公开(公告)号：US20200370824A1

公开(公告)日：2020-11-26

申请号：US16421138

申请日：2019-05-23

申请人： Fluor Technologies Corporation

发明人： John MAK ,  Jacob THOMAS ,  Dhirav PATEL ,  Curt GRAHAM ,  Irene ZHANG

IPC分类号： F25J3/02

摘要： A method for removing heavy hydrocarbons from a feed gas by: feeding, into an absorber, a top reflux stream and a second reflux stream below the top reflux stream, wherein the absorber produces an absorber bottom product stream and an absorber overhead product stream; depressurizing and feeding the absorber bottom product stream to a stripper to produce a stripper bottom product stream and a stripper overhead product stream; cooling and feeding a portion of the absorber overhead product stream back to the absorber as the top reflux stream; and pressurizing and feeding the stripper overhead product stream back to the absorber as the second reflux stream. Systems for carrying out the method are also provided.