公开(公告)号：US12151200B2

公开(公告)日：2024-11-26

申请号：US18399282

申请日：2023-12-28

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Gaurav Srivastava ,  Shubhra J Bhadra ,  Krishna Mani

IPC: B01D53/02 ,  B01D53/04 ,  B01D53/047

Abstract: A process is provided for purification of biogas to produce biomethane. The biogas is treated in a pressure swing adsorption unit to remove carbon dioxide and water. Other impurities including oxygen, hydrogen and carbon monoxide may be removed by an additional adsorption bed. The adsorption beds may be single stage or two-stage VPSA or PSA adsorption beds.

公开(公告)号：US10301558B1

公开(公告)日：2019-05-28

申请号：US16049144

申请日：2018-07-30

Applicant: UOP LLC

Inventor： Charles P. Luebke ,  Lin Jin ,  Christopher DiGiulio ,  Mark P. Lapinski

IPC: C10G63/00 ,  C10G69/00

Abstract: An integrated process for production of gasoline has been described. The process includes a C5-C6 isomerization zone, two C7 isomerization zones separate by a deisoheptanizer, and a reforming zone. The use of two C7 isomerization zones eliminates the need for the large recycle stream from the deisoheptanizer. The low temperature in first C7 isomerization zone favors the formation of multi-branched C7 paraffins and cyclohexanes and maximizes C5+ yield. The separation between paraffin and cycloalkane in deisoheptanizer becomes easier due to conversion of cycloalkanes to cyclohexanes in the first C7 isomerization zone. Further, the high temperature in second C7 isomerization zone favors the formation of higher octane cyclopentanes over cyclohexanes. An aromatic-containing stream can be introduced to second C7 isomerization zone. The saturation of the aromatics in the second C7 isomerization zone provides heat that increases the reactor outlet temperature in the isomerization reactors to favor cyclopentanes.

公开(公告)号：US11738319B2

公开(公告)日：2023-08-29

申请号：US17329591

申请日：2021-05-25

Applicant: UOP LLC

Inventor： James W. Harris ,  Parag Jain ,  Paul Adams ,  Michael J. Grapenthien ,  Louis A. Lattanzio ,  Priyank Tiwari ,  Charles P. Luebke ,  Zudtky Wisecraver ,  Christopher DiGiulio

IPC: B01J19/00 ,  C07B35/04 ,  B01J19/24 ,  G01N30/06 ,  G01N30/02

CPC classification number: B01J19/0013 ,  B01J19/0033 ,  B01J19/24 ,  C07B35/04 ,  G01N30/06 ,  G01N2030/025 ,  G01N2030/067

Abstract: A process and system for monitoring and controlling the operation of a dehydrogenation reactor is provided. Samples of hydrocarbon streams are taken at sampling locations to be analyzed at a single gas chromatograph or other analytical equipment. Actions can be taken to modify the operation of the dehydrogenation reactor as necessary to maintain its operation within predetermined parameters. In particular, actions may be taken when a hydrocarbon stream exhibits an amount of cracking that is outside parameters. It is usually intended that actions will be taken on a gradual basis once or twice per day to reduce the cost of the process while still providing the necessary changes to operations.

公开(公告)号：US20190127296A1

公开(公告)日：2019-05-02

申请号：US16178075

申请日：2018-11-01

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Clayton C. Sadler

IPC: C07C5/333 ,  B01J19/00

Abstract: Processes for dehydrogenation of a hydrocarbon feedstock are described. The process can be run at lower H2/HC ratios and lower RITs while maintaining coke production at the same level as operation at higher H2/HC ratios and higher RITs without decreasing the yield per pass. Acceptable levels of coke were achieved when operating the process at low hydrogen to hydrocarbon molar ratio in the range of 0.01 to 0.40 and reactor inlet temperatures in the range of 500°-645° C.

公开(公告)号：US10647636B2

公开(公告)日：2020-05-12

申请号：US16178260

申请日：2018-11-01

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Manuela Serban ,  Clayton C. Sadler

IPC: C07C5/333 ,  B01J35/02 ,  B01J8/02 ,  C07C5/48 ,  C07C7/04 ,  B01J19/00 ,  C07C11/06

Abstract: Processes for dehydrogenation of a hydrocarbon feedstock are described. The process can be run at lower H2/HC ratios and lower RITs while maintaining coke production at the same level as operation at higher H2/HC ratios and higher RITs without decreasing the yield per pass. Acceptable levels of coke were achieved when operating the process at low hydrogen to hydrocarbon molar ratio in the range of 0.01 to 0.40 and reactor inlet temperatures in the range of 500°-645° C. The process uses a low coke catalyst.

公开(公告)号：US20190127297A1

公开(公告)日：2019-05-02

申请号：US16178260

申请日：2018-11-01

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Manuela Serban ,  Clayton C. Sadler

IPC: C07C5/333 ,  C07C7/04

Abstract: Processes for dehydrogenation of a hydrocarbon feedstock are described. The process can be run at lower H2/HC ratios and lower RITs while maintaining coke production at the same level as operation at higher H2/HC ratios and higher RITs without decreasing the yield per pass. Acceptable levels of coke were achieved when operating the process at low hydrogen to hydrocarbon molar ratio in the range of 0.01 to 0.40 and reactor inlet temperatures in the range of 500°-645° C. The process uses a low coke catalyst.

公开(公告)号：US20240226798A1

公开(公告)日：2024-07-11

申请号：US18399282

申请日：2023-12-28

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Gaurav Srivastava

IPC: B01D53/047 ,  B01D53/04

CPC classification number: B01D53/0476 ,  B01D53/0462 ,  B01D2257/104 ,  B01D2257/108 ,  B01D2257/304 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2258/05

Abstract: A process is provided for purification of biogas to produce biomethane. The biogas is treated in a pressure swing adsorption unit to remove carbon dioxide and water. Other impurities including oxygen, hydrogen and carbon monoxide may be removed by an additional adsorption bed. The adsorption beds may be single stage or two-stage VPSA or PSA adsorption beds.

公开(公告)号：US20220379281A1

公开(公告)日：2022-12-01

申请号：US17329591

申请日：2021-05-25

Applicant: UOP LLC

Inventor： James W. Harris ,  Parag Jain ,  Paul Adams ,  Michael J. Grapenthien ,  Louis A. Lattanzio ,  Priyank Tiwari ,  Charles P. Luebke ,  Zudtky Wisecraver ,  Christopher DiGiulio

IPC: B01J19/00 ,  C07B35/04 ,  B01J19/24 ,  G01N30/06

Abstract: A process and system for monitoring and controlling the operation of a dehydrogenation reactor is provided. Samples of hydrocarbon streams are taken at sampling locations to be analyzed at a single gas chromatograph or other analytical equipment. Actions can be taken to modify the operation of the dehydrogenation reactor as necessary to maintain its operation within predetermined parameters. In particular, actions may be taken when a hydrocarbon stream exhibits an amount of cracking that is outside parameters. It is usually intended that actions will be taken on a gradual basis once or twice per day to reduce the cost of the process while still providing the necessary changes to operations.

公开(公告)号：US10995045B2

公开(公告)日：2021-05-04

申请号：US16154985

申请日：2018-10-09

Applicant: UOP LLC

Inventor： Christopher DiGiulio ,  Charles P. Luebke ,  David J. Shecterle

IPC: C07C5/327 ,  C07C2/56 ,  C07C5/27

Abstract: An alkylation process including an upfront isomerization zone is described. 100% n-butane or field butanes can be converted into a blend of approximately 60 wt % isobutane and 40 wt % n-butane in the isomerization zone. This blend can be used as the feed to all types of alkylation zones. It stabilizes the feed composition so that the dehydrogenation zone and alkylation zone always operate with the same feed.