公开(公告)号：US11306048B2

公开(公告)日：2022-04-19

申请号：US17055284

申请日：2019-06-11

Applicant: HALDOR TOPSØE A/S

Inventor： Søren Grønborg Eskesen ,  Per Juul Dahl ,  Emil Andreas Tjärnehov ,  Max Thorhauge

IPC: C07C29/154 ,  B01J19/00 ,  B01J23/80 ,  C07C29/152

Abstract: A process for the production of methanol from synthesis gas via an equilibrium reaction is conducted in a methanol pre-converter within a certain operational window, said operational window being defined by the area below an approximately linear curve of the partial pressure of carbon monoxide vs. the boiling water temperature for water temperatures between 210 and 270° C. Methanol of different product grades may be obtained by operating in specific areas of the operational window.

公开(公告)号：US10597593B2

公开(公告)日：2020-03-24

申请号：US16301539

申请日：2017-09-11

Applicant: Haldor Topsøe A/S

Inventor： Jens Michael Poulsen ,  Lene Boas ,  Max Thorhauge

IPC: C10G70/02 ,  C10G45/00

Abstract: A process for the hydrotreatment of a fuel gas stream containing up to 15% olefins comprises the steps of introducing the fuel gas stream into at least one co-current reactor, where the stream is split into two flow fractions, of which one fraction is routed through an olefin treatment section, while the other fraction is routed through another section, subjecting the sections to heat exchange, combining the two flows, thereby equalizing temperatures and compositions, cooling the combined flow over a heat exchanger and reacting the combined flow to equilibrium in an adiabatic hydrotreatment reactor. A second co-current reactor with intercooling arranged in series after the first cocurrent reactor and before the final adiabatic reactor is used if the fuel gas stream contains more than 8% olefins.

公开(公告)号：US20190284489A1

公开(公告)日：2019-09-19

申请号：US16301539

申请日：2017-09-11

Applicant: HALDOR TOPSØE A/S

Inventor： Jens Michael Poulsen ,  Lene Boas ,  Max Thorhauge

IPC: C10G70/02

Abstract: A process for the hydrotreatment of a fuel gas stream containing up to 15% olefins comprises the steps of introducing the fuel gas stream into at least one co-current reactor, where the stream is split into two flow fractions, of which one fraction is routed through an olefin treatment section, while the other fraction is routed through another section, subjecting the sections to heat exchange, combining the two flows, thereby equalizing temperatures and compositions, cooling the combined flow over a heat exchanger and reacting the combined flow to equilibrium in an adiabatic hydrotreatment reactor. A second co-current reactor with intercooling arranged in series after the first cocurrent reactor and before the final adiabatic reactor is used if the fuel gas stream contains more than 8% olefins.

公开(公告)号：US10308576B2

公开(公告)日：2019-06-04

申请号：US15569527

申请日：2016-05-10

Applicant: Haldor Topsøe A/S

Inventor： Per Juul Dahl ,  Hassan Modarresi ,  Max Thorhauge

IPC: C07C29/151 ,  C07C31/04 ,  B01D3/06 ,  B01L3/06 ,  C01B3/12

Abstract: In a process for methanol production from synthesis gas, which comprises the steps of providing a make-up gas containing hydrogen and carbon monoxide, in which the content of carbon dioxide is less than 0.1 mole %, mixing the make-up gas with a hydrogen-rich recycle gas and passing the gas mixture to a methanol synthesis reactor, optionally via a sulfur guard, and subjecting the effluent from the synthesis reactor to a separation step, thereby providing crude methanol and the hydrogen-rich recycle gas, the customary addition of carbon dioxide to the make-up gas is replaced by addition of water in an amount of 0.1 to 5 mole %. This way, a CO2 compressor is saved, and the amount of poisonous sulfur in the make-up gas is markedly reduced.

公开(公告)号：US20180305281A1

公开(公告)日：2018-10-25

申请号：US15569527

申请日：2016-05-10

Applicant: Haldor Topsøe A/S

Inventor： Per Juul Dahl ,  Hassan Modarresi ,  Max Thorhauge

IPC: C07C29/151 ,  C07C31/04 ,  B01D3/06

CPC classification number: C07C29/1518 ,  B01D3/06 ,  B01D2257/70 ,  C01B3/12 ,  C01B2203/061 ,  C01B2203/1223 ,  C07C31/04

Abstract: In a process for methanol production from synthesis gas, which comprises the steps of providing a make-up gas containing hydrogen and carbon monoxide, in which the content of carbon dioxide is less than 0.1 mole %, mixing the make-up gas with a hydrogen-rich recycle gas and passing the gas mixture to a methanol synthesis reactor, optionally via a sulfur guard, and subjecting the effluent from the synthesis reactor to a separation step, thereby providing crude methanol and the hydrogen-rich recycle gas, the customary addition of carbon dioxide to the make-up gas is replaced by addition of water in an amount of 0.1 to 5 mole %. This way, a CO2 compressor is saved, and the amount of poisonous sulfur in the make-up gas is markedly reduced.