METHODS AND SYSTEMS USING A REACTOR EFFLUENT EXPANDER FOR OLEFIN PRODUCTION

    公开(公告)号:US20210179516A1

    公开(公告)日:2021-06-17

    申请号:US16761685

    申请日:2018-11-13

    IPC分类号: C07C5/327 C07C4/04 B01J19/00

    摘要: Methods and systems for improving energy conversion from the heat available in a hydrocarbon feedstream during the production of olefins. In a particular non-limiting embodiment, a method can include increasing the temperature of a hydrocarbon feedstream and a hydrogen gas feedstream via a first heat exchanger; combining and feeding the feedstreams into a reactor to produce a reactor effluent including one or more olefins; expanding the reactor effluent in a reactor effluent expander to decrease the pressure and/or temperature of the reactor effluent; transferring the reactor effluent to the heat exchanger to increase the temperature of the feedstreams and/or decrease the temperature of the reactor effluent; and compressing the reactor effluent in a compressor, where the expansion of the reactor effluent drives the compressor.

    METHODS AND SYSTEMS FOR OLEFIN PRODUCTION
    3.
    发明申请

    公开(公告)号:US20200290939A1

    公开(公告)日:2020-09-17

    申请号:US16650069

    申请日:2018-11-12

    IPC分类号: C07C4/04 B01J19/00 B01J12/00

    摘要: Methods and systems for improving energy conversion from the heat available in a hydrocarbon feedstream during the production of olefins. In a particular non-limiting embodiment, the method can include increasing the temperature of a hydrocarbon feedstream and a hydrogen gas feedstream via a first heat exchanger; combining the feedstreams and expanding the combined feedstream in an expander to decrease the pressure and/or temperature of the combined feedstream; increasing the temperature of the combined feedstream via a second heat exchanger; feeding the combined feedstream into a reactor to produce a reactor effluent; decreasing the temperature of the reactor effluent; and compressing the reactor effluent in a compressor, where the expansion of the combined feedstream drives the compressor.

    STAGE AND SYSTEM FOR COMPRESSING CRACKED GAS

    公开(公告)号:US20200040267A1

    公开(公告)日:2020-02-06

    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.

    PROCESS AND A SYSTEM FOR GENERATING HYDROCARBON VAPOR

    公开(公告)号:US20190241819A1

    公开(公告)日:2019-08-08

    申请号:US16339628

    申请日:2017-10-04

    IPC分类号: C10G31/06 C10G7/00 C10G9/36

    CPC分类号: C10G31/06 C10G7/00 C10G9/36

    摘要: A process for vaporizing hydrocarbon feedstock comprising pressurizing the hydrocarbon feedstock using a hydrocarbon feedstock pump, preheating the hydrocarbon feedstock in a first heat exchanger and distilling the preheated hydrocarbon feedstock in in a medium pressure distillation column connected to the first heat exchanger, and wherein the medium pressure distillation column is operated at a pressure in a range of 0.7 to 1.2 MPa. A system for producing hydrocarbon vapor, comprising a hydrocarbon feedstock pump for pressurizing hydrocarbon feedstock, a first heat exchanger connected to the hydrocarbon feedstock pump, and a medium pressure distillation column connected to the heat exchanger for distilling the heated hydrocarbon feedstock at medium pressure in a range of 0.7 to 1.2 MPa.

    SYSTEM AND METHOD FOR SEPARATION OF PROPYLENE AND PROPANE

    公开(公告)号:US20190202757A1

    公开(公告)日:2019-07-04

    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.

    PROCESS FOR CRACKING HYDROCARBON STREAM USING FLUE GAS FROM GAS TURBINE

    公开(公告)号:US20190284484A1

    公开(公告)日:2019-09-19

    申请号:US16318339

    申请日:2017-07-24

    IPC分类号: C10G9/36 F02C6/18

    摘要: A process for cracking a hydrocarbon stream by: combusting fuel in a gas turbine in the presence of compressed air to produce a flue gas, wherein the flue gas drives a turbine to produce electricity in a coupled generator or work to power a coupled rotating equipment; (a) feeding a first portion of the flue gas to a heat exchanger; (b) feeding ambient air to the heat exchanger to be heated by the first portion of the flue gas to provide heated air; (c) feeding a furnace with fuel and a mixture of a second portion of the flue gas and the heated air obtained by step (c) and (d) cracking the hydrocarbon stream in the furnace.