公开(公告)号：US20240360054A1

公开(公告)日：2024-10-31

申请号：US18577454

申请日：2022-06-22

申请人： Brian HEINS ,  Paul HAMILTON ,  Jason GIAQUINTO ,  Cade HODGSON ,  Heather GILLIGAN ,  ExxonMobil Chemical Patents Inc.

发明人： Brian Heins ,  Paul Hamilton ,  Jason Giaquinto ,  Cade Hodgson ,  Heather Gilligan

IPC分类号： C07C7/04 ,  B01D1/28 ,  B01J3/00

CPC分类号： C07C7/04 ,  B01D1/2843 ,  B01D1/2881 ,  B01J3/008

摘要： An ethylene recycle method may include: obtaining an overheads stream comprising ethylene in a first gaseous state from an ethylene purification column; heating the overheads stream in a first heat exchanger to produce a heated overheads stream comprising the ethylene in a second gaseous state; compressing the heated overheads stream to yield a compressed ethylene stream comprising the ethylene in a first supercritical state; cooling the compressed ethylene stream to produce a cooled, compressed ethylene stream comprising the ethylene in a first liquid state, wherein the cooling comprises passing the compressed ethylene through the first heat exchanger; reducing the pressure of the cooled, compressed ethylene stream to produce a first recycle stream comprising the ethylene in a second liquid state and optionally a third gaseous state; and introducing the first recycle stream into the ethylene purification column.