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公开(公告)号：US20240059627A1
公开(公告)日：2024-02-22
申请号：US18450562
申请日：2023-08-16
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Andrew Ingram
CPC classification number: C07C1/2078 , C07D307/33 , B01J23/06 , B01J29/40 , B01J27/14 , B01J21/02 , B01J35/0066 , C07C2529/06 , C07C2523/06 , C07C2521/06
Abstract: Processes for producing two or more different C2-C6 linear or branched olefins are disclosed herein. In one exemplary implementation, the process can include contacting a first feed stream that includes γ-valerolactone with one or more first catalysts in a first reactor to form a mixture. The mixture includes two or more different C2-C6 linear or branched olefins at a yield of at least 60%, and the one or more first catalysts include a doped zeolite. Processes for converting levulinic acid to γ-valerolactone are also disclosed herein.
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公开(公告)号：US20220234969A1
公开(公告)日：2022-07-28
申请号：US17675840
申请日：2022-02-18
Applicant: Gevo, Inc.
Inventor： Jonathan Smith
Abstract: This present disclosure relates to a catalytic process for upgrading crude and/or refined fusel oil mixtures to higher value renewable 2-methyl-2-butene, via novel doped alumina catalysts. It was found that passing a vaporized stream of crude and/or refined fusel oils over doped alumina catalysts provides renewable 2-methyl-2-butene in high yields in a single step. Subsequent downstream purification of the reactor effluent results in a renewable 2-methyl-2-butene at competitive price and quality to fossil fuel derived 2-methyl-2-butene.
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公开(公告)号：US20220227685A1
公开(公告)日：2022-07-21
申请号：US17695993
申请日：2022-03-16
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Madeline Sjodin
IPC: C07C1/24 , C07C2/12 , C07C6/04 , B01J21/04 , B01J21/06 , B01J29/40 , B01J23/30 , B01J21/08 , C10G3/00
Abstract: This disclosure relates to a single stage process for the direct conversion of alcohols, e.g. ethanol, to olefinic mixtures (C2-C7) with low levels of aromatics carried out in a single reactor with two fixed catalyst beds in series, or two catalytic fixed bed reactors in series wherein the first reactor operates at a lower or higher temperature than the operating temperature of the second reactor. The process transformation of ethanol is comprised of ethanol dehydration to ethylene and water in high yield with the first catalyst in the first reactor, or via the first fixed catalyst bed, followed by directly feeding the ethylene and water to the second reactor, or second fixed catalyst bed, with conversion of said ethylene and water to a C2-C7 olefinic mixture with the second catalyst(s) in high yields with minimal aromatic compound formation.
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公开(公告)号：US20220112434A1
公开(公告)日：2022-04-14
申请号：US17556796
申请日：2021-12-20
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Madeline Sjodin
Abstract: This present disclosure relates to catalytic processes for oligomerizing bio-based olefinic mixtures to higher value renewable fuels via a doped Chabazite zeolite catalyst. A stream including a C2-C8 olefin and an oxygenate is fed to an oligomerization process utilizing a doped Chabazite zeolite catalyst resulting in high yields and selectivity of oligomers used to produce bio-based jet fuel and/or diesel fuels depending upon reaction temperatures and pressures. The process also produces iso-octane that is suitable for producing bio-based gasoline. The process tolerates relatively high levels of oxygenates in the olefinic feed and the catalyst is capable of air regeneration.
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公开(公告)号：US12187966B2
公开(公告)日：2025-01-07
申请号：US17734172
申请日：2022-05-02
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Madeline Sjodin
Abstract: Disclosed is a process for converting lower linear and branched mono-olefins, derived from C2-C5 bio-based alcohols to higher hydrocarbons, to one or more C8-C24 hydrocarbons. Certain embodiments provide a process for oligomerization of branched and/or linear C3-C8 olefins to renewable diesel fuel and/or jet fuel in overall yields of at least 70% in the presence of tungstated γ-alumina or tungstated silica catalysts admixed with ZSM-5 type zeolites.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20230065667A1
公开(公告)日：2023-03-02
申请号：US17975461
申请日：2022-10-27
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Andrew Ingram
IPC: C07C1/24
Abstract: Processes for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins are provided. In one exemplary embodiment, the process can be a single stage process for the direct conversion of C1-C5 alcohols to olefinic mixtures (e.g., C2-C5) carried out in a reactor using a catalyst that includes zeolite doped with boron and phosphor. Systems for carrying out these processes are also provided.
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公开(公告)号：US12091373B2
公开(公告)日：2024-09-17
申请号：US17975461
申请日：2022-10-27
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Andrew Ingram
IPC: C07C1/24
CPC classification number: C07C1/24 , C07C2529/06
Abstract: Processes for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins are provided. In one exemplary embodiment, the process can be a single stage process for the direct conversion of C1-C5 alcohols to olefinic mixtures (e.g., C2-C5) carried out in a reactor using a catalyst that includes zeolite doped with boron and phosphor. Systems for carrying out these processes are also provided.
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公开(公告)号：US12043587B2
公开(公告)日：2024-07-23
申请号：US17695993
申请日：2022-03-16
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Madeline Sjodin
IPC: C07C1/24 , B01J21/04 , B01J21/06 , B01J21/08 , B01J23/30 , B01J29/40 , C07C2/12 , C07C6/04 , C10G3/00
CPC classification number: C07C1/24 , B01J21/04 , B01J21/066 , B01J21/08 , B01J23/30 , B01J29/40 , C07C2/12 , C07C6/04 , C10G3/49 , C07C2521/04 , C07C2521/06 , C07C2521/08 , C07C2523/30 , C07C2529/40 , C10G2400/20 , C10G2400/22
Abstract: This disclosure relates to a single stage process for the direct conversion of alcohols, e.g. ethanol, to olefinic mixtures (C2-C7) with low levels of aromatics carried out in a single reactor with two fixed catalyst beds in series, or two catalytic fixed bed reactors in series wherein the first reactor operates at a lower or higher temperature than the operating temperature of the second reactor. The process transformation of ethanol is comprised of ethanol dehydration to ethylene and water in high yield with the first catalyst in the first reactor, or via the first fixed catalyst bed, followed by directly feeding the ethylene and water to the second reactor, or second fixed catalyst bed, with conversion of said ethylene and water to a C2-C7 olefinic mixture with the second catalyst(s) in high yields with minimal aromatic compound formation.
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公开(公告)号：US12006284B2
公开(公告)日：2024-06-11
申请号：US17675840
申请日：2022-02-18
Applicant: Gevo, Inc.
Inventor： Jonathan Smith
CPC classification number: C07C5/2213 , C07C1/24
Abstract: This present disclosure relates to a catalytic process for upgrading crude and/or refined fusel oil mixtures to higher value renewable 2-methyl-2-butene, via novel doped alumina catalysts. It was found that passing a vaporized stream of crude and/or refined fusel oils over doped alumina catalysts provides renewable 2-methyl-2-butene in high yields in a single step. Subsequent downstream purification of the reactor effluent results in a renewable 2-methyl-2-butene at competitive price and quality to fossil fuel derived 2-methyl-2-butene.
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公开(公告)号：US20240409479A1
公开(公告)日：2024-12-12
申请号：US18631651
申请日：2024-04-10
Applicant: Gevo, Inc.
Inventor： Jonathan Smith , Madeline Sjodin
IPC: C07C1/24 , B01J21/04 , B01J21/06 , B01J21/08 , B01J23/30 , B01J29/40 , C07C2/12 , C07C6/04 , C10G3/00
Abstract: This disclosure relates to a single stage process for the direct conversion of alcohols, e.g. ethanol, to olefinic mixtures (C2-C7) with low levels of aromatics carried out in a single reactor with two fixed catalyst beds in series, or two catalytic fixed bed reactors in series wherein the first reactor operates at a lower or higher temperature than the operating temperature of the second reactor. The process transformation of ethanol is comprised of ethanol dehydration to ethylene and water in high yield with the first catalyst in the first reactor, or via the first fixed catalyst bed, followed by directly feeding the ethylene and water to the second reactor, or second fixed catalyst bed, with conversion of said ethylene and water to a C2-C7 olefinic mixture with the second catalyst(s) in high yields with minimal aromatic compound formation.
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