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    APPARATUSES AND PROCESSES FOR THE RECOVERY OF CARBON DIOXIDE STREAMS
    1.
    发明申请
    APPARATUSES AND PROCESSES FOR THE RECOVERY OF CARBON DIOXIDE STREAMS 有权

    公开(公告)号：US20230082135A1

    公开(公告)日：2023-03-16

    申请号：US17451983

    申请日：2021-10-22

    申请人： UOP LLC

    发明人： Bradley Russell ,  Kyle Cuellar ,  Eleftherios Adamopoulos ,  Mark Schott ,  Bhargav Sharma

    IPC分类号： C01B32/50 ,  B01D53/047 ,  B01D53/14 ,  B01D53/18 ,  F25J3/02

    摘要： Processes and apparatuses for recovering a high purity carbon dioxide stream. A first separation zone that may include a cryogenic fractionation column provides the high-purity CO2 stream. A vapor stream from the cryogenic fractionation column is passed to a second separation zone to separate the CO2 from the other components. The second separation zone may include a pressure swing adsorption unit or a solvent separation unit. The second separation zone provides a hydrogen enriched gas stream that may be used in a gas turbine. The second stream from the second separation zone includes carbon dioxide and, after a pressure increase in a compressor, may be recycled to the first separation zone.

    INTEGRATION OF NAPHTHA TO ETHANE AND PROPANE FRACTIONATION SECTION WITH ETHANE STEAM CRACKER
    2.
    发明公开
    INTEGRATION OF NAPHTHA TO ETHANE AND PROPANE FRACTIONATION SECTION WITH ETHANE STEAM CRACKER 审中-公开

    公开(公告)号：US20240190792A1

    公开(公告)日：2024-06-13

    申请号：US18508453

    申请日：2023-11-14

    申请人： UOP LLC

    发明人： Sudipta K. Ghosh ,  Xin X. Zhu ,  Kyle Cuellar

    IPC分类号： C07C4/04

    CPC分类号： C07C4/04

    摘要： A process of producing ethylene and propylene from naphtha, the process comprising: producing light paraffins—ethane, hydrogen/methane/residual ethane and propane rich streams—in a dividing wall fractionation column from a stream of hydrogen, methane, propane, and residual C4+ produced in the reactor section of a naphtha-to-ethane-and-propane processing unit by reacting naphtha with hydrogen, a naphtha reactor effluent stream produced by a naphtha reactor of the naphtha-to-ethane-and-propane processing unit is cooled to produce a feed stream. The feed stream is passed to a dividing wall fractionation column. An ethane stream from the dividing wall fractionation column is passed to an ethane steam cracker to produce a cracking heater effluent stream. The cracking heater effluent stream is passed to a coldbox of the ethane steam cracker after multiple steps such as quenching, compression, cooling, caustic scrubbing, drying. One or more fluids for cooling the naphtha (NEP) reactor effluent stream and for cooling the coldbox of the ethane steam cracker are provided by a common refrigeration system.

    ETHANE SEPARATION WITH CRYOGENIC HEAT EXCHANGER
    6.
    发明申请
    ETHANE SEPARATION WITH CRYOGENIC HEAT EXCHANGER 有权

    公开(公告)号：US20220316798A1

    公开(公告)日：2022-10-06

    申请号：US17671365

    申请日：2022-02-14

    申请人： UOP LLC

    发明人： Kyle Cuellar ,  Stephen T. King ,  Glen John Pomorski ,  Xin X. Zhu

    IPC分类号： F25J3/02

    摘要： A process and apparatus integrate a deethanizer column with a cryogenic heat exchanger by reboiling the deethanizer column with a refrigerant stream and/or cooling a deethanizer overhead line in the cryogenic heat exchanger. A single stage separator and a single deethanizer column may be used to obtain high purity hydrogen in the net gas stream and an ethane rich off-gas stream, whereas conventionally a dual stage separator and two deethanizer columns were necessary for equivalent purity, respectively.