MEMBRANE PROCESS AND SYSTEM FOR HIGH RECOVERY OF A NONPERMEATING GAS

• Main Author: HENRY DONALD E
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

A method for separating a raw feed gas stream using a plurality of membrane separation stages includes separating a pressurized feed gas stream into a first nonpermeate stream and a first permeate stream, compressing the first permeate stream to form a compressed first permeate stream, separating the compressed first permeate stream into a second nonpermeate stream and a second permeate stream, separating the second permeate stream into a third nonpermeate stream and a third permeate stream, combining the third nonpermeate stream with a raw feed gas stream to form a combined feed stream, compressing the combined feed stream to form a compressed combined feed stream, and combining the second nonpermeate stream with the compressed combined feed stream to form the pressurized feed gas stream. 一种用于使用多个膜分离级来分离原始进料气体流的方法，包含将加压的进料气体流分离成第一非渗透物流和第一渗透物流，压缩第一渗透物流以形成压缩的第一渗透物流，将压缩的第一渗透物流分离成第二非渗透物流和第二渗透物流，将第二渗透物流分离成第三非渗透物流和第三渗透物流，将第三非渗透物流与原始进料气体流合并以形成合并的进料流，压缩合并的进料流以形成压缩的合并的进料流，以及将第二非渗透物流与压缩的合并的进料流合并以形成加压的进料气体流。