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公开(公告)号:US12195683B2
公开(公告)日:2025-01-14
申请号:US18135278
申请日:2023-04-17
Applicant: UOP LLC
Inventor: Andrea G. Bozzano , Haiyan Wang , Krishna Mani , Stanley Joseph Frey
Abstract: The apparatus produces a diesel stream from a biorenewable feedstock by hydrotreating to remove heteroatoms and hydroisomerization to improve cold flow properties. Heavy diesel can be hydrocracked to jet fuel range material or further hydroisomerized to increase its value lower its freeze point while light diesel may be taken as a motor fuel.
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公开(公告)号:US12151200B2
公开(公告)日:2024-11-26
申请号:US18399282
申请日:2023-12-28
Applicant: UOP LLC
Inventor: Christopher DiGiulio , Gaurav Srivastava , Shubhra J Bhadra , Krishna Mani
IPC: B01D53/02 , B01D53/04 , B01D53/047
Abstract: A process is provided for purification of biogas to produce biomethane. The biogas is treated in a pressure swing adsorption unit to remove carbon dioxide and water. Other impurities including oxygen, hydrogen and carbon monoxide may be removed by an additional adsorption bed. The adsorption beds may be single stage or two-stage VPSA or PSA adsorption beds.
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公开(公告)号:US20230137687A1
公开(公告)日:2023-05-04
申请号:US17513651
申请日:2021-10-28
Applicant: UOP LLC
Inventor: Krishan Pratap Jadaun , Andrea G. Bozzano , Krishna Mani , Stanley Joseph Frey
Abstract: Hydrodeoxygenating a biorenewable feed that is concentrated in free fatty acids with 10-13 carbon atoms at a moderate hydrodeoxygenation ratio that is less than the ratio of hydrodeoxygenation utilized for traditional biorenewable feeds such as vegetable oil or even mineral feedstocks, normal paraffins in the range desired by the detergents industry can be produced. Either hydroisomerization or an iso-normal separation can be performed to provide green fuel streams. Two reactors are proposed, one for hydrodeoxygenation of the biorenewable feed that is concentrated in free fatty acids with 10-13 carbon atoms and the other for a traditional biorenewable feed or even a mineral feed operated at a higher deoxygenation ratio.
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公开(公告)号:US20210062099A1
公开(公告)日:2021-03-04
申请号:US16558060
申请日:2019-08-31
Applicant: UOP LLC
Inventor: Stanley Joseph Frey , Krishna Mani , Krishan Pratap Jadaun , Gautam Pandey , Mousumi Chanda
Abstract: Processes for co-processing a naphtha stream with a light cycle oil stream are disclosed. The processes include hydrocracking the light cycle oil stream under hydrocracking conditions to provide a hydrocracked effluent stream. A naphtha stream is hydrotreated under hydrotreating conditions to provide a hydrotreated effluent stream. The hydrocracked effluent stream and the hydrotreated effluent stream may be passed to a stripping column to recover a stripping bottom stream. The stripping bottom stream may be passed to a main fractionation column to recover an intermediate naphtha stream.
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公开(公告)号:US20200308496A1
公开(公告)日:2020-10-01
申请号:US16368247
申请日:2019-03-28
Applicant: UOP LLC
Inventor: Gautam Madhusadan Pandey , Krishna Mani , Deepak Bisht , Priyesh Jayendrakumar Jani , Vikrant Vilasrao Dalal , Ram Ganesh Rokkam
Abstract: An integrated process for maximizing recovery of hydrogen is provided. The process comprises: providing a hydrocarbonaceous feed comprising naphtha, and a hydrogen stream to a reforming zone, wherein the hydrogen stream is obtained from at least one of a hydrocracking zone, a transalkylation zone, and an isomerization zone. The hydrocarbonaceous feed is reformed in the reforming zone in the presence of the hydrogen stream and a reforming catalyst to provide a reformate effluent stream. At least a portion of the reformate effluent stream is passed to a debutanizer column of the reforming zone to provide a net hydrogen stream and a fraction comprising liquid petroleum gas (LPG). At least a portion of the net hydrogen stream is recycled to the reforming zone as the hydrogen stream.
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公开(公告)号:US20250084317A1
公开(公告)日:2025-03-13
申请号:US18957677
申请日:2024-11-23
Applicant: UOP LLC
Inventor: Krishan Pratap Jadaun , Hari S. Bajpai , Krishna Mani
Abstract: A process and apparatus for hydrotreating a renewable feedstock with improved carbon monoxide management is disclosed. A mixture of renewable feedstock and hydrocarbon feedstock is treated in a hydrotreating reactor to produce a hydrotreated effluent stream and contacting the hydrotreated effluent stream with a water gas shift catalyst bed to produce a shift reactor effluent stream. The shift reactor effluent stream is passed to a cold separator to recover a cold vapor stream and recycling the cold vapor stream having reduced concentration of carbon monoxide to the hydrotreating zone. The subject matter disclosed provides an improved process and apparatus to reduce the accumulation of CO by converting CO present in the hydrotreated effluent stream to CO2 using the water shift gas reaction.
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公开(公告)号:US11898105B2
公开(公告)日:2024-02-13
申请号:US17513651
申请日:2021-10-28
Applicant: UOP LLC
Inventor: Krishan Pratap Jadaun , Andrea G. Bozzano , Krishna Mani , Stanley Joseph Frey
CPC classification number: C10G3/50 , C07C2/64 , C07C2/76 , C07C15/107 , C10G3/42 , C10G45/02 , C10G45/58 , C10G2300/1014 , C10G2300/1051 , C10G2400/04 , C10G2400/08 , C10G2400/30
Abstract: Hydrodeoxygenating a biorenewable feed that is concentrated in free fatty acids with 10-13 carbon atoms at a moderate hydrodeoxygenation ratio that is less than the ratio of hydrodeoxygenation utilized for traditional biorenewable feeds such as vegetable oil or even mineral feedstocks, normal paraffins in the range desired by the detergents industry can be produced. Either hydroisomerization or an iso-normal separation can be performed to provide green fuel streams. Two reactors are proposed, one for hydrodeoxygenation of the biorenewable feed that is concentrated in free fatty acids with 10-13 carbon atoms and the other for a traditional biorenewable feed or even a mineral feed operated at a higher deoxygenation ratio.
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公开(公告)号:US20190161692A1
公开(公告)日:2019-05-30
申请号:US15825045
申请日:2017-11-28
Applicant: UOP LLC
Inventor: Krishna Mani , Deepak Bisht , Steven F. Zink
Abstract: Methods and apparatuses are disclosed for upgrading a hydrocarbon feedstream comprising passing the hydrocarbon feedstream to a first hydroprocessing reactor in a reaction vessel to produce a first hydroprocessed effluent stream. The first hydroprocessed effluent stream is separated in a hot separator to produce a vapor stream and a liquid hydrocarbon stream. At least a portion of the liquid hydrocarbon stream is passed to a second hydroprocessing reactor disposed in the reaction vessel above the first hydroprocessing reactor, to produce a second hydroprocessed effluent stream. A liquid product stream is separated from the second hydroprocessing effluent stream. The vapor stream from the hot separator is mixed with the liquid product stream to provide a combined stream.
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公开(公告)号:US09982198B2
公开(公告)日:2018-05-29
申请号:US15282678
申请日:2016-09-30
Applicant: UOP LLC
Inventor: Kanchan Dutta , Anjan Ray , Krishna Mani , Avnish Kumar
CPC classification number: C10G3/45 , C10G1/06 , C10G2300/1011 , Y02P30/20
Abstract: Processes for pyrolyzing biomass. A catalyst is used to both pyrolyze and deoxygenate the biomass within the pyrolysis zone. A source of carbon monoxide is also passed to the pyrolysis reactor. The source of carbon monoxide may comprise a stream of gas that includes carbon monoxide, or a material capable of generating or being converted in carbon monoxide within the pyrolysis zone. The carbon monoxide may be used as a reactant for a water gas shift reaction or as a reducing agent to remove oxygen from oxygenated hydrocarbons. The catalyst preferably comprises iron (III) oxide.
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公开(公告)号:US09914883B2
公开(公告)日:2018-03-13
申请号:US14677530
申请日:2015-04-02
Applicant: UOP LLC
Inventor: Kanchan Dutta , Avnish Kumar , Krishna Mani , Anjan Ray
CPC classification number: C10G45/58 , C10G3/42 , C10G3/50 , C10G2400/04 , C10L1/08 , C10L2200/0469 , C10L2270/026 , C10L2290/10 , C10L2290/24 , Y02E50/13 , Y02P30/20
Abstract: Processes for the production of transportation fuel from a renewable feedstock. A gaseous mixture of carbon monoxide and hydrogen is used to deoxygenate and hydrogenate the glycerides to produce long chain hydrocarbons. The hydrocarbons may be isomerized to improve cold flow properties to provide a diesel fuel. Prior to isomerization, the long chain hydrocarbons can be separated or the separation can be after isomerization. Recycle gas streams from the isomerization and the deoxygenation and hydrogenation reactions may be used to supply at least a portion of the gaseous mixture of carbon monoxide and hydrogen. Synthesis gas may also be used to supply at least a portion of the gaseous mixture of carbon monoxide and hydrogen.
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