公开(公告)号：US20240270572A1

公开(公告)日：2024-08-15

申请号：US18568828

申请日：2022-06-13

申请人： SHELL USA, INC.

发明人： Ronald Jan SCHOONEBEEK ,  Dominik Johannes Michael UNRUH ,  Alouisius Nicolaas Renée BOS

IPC分类号： C01B3/16 ,  B01D53/14 ,  C01B3/52

CPC分类号： C01B3/16 ,  B01D53/1475 ,  C01B3/52 ,  B01D2252/204 ,  B01D2256/16 ,  B01D2257/504 ,  C01B2203/0475 ,  C01B2203/0495 ,  C01B2203/0805 ,  C01B2203/0883 ,  C01B2203/148

摘要： The present invention relates to a method for producing syngas using a catalytic reverse water gas shift (RWGS) reaction, the method at least comprising the steps of: a) providing a feed stream (10) comprising at least hydrogen (H2) and carbon dioxide (CO2); b) heating the feed stream (10) provided in step a) in a first heat exchanger (3) thereby obtaining a first heated feed stream (20); c) introducing the first heated feed stream (20) into a RWGS reactor (2) and subjecting it to a catalytic RWGS reaction, thereby obtaining a syngas containing stream (30); d) cooling the syngas containing stream (30) obtained in step c) in the first heat exchanger (3) against the feed stream (10) provided in step a), thereby obtaining a first cooled syngas stream (40); c) cooling the first cooled syngas stream (40) obtained in step d) in a second heat exchanger (5) thereby obtaining a second cooled syngas stream (50); f) separating the second cooled syngas stream (50) obtained in step e) in a gas/liquid separator (6) thereby obtaining a water-enriched stream (110) and a water-depleted syngas stream (100); g) separating the water-depleted syngas stream (100) obtained in step f) in a CO2 removal unit (8) thereby obtaining a CO2-enriched stream (120) and a CO2-depleted syngas stream (130): and—31−h) combining the CO2-enriched stream (120) obtained in step g) with the feed stream (10) provided in step a).

公开(公告)号：US20230183587A1

公开(公告)日：2023-06-15

申请号：US17925488

申请日：2021-05-28

申请人： SHELL USA, INC.

发明人： Sayee Prasaad BALAJI ,  Mark KLOKKENBURG ,  Robert SCHOUWENAAR ,  Dominik Johannes Michael UNRUH ,  Jose Atilio QUEVEDO ENRIQUEZ ,  Sven FELSKE

IPC分类号： C10K3/02 ,  C01B3/16

CPC分类号： C10K3/026 ,  C01B3/16 ,  C01B2203/0822

摘要： The present invention relates to a process for converting carbon dioxide and hydrogen by performing a reverse water gas shift reaction at elevated temperature, the process comprising introducing carbon dioxide, hydrogen and oxygen into a reaction vessel having an inlet and an outlet, and, wherein the reverse water gas shift reaction takes place in two different zones of the reaction vessel, being a top zone (z1) adjacent to a bottom zone (z2). The process produces a product stream comprising mainly carbon monoxide, hydrogen and water. The process is useful in reducing the carbon footprint of certain industrial technologies, and in addition, the process is useful in the production of synthesis gas.