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公开(公告)号：US20240246886A1
公开(公告)日：2024-07-25
申请号：US18417084
申请日：2024-01-19
Applicant: UOP LLC
Inventor： Andrew Piotrowski , Ernest J. Boehm , John J. Senetar , Matthew C. Cole , Jeannie Mee Blommel , Christopher Procopi , Ian G. Horn , Andrew B. Chin
CPC classification number: C07C2/06 , B01D11/0492 , B01D15/12 , C07C5/05 , C07C7/005 , C07C7/11 , C07C7/12
Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide a light gas stream and a olefin rich stream. Oxygenates are absorbed from the olefin rich stream into a water wash stream to provide an oxygenate rich water wash stream and a washed olefin stream. Oxygenates are then adsorbed from the washed olefin rich stream, so the deoxygenated stream can then be oligomerized.
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公开(公告)号：US20240059633A1
公开(公告)日：2024-02-22
申请号：US18260069
申请日：2022-01-21
Applicant: Evonik Operations GmbH
Inventor： Philip Lutze , Stephan Peitz , Armin Matthias Rix , Tanita Valèrie Six , Moritz Schröder , Niklas Paul
Abstract: A process for removing butenes from C4-hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The process also involves heat integration, which allows utilization of the heat of the solvent for heating and/or at least partly evaporating various streams.
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公开(公告)号：US20230060660A1
公开(公告)日：2023-03-02
申请号：US17957551
申请日：2022-09-30
Applicant: Avanpore LLC
Inventor： Benjamin Bikson
IPC: B01J20/28 , B01D69/02 , B01J20/32 , B01D63/02 , B01D67/00 , B01J20/30 , B01J20/26 , C07C7/11 , B01D61/24 , C07C7/12 , B01D69/08 , B01D71/52
Abstract: A process for the efficient transfer of molecules between phases employing mesoporous poly (aryl ether ketone) hollow fiber membranes is provided. The method addresses the controlled transfer of reactants into and removal of reaction products from a reaction media and the removal and separation of target molecules from process streams by membrane-assisted liquid-liquid extraction. A number of possible modes of liquid-liquid extraction are possible according to the invention by utilizing porous poly (aryl ether ketone) hollow fiber membranes of Janus-like structure that exhibit a combination of hydrophilic and hydrophobic surface characteristics. The method of the present invention can address the continuous manufacture of chemicals in membrane reactors and is useful for a broad range of separation applications, including separation and recovery of active pharmaceutical ingredients.
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公开(公告)号：US20220298088A1
公开(公告)日：2022-09-22
申请号：US17640092
申请日：2020-08-14
Applicant: thyssenkrupp Industrial Solutions AG , thyssenkrupp AG
Inventor： Nils TENHUMBERG , Stefan GEHRMANN , Michael KLEIBER
Abstract: A process can produce alcohols having at least two carbon atoms by catalytic conversion of synthesis gas into a mixture containing alkanes, alkenes, and alcohols. Alkenes are converted into corresponding alcohols in a subsequent step by hydration of the alkanes. Before the hydration and after the catalytic conversion, gas and liquid phases may be separated. Specific catalysts can be employed that have a markedly higher selectivity for alkenes than for alkanes. These catalysts comprise grains of non-graphitic carbon having cobalt nanoparticles dispersed therein. The cobalt nanoparticles have an average diameter dp from 1 to 20 nm, and an average distance D between nanoparticles is from 2 to 150 nm. The combined total mass fraction of metal ω in the grains ranges from 30% to 70% by weight of the total mass of the grains of non-graphitic carbon, wherein 4.5 dp/ω>D≥0.25 dp/ω.
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公开(公告)号：US11434433B2
公开(公告)日：2022-09-06
申请号：US16462065
申请日：2017-11-20
Applicant: KURARAY CO., LTD.
Inventor： Masaki Shimizu , Yuusuke Saitou , Takuo Tsuruta
Abstract: Provided is a composition for removal of a sulfur-containing compound in a liquid or gas, wherein the sulfur-containing compound is at least one selected from the group consisting of hydrogen sulfide and a compound containing an —SH group, and the composition contains an aldehyde and a polyvalent amine represented by the general formula (1).
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公开(公告)号：US20220194878A1
公开(公告)日：2022-06-23
申请号：US17130260
申请日：2020-12-22
Applicant: Gautham Krishnaiah , Brian Heasley , John Lewis Webb, JR. , Rahul Radhakrishna Pillai , Vijender K. Verma , Narinder Singh Duggal
Inventor： Gautham Krishnaiah , Brian Heasley , John Lewis Webb, JR. , Rahul Radhakrishna Pillai , Vijender K. Verma , Narinder Singh Duggal
Abstract: Methods and systems for treating an olefin-containing stream are disclosed. The disclosed methods and systems are particularly suitable for treating an off-gas stream in a refining or petrochemical process, such as from a fluid catalytic cracker (FCC), coker, steam cracker, and the like. The stream is treated in an absorber column to reject lighter stream components and to absorb ethylene and/or propylene into a solvent. The solvent is typically isobutane. The enriched solvent stream from the absorber column is fed to an alkylation reactor, which reacts the dissolved olefin with the isobutane solvent to produce an alkylate product.
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公开(公告)号：US20220152549A1
公开(公告)日：2022-05-19
申请号：US17099815
申请日：2020-11-17
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Saleh H. Al-Ofi
Abstract: Provided are a process and a system for treating both a high-pressure (HP) and a low-pressure (LP) acid gas-containing gas streams. The system includes a HP absorber unit, a flash drum coupled downstream of the HP absorber unit, and a LP absorber unit coupled downstream of the flash drum. The process includes introducing a HP rich amine solution from a HP absorber unit into a flash drum, operating the flash drum such that a flashed sour gas and a flash drum rich amine solution are produced, and introducing the flashed sour gas and the LP acid gas-containing gas stream into a LP absorber unit.
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公开(公告)号：US20220008864A1
公开(公告)日：2022-01-13
申请号：US16927493
申请日：2020-07-13
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Mohammed Thewaiban AlJuaid , Fahad Abdulla AlHamad , Finbarr Brian Healy , Mike Ponstingl , Bandar Mohammed AlMosa , Mohammed Saleh AlJawfi , Richard Nordman
Abstract: A system for scrubbing and monitoring H2S includes: a sample inlet valve that controls an input stream of the hydrocarbon gas from the gas canister; a first scrubber that removes a first portion of H2S from the input stream and that outputs a first stream with less H2S than the input stream; a second scrubber that removes a second portion of H2S from the first stream and that outputs a second stream with less H2S than the first stream; a H2S converter that converts all remaining H2S in the second stream into a di-ketone and that outputs an output stream with a concentration of the di-ketone; an optical detector that measures the concentration of the di-ketone in the output stream; and a processor that determines a concentration of H2S in the second stream based on the concentration of the di-ketone in the output stream.
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公开(公告)号：US20210284589A1
公开(公告)日：2021-09-16
申请号：US16325058
申请日：2017-08-14
Applicant: LINDE AKTIENGESELLSCHAFT
Inventor： Tuat PHAM DUC , Anne SPINDELNDREHER , Benedikt KURZ
Abstract: The invention relates to a method (100) for the recovery of a separation product which contains predominantly hydrocarbons with two carbon atoms, with the use of a separation feedstock which contains predominantly methane, hydrogen and hydrocarbons with two carbon atoms, wherein the methane content of the separation feedstock is up to 20%, and the separation feedstock is provided in a gaseous state. It is provided that, at a first pressure level, the separation feedstock is partially condensed in a single step by cooling from a first temperature level to a second temperature level, thereby obtaining precisely one first liquid fraction and precisely one first gaseous fraction; at least one part of the first gaseous fraction is partially condensed in a single step through further cooling from the second temperature level to a third temperature level, thereby obtaining precisely one second liquid fraction and precisely one second gaseous fraction; at least one part of the second gaseous fraction at the second pressure level is subjected to a contraflow absorption in the contraflow to an absorption liquid containing predominantly methane, thereby obtaining precisely one third liquid fraction and precisely one third gaseous fraction; the first, the second and the third liquid fraction are at least partially combined and, at least partially, at a second pressure level above the first pressure level, subjected to a low-temperature rectification, thereby obtaining a sump liquid and an overhead gas; at least one part of the overhead gas at the second pressure level is partially condensed in a single step through further cooling from the second temperature level to the third temperature level, thereby obtaining a fourth liquid fraction and a fourth gaseous fraction; and the absorption liquid containing predominantly methane is formed through further cooling of at least a part of the fourth gaseous fraction to a fourth temperature level. A corresponding plant also forms the subject matter of the invention.
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公开(公告)号：US11053447B2
公开(公告)日：2021-07-06
申请号：US16703567
申请日：2019-12-04
Applicant: Baker Hughes, a GE company, LLC
Inventor： Jerry J. Weers , Timothy J. O'Brien , Waynn C. Morgan
IPC: C10G29/20 , C07C7/12 , C07C7/11 , C10G29/02 , C10L3/10 , C10G53/12 , C10G53/04 , C10G21/16 , C10G21/20 , C07C7/00 , C10G53/08 , C10G19/02 , C07C7/148
Abstract: Treatment of hydrocarbon streams, and in one non-limiting embodiment refinery distillates, with reducing agents, such as borohydride and salts thereof, alone or together with at least one co-solvent results in reduction of the sulfur compounds such as disulfides, mercaptans, thiophenes, and thioethers that are present to give easily removed sulfides. In one non-limiting embodiment, the treatment converts the original sulfur compounds into hydrogen sulfide or low molecular weight mercaptans that can be extracted from the distillate with caustic solutions, hydrogen sulfide or mercaptan scavengers, solid absorbents such as clay or activated carbon or liquid absorbents such as amine-aldehyde condensates and/or aqueous aldehydes.
