Stage and system for compressing cracked gas

    公开(公告)号:US11560523B2

    公开(公告)日:2023-01-24

    申请号:US16339608

    申请日:2017-10-05

    摘要: A compression stage for the compression of cracked gas, the compression stage comprising a liquid separating means for separating liquid components from gaseous components of a cracked gas, a compressor connected to the liquid separating means, a gas cooling means connected to the compressor for cooling the compressed gas from the compressor, wherein the gas cooling means are cooled by a first cooling fluid from the cooling fluid source. The stage further comprises gas precooling means connected to the liquid separating means cracked gas, having an inlet for receiving the cracked gas.

    System and method for separation of propylene and propane

    公开(公告)号:US10766835B2

    公开(公告)日:2020-09-08

    申请号:US16330850

    申请日:2017-08-21

    摘要: A separation system for separating a feed stream comprising propylene and propane and a method for separating such feed stream. The separation system includes a distillation column for producing a light stream comprising propylene and a heavy stream comprising propane; a reboiler for reboiling a part of the first heavy stream to produce a boiled heavy stream; a condenser for cooling the light stream to produce a condensed light stream; and an absorption refrigerator for receiving water and providing chilled water, for receiving hot water from a waste heat source and providing a cooled hot water and for receiving cooling water and providing a heated cooling water. The absorption refrigerator is arranged such that the cooling of the water and the hot water occurs by the cooling water. The condenser is arranged such that the cooling of the light stream occurs by the chilled water from the absorption refrigerator.