公开(公告)号：US20220194789A1

公开(公告)日：2022-06-23

申请号：US17594190

申请日：2020-04-22

Applicant: HALDOR TOPSØE A/S

Inventor： Steffen Spangsberg CHRISTENSEN ,  Arunabh SAHAI

IPC: C01B3/40 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B3/56 ,  B01J23/06 ,  B01J21/04 ,  B01J19/24 ,  B01D53/22 ,  B01D53/14 ,  F25J3/06

Abstract: A plant and process for producing a hydrogen rich gas are provided, said process comprising the steps of: reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O; shifting said synthesis gas in a shift configuration including a high temperature shift step; removal of CO2 upstream hydrogen purification unit, such as a pressure swing adsorption unit (PSA), and recycling off-gas from hydrogen purification unit and mix it with natural gas upstream prereformer feed preheater, prereformer, reformer feed preheater or ATR or shift as feed for the process.

公开(公告)号：US20210269307A1

公开(公告)日：2021-09-02

申请号：US17274654

申请日：2019-09-26

Applicant: HALDOR TOPSØE A/S

Inventor： Peter Mølgaard MORTENSEN ,  Arunabh SAHAI

IPC: C01B3/50 ,  C01B3/52 ,  C01B3/56

Abstract: A method for increasing the carbon utilisation of a synthesis gas plant is provided, as well as a synthesis gas plant arranged to perform said method. Various gas streams can be combined and recycled to allow for efficient use of a natural gas feedstock.

公开(公告)号：US20240059563A1

公开(公告)日：2024-02-22

申请号：US17767999

申请日：2020-09-18

Applicant: HALDOR TOPSØE A/S

Inventor： Steffen Spangsberg CHRISTENSEN ,  Arunabh SAHAI

IPC: C01B3/48 ,  C01B3/38

CPC classification number: C01B3/48 ,  C01B3/382 ,  C01B2203/0244 ,  C01B2203/0288 ,  C01B2203/043 ,  C01B2203/0495 ,  C01B2203/0827 ,  C01B2203/1076 ,  C01B2203/142 ,  C01B2203/145

Abstract: A plant and process for producing a hydrogen rich gas are provided, said process comprising the steps of: reforming a hydrocarbon feed in a reforming step using an autothermal reformer (ATR) thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O; shifting said synthesis gas in a shift configuration including a high temperature shift step; passing the shifted syngas to a first hydrogen purification unit, e.g. a PSA unit; passing a portion of the off-gas from the first hydrogen purification unit to a second hydrogen purification unit, and using off-gas from the first and second hydrogen purification unit as e.g. fuel for a preheater unit before the ATR.

公开(公告)号：US20250066193A1

公开(公告)日：2025-02-27

申请号：US18947458

申请日：2024-11-14

Applicant: HALDOR TOPSØE A/S

Inventor： Steffen Spangsberg CHRISTENSEN ,  Arunabh SAHAI

IPC: C01B3/40 ,  B01D53/00 ,  B01D53/047 ,  B01D53/14 ,  B01D53/22 ,  B01J19/24 ,  B01J21/04 ,  B01J23/06 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B3/56 ,  F25J3/06

Abstract: A plant and process for producing a hydrogen rich gas are provided, the process including the steps of: reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas including CH4, CO, CO2, H2 and H2O; shifting the synthesis gas in a shift configuration including a high temperature shift step; removal of CO2 upstream hydrogen purification unit, such as a pressure swing adsorption unit (PSA), and recycling off-gas from hydrogen purification unit and mix it with natural gas upstream prereformer feed preheater, prereformer, reformer feed preheater or ATR or shift as feed for the process.

公开(公告)号：US20230271829A1

公开(公告)日：2023-08-31

申请号：US18006586

申请日：2021-08-16

Applicant: HALDOR TOPSØE A/S

Inventor： Steffen Spangsberg CHRISTENSEN ,  Arunabh SAHAI ,  Kim AASBERG-PETERSEN

IPC: C01B3/38 ,  C01B3/48

CPC classification number: C01B3/382 ,  C01B3/48 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/0288 ,  C01B2203/148 ,  C01B2203/0822 ,  C01B2203/1628 ,  C01B2203/146 ,  C01B2203/1264 ,  C01B2203/1241 ,  C01B2203/0475 ,  C01B2203/142

Abstract: A plant and process for producing a hydrogen rich gas and improved carbon capture are provided, said process comprising the steps of: reforming a hydrocarbon feed by optional prereforming, autothermal reforming (ATR), yet no primary reforming, thereby obtaining a synthesis gas; shifting said synthesis gas in a shift section including a high temperature shift step; removal of CO2 upstream hydrogen purification unit, thereby producing a hydrogen rich stream and an off-gas stream, and where at least part of the off-gas stream is recycled to the process, thus to the ATR and optional prereforming, and/or to the shift section.