially lower pressure than the C2 distributor column, the ethylene distributor column, and the demethanizer column. Alternatively, a hydrocarbon feed enters a deethanizer column. The top of the deethanizer is thermally coupled to an ethylene distributor column, and the ethylene distributor column utilizes a conventional reboiler. The top of the ethylene distributor column is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor column feeds a C2 splitter column. The C2 splitter column operates at a pressure substantially lower than the ethylene distributor column, the demethanizer column, and the deethanizer column.
摘要翻译：本发明是用于从裂化气体中分离和纯化乙烯的改进的蒸馏顺序。烃进料进入C2分配塔。 C2分配器柱的顶部热耦合到乙烯分配器柱，并且C2分配器塔的底部液体供给脱乙烷塔。 C2分配器柱使用常规的再沸器。乙烯分配器的顶部与脱甲烷塔热耦合，并且乙烯分配器的底部液体供给C2分离塔。乙烯分配塔利用常规的再沸器。脱乙烷塔和C2分离塔也可以以比C2分配塔，乙烯分配塔和脱甲烷塔更低的压力热耦合和操作。或者，烃进料进入脱乙烷塔。脱乙烷塔的顶部与乙烯分配塔热偶合，乙烯分配塔利用常规的再沸器。乙烯分配塔的顶部与脱甲烷塔热耦合，并且乙烯分配器塔的底部液体供应C2分离塔。 C2分离塔在基本上低于乙烯分配塔，脱甲烷塔和脱乙烷塔的压力下运行。

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