公开(公告)号：US20240173684A1

公开(公告)日：2024-05-30

申请号：US18282574

申请日：2022-03-18

Applicant: BASF SE

Inventor： Gerhard OLBERT ,  Torsten MATTKE ,  Jens FERBITZ ,  Koenraad VANDEWALLE ,  Kai THIELE ,  Peter VAN DEN ABEEL

IPC: B01J8/06

CPC classification number: B01J8/065 ,  B01J8/067 ,  B01J2208/00053 ,  B01J2208/00088 ,  B01J2208/00256 ,  B01J2208/021 ,  B01J2208/065

Abstract: Chemical reactor comprising an educt space with inlet means for feeding at least one educt stream into said space: a product space with outlet means for removing at least one product stream from said space: a plurality of parallel tubes extending from the educt space to the product space in an axial direction, forming a tube bundle, wherein the tubes comprise at least one heterogeneous catalyst: a cooling liquid space surrounding at least a section of the tube bundle, wherein said space has an inlet and an outlet spaced from the inlet at least in the axial direction, and wherein the cooling liquid space defines a cooling liquid flow path between inlet and outlet: n cooling liquid temperature measuring devices MD(i), i=1 . . . n, n>2, inside the cooling liquid space, wherein MD(i+1), is located upstream of MD(i) in the cooling liquid flow path.

公开(公告)号：US20230192500A1

公开(公告)日：2023-06-22

申请号：US17925331

申请日：2021-05-10

Applicant: BASF SE

Inventor： Gerhard OLBERT ,  Benjamin KRON ,  Jochen GAUER ,  Jens FERBITZ ,  Torsten MATTKE ,  Kai THIELE ,  Peter VAN DEN ABEEL ,  Koenraad VANDEWALLE ,  Kirill BRAMNIK ,  Jim BRANDTS

IPC: C01B32/80 ,  B01J21/18 ,  B01J35/10 ,  B01J35/04

CPC classification number: C01B32/80 ,  B01J21/18 ,  B01J35/04 ,  B01J35/1023 ,  B01J35/1028 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061

Abstract: The invention relates to a process for the production of phosgene comprising a gas phase reaction of carbon monoxide and chlorine in the presence of a carbon catalyst in a multi-tubular reactor, wherein the carbon catalyst comprises an amount of mesopores having a pore diameter in the range of from 2 to 50 nm of at least 0.45 ml/g of the total pore volume and the use of a carbon catalyst comprising an amount of mesopores having a pore diameter in the range of from 2 to 50 nm of at least 0.45 ml/g of the total pore volume, for the production of phosgene and a reaction mixture for preparing phosgene, the mixture comprising a catalyst for preparing phosgene comprising a porous material comprising carbon, micropores and mesopores, wherein said micropores have a pore diameter of less than 2 nm and wherein said mesopores have a pore diameter in the range of from 2 to 50 nm, wherein the volume of the mesopores of the porous material is of at least 0.45 ml/g, and a gas stream G comprising carbon monoxide (CO) and chlorine (Cl2).

公开(公告)号：US20240228301A1

公开(公告)日：2024-07-11

申请号：US18287481

申请日：2022-03-14

Applicant: BASF SE

Inventor： Gerhard OLBERT ,  Koenraad VANDEWALLE ,  Torsten MATTKE ,  Jens FERBITZ ,  Kai THIELE ,  Peter VAN DEN ABEEL ,  Jim BRANDTS

IPC: C01B32/80 ,  B01J8/06 ,  B01J21/18 ,  B01J35/64

CPC classification number: C01B32/80 ,  B01J8/065 ,  B01J21/18 ,  B01J35/643 ,  B01J35/647

Abstract: The present invention relates to a continuous process for preparing phosgene as well as a production unit for carrying out said process.

公开(公告)号：US20230074789A1

公开(公告)日：2023-03-09

申请号：US17797736

申请日：2021-01-26

Applicant: BASF SE

Inventor： Torsten MATTKE ,  Gerhard OLBERT ,  Jens FERBITZ ,  Koenraad VANDEWALLE ,  Kai THIELE ,  Peter VAN DEN ABEEL ,  Jim BRANDTS

IPC: C01B32/80 ,  B01J7/00 ,  B01J12/00 ,  B01J8/00 ,  B01J8/06

Abstract: The invention relates to a process for producing phosgene by gas phase reaction of carbon monoxide and chlorine in the presence of a catalyst in a reactor that comprises a plurality of contact tubes arranged parallel to one another, which contact tubes are filled with the catalyst and around which at least one fluid heat transfer medium flows, a feed stream of a mixture of a chlorine input stream and a carbon monoxide input stream being conducted into the contact tubes and reacted to form a phosgene-containing product gas mixture, characterised in that the product gas mixture is discharged from the contact tubes at an outlet end of the contact tubes. The method according to the invention is characterised in that the gas phase reaction is carried out in the reactor such that the position of the highest temperature in a contact tube (hot spot) moves along the longitudinal axis of the contact tube at a predetermined rate of migration, the hot spot having a rate of migration in the longitudinal direction of the contact tubes which is in the range of 1 to 50 mm per day. The invention also relates to a reactor for carrying out the process.

公开(公告)号：US20240300817A1

公开(公告)日：2024-09-12

申请号：US18277415

申请日：2022-02-10

Applicant: BASF SE

Inventor： Torsten MATTKE ,  Kai THIELE ,  Jens FERBITZ ,  Peter VAN DEN ABEEL ,  Hans-Juergen PALLASCH

IPC: C01B7/07 ,  B01D53/00 ,  C01B32/80 ,  C07C263/20

CPC classification number: C01B7/0712 ,  B01D53/002 ,  C01B7/0731 ,  C01B32/80 ,  C07C263/20 ,  B01D2256/26 ,  B01D2257/2064

Abstract: A process of separating phosgene and hydrogen chloride, comprises: conveying a mixed stream containing hydrogen chloride and phosgene into a distillation column; withdrawing from the distillation column a bottom stream containing phosgene; withdrawing a top stream containing hydrogen chloride; compressing at least a portion of the top stream and at least partially condensing the compressed top stream to form a liquid stream, decompressing at least a portion of the liquid stream to form a cooled liquid stream and a cooled gas stream; and recycling the cooled liquid stream to the top of the distillation column as a reflux; the process additionally comprising temporarily introducing an absorbing solvent into the distillation column, in particular during starting-up and/or shutting-down of the process. The process allows for safe operation even when hydrogen chloride production only gradually begins or decreases, without the necessity of storing hydrogen chloride.

公开(公告)号：US20220332587A1

公开(公告)日：2022-10-20

申请号：US17612237

申请日：2020-04-20

Applicant: BASF SE

Inventor： Gerhard OLBERT ,  Jens FERBITZ ,  Kai THIELE ,  Peter VAN DEN ABEEL ,  Koenraad VANDEWALLE ,  Jim BRANDTS ,  Torsten MATTKE

IPC: C01B32/80 ,  B01J8/06

Abstract: The invention relates to a process for producing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a catalyst in a reactor which comprises a plurality of parallel catalyst tubes which are filled with the catalyst and around which at least one fluid heat transfer medium flows, where a feed stream of a mixture of a chlorine input stream and a carbon monoxide input stream is fed into the catalyst tubes and is allowed to react to give a phosgene-comprising product gas mixture, wherein the reaction is carried out at an area load of more than 2.75 kg of phosgene/m2s. The invention also provides a reactor for carrying out the process.

公开(公告)号：US20220212936A1

公开(公告)日：2022-07-07

申请号：US17605737

申请日：2020-04-14

Applicant: BASF SE

Inventor： Torsten MATTKE ,  Gerhard OLBERT ,  Jochen GAUER ,  Kai THIELE ,  Koenraad VANDEWALLE ,  Jens FERBITZ ,  Peter VAN DEN ABEEL

IPC: C01B32/80 ,  C25B1/34 ,  C25B15/08

Abstract: The present invention relates to a process for preparing phosgene by reacting chlorine with carbon monoxide over an activated carbon catalyst, wherein the content of chlorine oxides in the chlorine feed stream is low, to an apparatus for preparation of phosgene and to the use of the phosgene prepared by the process of the invention.