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公开(公告)号：US20240317659A2
公开(公告)日：2024-09-26
申请号：US18245572
申请日：2021-10-04
Applicant: SHELL OIL COMPANY
Inventor： Pieter HUIZENGA , Eugene VAN KRUCHTEN , Karin BUS
CPC classification number: C07C29/84 , C07C29/172 , C07C29/82
Abstract: The invention provides a process for the separation of a diol from a product stream. The process includes the steps of: i) separating the product stream comprising three or more C2 to C6 diols, C3 to C6 sugar alcohols, and C4 to C6 polyhydric alcohols with at least 3 hydroxyl groups in the molecule, and a catalyst, to produce a first stream comprising the three or more C2 to C6 diols; ii) separating the first stream comprising the three or more C2 to C6 diols into a) a second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group and b) a third stream comprising two or more diols; iii) hydrogenating the second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group to provide a purified diol stream.
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公开(公告)号：US20230365482A1
公开(公告)日：2023-11-16
申请号：US18245572
申请日：2021-10-04
Applicant: Shell Oil Company
Inventor： Pieter HUIZENGA , Eugene Marie Godfried An VAN KRUCHTEN , Karin BUS
CPC classification number: C07C29/84 , C07C29/82 , C07C29/172
Abstract: The invention provides a process for the separation of a diol from a product stream. The process includes the steps of: i) separating the product stream comprising three or more C2 to C6 diols, C3 to C6 sugar alcohols, and C4 to C6 polyhydric alcohols with at least 3 hydroxyl groups in the molecule, and a catalyst, to produce a first stream comprising the three or more C2 to C6 diols; ii) separating the first stream comprising the three or more C2 to C6 diols into a) a second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group and b) a third stream comprising two or more diols; iii) hydrogenating the second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group to provide a purified diol stream.
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公开(公告)号：US20170334816A1
公开(公告)日：2017-11-23
申请号：US15533815
申请日：2015-12-04
Applicant: SHELL OIL COMPANY
Inventor： Pieter HUIZENGA , Kai Jurgen FISCHER
CPC classification number: C07C29/84 , B01D3/40 , B01D3/4294 , C07C29/80 , C07C31/202 , C07C31/207
Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO, said process comprising the steps of: (i) providing said first mixture comprising MEG and 1,2-BDO as a feed to a distillation column; (ii) providing a feed comprising glycerol to the distillation column above the first mixture; (iii) operating the distillation column at a temperature in the range of from 50 to 250° C. and a pressure in the range of from 0.1 to 400 kPa; (iv) removing a stream comprising MEG and glycerol as a bottoms stream from the distillation column; and (v) (v) removing a stream comprising 1,2-BDO above the point at which the feed comprising glycerol is provided to the distillation column.
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公开(公告)号：US20220388933A1
公开(公告)日：2022-12-08
申请号：US17776268
申请日：2020-12-16
Applicant: SHELL OIL COMPANY
Inventor： Evert VAN DER HEIDE , Pieter HUIZENGA , Kai FISCHER , Carmelo PEREZ GOLF , David PINILLA GARCIA
IPC: C07C29/84
Abstract: A process for the production of a high purity first diol from a product stream comprising two or more C2 to C7 diols, said process comprising the steps of: (i) providing the product stream to a first distillation column; (ii) providing an extractant selected from the group of C3 to C6 sugar alcohols and mixtures thereof to the first distillation column; (iii) operating the first distillation column to obtain a first bottoms stream comprising at least a first diol and the extractant; (iv) providing the first bottoms stream to a second distillation column operating to obtain a second top stream comprising the first diol and diols with atmospheric boiling points at least 10° C. higher than the first diol, and (v) providing the second top stream to a third distillation column to obtain a third top stream comprising the first diol; wherein the product stream comprises 0.1 to 10 wt % of diols with atmospheric boiling points at least 10° C. higher than the first diol, calculated upon the total weight of C2 to C7 diols in the product stream.
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公开(公告)号：US20220281788A1
公开(公告)日：2022-09-08
申请号：US17637856
申请日：2020-09-25
Applicant: SHELL OIL COMPANY
Inventor： Jean Paul Andre Marie Joseph Ghislain LANGE , Evert VAN DER HEIDE , Pieter HUIZENGA , Thimo Daniel Jozef TE MOLDER
Abstract: A process for the preparing glycols from a lignocellulosic solid biomass involves contacting the biomass with an organic solvent comprising a low boiling point alcohol and a pre-treatment acid at a temperature in a range from 80 to 220° C. and a pressure in a range from 1 to 50 bara. The resulting mixture, having >20 wt. % water, is separated into a pre-treated solid residue comprising cellulose and a liquid stream comprising dissolved lignin and hemicellulose. The pre-treated solid residue is subjected to a hydrogenolysis reaction, generating a glycols stream, a lights stream, comprising a first portion of organic solvent, and a heavies stream. At least of part of the liquid stream is separated to produce a second portion of organic solvent and a solid residue of lignin and hemicellulose. At least part of the first and second portion of organic solvent is recycled to the contacting step.
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Patent Agency Ranking
公开(公告)号：US20190202760A1
公开(公告)日：2019-07-04
申请号：US16322568
申请日：2017-08-02
Applicant: SHELL OIL COMPANY
IPC: C07C29/132 , C07C29/76 , B01J23/30 , B01J23/04
CPC classification number: C07C29/132 , B01J23/04 , B01J23/30 , C07C29/76 , C07C31/202 , C07C31/205 , C07C31/20
Abstract: The invention provides a process for the preparation of glycols from a saccharide-containing feedstock in a reactor system, said process comprising: i) providing a first feed stream comprising said saccharide-containing feedstock in a first solvent at a N temperature of no more than 160° C.; ii) providing a second feed stream comprising a tungsten-based retro-aldol catalytic species and an alkali metal containing species in a second solvent at a temperature in the range of from 150 to 250° C.; iii) combining the first feed stream and the second feed stream, before they are provided to the reactor system, to form a combined feed stream; iv) providing the combined feed stream to the reactor system and operating the reactor at a temperature in the range of from 150° C. to 250° C.; and v) also contacting the combined feed stream with a hydrogenation catalytic species in the presence of hydrogen, wherein the molar ratio of alkali metal:tungsten in the combined feed stream is in the range of from 0.55 to 6.
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公开(公告)号：US20190084907A1
公开(公告)日：2019-03-21
申请号：US16082123
申请日：2017-03-06
Applicant: SHELL OIL COMPANY
Inventor： Pieter HUIZENGA , Evert VAN DER HEIDE , Johannes Pieter HAAN , Michel VLAANDEREN
Abstract: The invention provides a process for recovering a metallic component from a process stream, said process comprising passing said process stream over a ceramic membrane comprising a selective layer with a pore size in the range of from at least 0.5 nm to at most 10 nm; applying a pressure difference across said ceramic membrane such that the pressure outside the ceramic membrane is at least 50 kPa lower than the pressure inside the ceramic membrane; and, thus, providing a permeate stream which has passed through the ceramic membrane and which is depleted in the metallic component and a retentate stream enriched in the metallic component; wherein the process stream is derived from a process for the conversion of saccharide-containing feedstock into glycols.
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公开(公告)号：US20180362425A1
公开(公告)日：2018-12-20
申请号：US16060262
申请日：2016-12-07
Applicant: SHELL OIL COMPANY
IPC: C07C29/132 , C07C31/20 , B01J19/18 , B01J19/24 , B01J21/06 , B01J23/22 , B01J23/26 , B01J23/28 , B01J23/30
Abstract: The invention provides a continuous process for the preparation of ethylene glycol and 1,2-propylene glycol from starting material comprising one or more saccharides, said process comprising providing a feedstock comprising said one or more saccharides in a solvent to a reactor, said reactor having supported therein a heterogeneous hydrogenation catalytic composition and contacting the feedstock therein directly with said heterogeneous hydrogenation catalytic composition and concurrently with a retro-aldol catalyst composition in the presence of hydrogen, wherein said reactor operates in an essentially plug flow manner.
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公开(公告)号：US20180273452A1
公开(公告)日：2018-09-27
申请号：US15763466
申请日：2016-09-27
Applicant: SHELL OIL COMPANY
IPC: C07C29/132 , C07C29/60 , B01J23/652 , B01J37/18
CPC classification number: C07C29/132 , B01J23/6527 , B01J37/18 , C07C29/60 , Y02P20/52 , C07C31/202 , C07C31/205
Abstract: The invention provides a process for the production of glycols comprising the step of adding to a reactor vessel a saccharide-containing feedstock, a solvent, hydrogen, a retro-aldol catalyst composition and a catalyst precursor and maintaining the reactor vessel at a temperature and a pressure, wherein the catalyst precursor comprises one or more cations selected from groups 8, 9, 10 and 11 of the periodic table, and wherein the catalyst precursor is reduced in the presence of hydrogen in the reactor vessel into an unsupported hydrogenation catalyst.
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公开(公告)号：US20170174596A1
公开(公告)日：2017-06-22
申请号：US15300506
申请日：2015-04-02
Applicant: SHELL OIL COMPANY
Inventor： Pieter HUIZENGA , CHARLES-EDOUARD SANDERS
CPC classification number: C07C29/82 , B01D3/143 , B01D3/36 , C07C31/202 , C07C31/207
Abstract: The invention provides a process for separating monoethylene glycol from a mixture comprising monoethylene glycol and 1,2-butanediol, said process comprising the steps of: a. providing a first stream comprising monoethylene glycol and 1,2-butanediol to a first distillation zone operated at a first pressure and under conditions to remove a first bottoms stream comprising 1,2-butanediol and to remove a first azeotrope of monoethylene glycol and 1,2-butanediol from the first distillation zone as a first overheads stream; b. withdrawing said first overheads stream from said first distillation zone; and c. providing said first overheads stream to a second distillation zone operated at a second pressure higher than said first pressure and under conditions to remove a second bottoms stream comprising monoethylene glycol and providing a second azeotrope of monoethylene glycol and 1,2-butanediol as a second overheads stream; d. withdrawing said second overheads stream from the second distillation zone and providing it to the first distillation zone as at least a portion of the first stream comprising monoethylene glycol and 1,2-butanediol, e. wherein the mixture comprising monoethylene glycol and 1,2-butanediol is initially provided to at least one of the first distillation zone and the second distillation zone.
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