公开(公告)号：US20230203385A1

公开(公告)日：2023-06-29

申请号：US17970547

申请日：2022-10-20

Applicant: UOP LLC

Inventor： Steven C. Kozup ,  Michael R. Van de Cotte ,  Adam J Kanyuh

IPC: C10G11/18 ,  B01J8/18

CPC classification number: C10G11/187 ,  B01J8/1809 ,  B01J2208/00646 ,  C10G2400/20 ,  C10G2400/22 ,  C10G2300/4031

Abstract: A start-up method for contacting a feed stream with fluidized catalyst is disclosed. The start-up method comprises reacting a feed stream over a catalyst to produce a gas stream and spent catalyst. The gas stream is separated from the spent catalyst. The separated gas stream is passed to a compressor. The operating condition associated with the compressor is measured. Based on the measured operating condition associated with the compressor, one or both of a supplemental hydrocarbon stream and a supplemental hydrogen gas stream is provided to the compressor to meet a predetermined operating condition associated with the compressor.

公开(公告)号：US12012557B2

公开(公告)日：2024-06-18

申请号：US17970547

申请日：2022-10-20

Applicant: UOP LLC

Inventor： Steven C. Kozup ,  Michael R. Van de Cotte ,  Adam J Kanyuh

IPC: B01J8/18 ,  C10G11/18

CPC classification number: C10G11/187 ,  B01J8/1809 ,  B01J2208/00646 ,  C10G2300/4031 ,  C10G2400/20 ,  C10G2400/22

Abstract: A start-up method for contacting a feed stream with fluidized catalyst is disclosed. The start-up method comprises reacting a feed stream over a catalyst to produce a gas stream and spent catalyst. The gas stream is separated from the spent catalyst. The separated gas stream is passed to a compressor. The operating condition associated with the compressor is measured. Based on the measured operating condition associated with the compressor, one or both of a supplemental hydrocarbon stream and a supplemental hydrogen gas stream is provided to the compressor to meet a predetermined operating condition associated with the compressor.

公开(公告)号：US11447707B2

公开(公告)日：2022-09-20

申请号：US17131453

申请日：2020-12-22

Applicant: UOP LLC

Inventor： Adam J Kanyuh

IPC: C10G49/22 ,  F25J3/02

Abstract: A process for recovering hydrogen from dehydrogenation reactor effluent is disclosed. A feed stream comprising hydrocarbons and hydrogen to a dehydrogenation reactor maintained at dehydrogenation conditions to provide a dehydrogenation reactor effluent. The dehydrogenation reactor effluent is passed to a cold box separation unit to provide a liquid hydrocarbon product stream and a recycle hydrogen stream. A return portion of the recycle hydrogen stream is passed to the reactor effluent compressor. The subject matter disclosed improved process and apparatus which enables the paraffin dehydrogenation reactor to run at reduced H2/HC ratio without requiring an investment in a resized compressor or resized turboexpanders or separators in the cold box.