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1.发明申请公开(公告)号：US20180273463A1
公开(公告)日：2018-09-27
申请号：US15996394
申请日：2018-06-01
Applicant: UOP LLC
Inventor： Raelynn M. Miller , Alakananda Bhattacharyya , David S. Lafyatis , Amanda L. Stolarski , Rodrigo Lobo , Madan Bhasin
IPC: C07C51/487 , C07C51/255 , C07C63/26 , B01J23/44 , B01J27/224 , B01J21/06 , B01J35/10
CPC classification number: C07C51/487 , B01J21/06 , B01J23/44 , B01J27/224 , B01J35/006 , B01J35/1009 , B01J37/12 , B01J37/16 , B01J37/18 , C07C51/255 , C07C63/26
Abstract: Impure aromatic carboxylic acids such as are obtained by liquid phase oxidation of feed materials comprising aromatic compounds with substituent groups oxidizable to carboxylic acid groups, or comprising aromatic carboxylic acid and one or more aromatic carbonyl impurities that form hydrogenated species more soluble in aqueous solvents or with less color or color-forming tendencies than the aromatic carbonyl impurity, are purified to an aromatic carboxylic acid product with lower levels of impurities by a process comprising contacting an aqueous solution comprising the impure aromatic carboxylic acid with hydrogen at elevated temperature and pressure with an attrition-resistance, acid stable catalyst composition comprising at least one hydrogenation catalyst metal and a support comprising relatively high surface area of high porosity silicon carbide with low levels of iron and alkali metal impurities. The support may further contain titanium or rare earth metals.
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公开(公告)号：US10702798B2
公开(公告)日：2020-07-07
申请号：US14921156
申请日：2015-10-23
Applicant: UOP LLC
Inventor： Eric Leeton , Gregory J. Schrad , David S. Lafyatis , Matthew Lippmann , Douglas A. Nafis
IPC: B01D15/36 , B01D15/08 , B01D53/14 , B01D21/01 , B01D11/04 , B01D61/02 , B03C5/00 , B03C11/00 , B03C3/017
Abstract: A process for treating an ionic liquid containing waste stream is described. If there is a liquid waste stream, the liquid waste stream is introduced into a liquid treatment zone. The ionic liquid in the liquid waste stream is neutralized. The concentration of the ionic liquid in the liquid waste stream is determined, and the allowed concentration of the ionic liquid in the liquid waste stream is determined. The concentration of the ionic liquid in the neutralized liquid waste stream is reduced to the allowed concentration, and the liquid waste stream having the allowed concentration is released. If there is a vapor waste stream, the vapor waste stream is introduced into a vapor treatment zone. The vapor waste stream is treated to form a treated vapor waste stream, and the treated vapor waste stream is released to a plant vapor treatment zone.
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公开(公告)号：US20180272327A1
公开(公告)日：2018-09-27
申请号：US15994962
申请日：2018-05-31
Applicant: UOP LLC
Inventor： Matthew Lippmann , David S. Lafyatis , Douglas A. Nafis , Kurt Detrick
IPC: B01J31/40 , B01J31/02 , B01J38/64 , C07C7/12 , C07C7/13 , C07C7/00 , C07C7/10 , C10G25/02 , C10G25/05 , C10G53/08 , C10G31/00 , B01D17/04 , B01D17/02 , B01D17/06
Abstract: A process removing ionic liquid from a process stream is described. The process stream is introduced into a coalescer to form an ionic liquid stream and a first treated process stream which has less ionic liquid than the process stream. The first treated process stream is introduced into a separator to form a second treated process stream. The second treated process stream has less ionic liquid than the first treated process stream. The separator is selected from a filtration zone comprising sand or carbon, an adsorption zone, a scrubbing zone, an electrostatic separation zone, or combinations thereof.
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公开(公告)号：US09815049B2
公开(公告)日：2017-11-14
申请号：US15331702
申请日：2016-10-21
Applicant: UOP LLC
Inventor： David S. Lafyatis , Sean G. Mueller , Zhanping Xu , Douglas A. Nafis , Robert Mehlberg , Kurt Detrick , Avram M. Buchbinder
CPC classification number: B01J31/0282 , B01J31/0278 , B01J31/0279 , B01J31/0284 , B01J31/0288 , B01J2231/20 , B01J2231/323 , B01J2231/44 , B01J2231/52 , B01J2231/543 , C07C2/26 , C07C2/58 , C07C5/2727 , C07C6/04 , C07C2531/02 , C10G29/205 , C10G50/00 , C07C9/16
Abstract: A method of controlling a hydrocarbon conversion process is described. The method involves introducing a reactant into a reaction zone containing an ionic liquid catalyst. The reaction zone has at least two zones. The mass transfer resistance in the second zone is greater than the mass transfer resistance in the first zone.
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公开(公告)号：US11066345B2
公开(公告)日：2021-07-20
申请号：US16454526
申请日：2019-06-27
Applicant: UOP LLC
Inventor： Michael W. Penninger , Mark P. Lapinski , Gregory R. Werba , David S. Lafyatis
Abstract: Processes for increasing an octane value of a gasoline component by dehydrogenating a stream comprising C7 hydrocarbons and methylcyclohexane in a first dehydrogenation zone to form an intermediate dehydrogenation effluent, and then dehydrogenating the intermediate dehydrogenation effluent in a second dehydrogenation zone to form a C7 dehydrogenation effluent. The C7 dehydrogenation effluent has an increased olefins content compared to an olefins content of the intermediate dehydrogenation effluent. The first dehydrogenation zone is operated under conditions to convert methylcyclohexane to toluene and minimize cracking reactions. The intermediate dehydrogenation effluent may be heated before being passed to the second dehydrogenation zone.
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Patent Agency Ranking
公开(公告)号：US20190002771A1
公开(公告)日：2019-01-03
申请号：US16005950
申请日：2018-06-12
Applicant: UOP LLC
Inventor： David S. Lafyatis , Gary A. Marr , Bryan K. Glover
IPC: C10G35/085 , B01J23/42 , B01J23/656 , B01J23/62 , B01J23/14
Abstract: The invention provides a process for the catalytic reforming of hydrocarbons comprising contacting the hydrocarbon feed in two or more sequential catalyst zones. The initial catalyst zone is a fixed-bed system and contains an initial catalytic composition comprising a platinum component, a germanium or rhenium component, a refractory inorganic oxide, potassium and a halogen component and then there is a terminal catalyst zone with a terminal catalyst composition that has a similar composition but with an essential lack of potassium. The addition of potassium was found to improve the yield of C5+ hydrocarbons.
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公开(公告)号：US20170144141A1
公开(公告)日：2017-05-25
申请号：US15331702
申请日：2016-10-21
Applicant: UOP LLC
Inventor： David S. Lafyatis , Sean G. Mueller , Zhanping Xu , Douglas A. Nafis , Robert Mehlberg , Kurt Detrick , Avram M. Buchbinder
CPC classification number: B01J31/0282 , B01J31/0278 , B01J31/0279 , B01J31/0284 , B01J31/0288 , B01J2231/20 , B01J2231/323 , B01J2231/44 , B01J2231/52 , B01J2231/543 , C07C2/26 , C07C2/58 , C07C5/2727 , C07C6/04 , C07C2531/02 , C10G29/205 , C10G50/00 , C07C9/16
Abstract: A method of controlling a hydrocarbon conversion process is described. The method involves introducing a reactant into a reaction zone containing an ionic liquid catalyst. The reaction zone has at least two zones. The mass transfer resistance in the second zone is greater than the mass transfer resistance in the first zone.
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公开(公告)号：US20170113162A1
公开(公告)日：2017-04-27
申请号：US14921156
申请日：2015-10-23
Applicant: UOP LLC
Inventor： Eric Leeton , Gregory J. Schrad , David S. Lafyatis , Matthew Lippmann , Douglas A. Nafis
CPC classification number: B01D15/361 , B01D11/04 , B01D15/08 , B01D61/025 , B03C3/017 , B03C5/00 , B03C11/00
Abstract: A process for treating an ionic liquid containing waste stream is described. If there is a liquid waste stream, the liquid waste stream is introduced into a liquid treatment zone. The ionic liquid in the liquid waste stream is neutralized. The concentration of the ionic liquid in the liquid waste stream is determined, and the allowed concentration of the ionic liquid in the liquid waste stream is determined. The concentration of the ionic liquid in the neutralized liquid waste stream is reduced to the allowed concentration, and the liquid waste stream having the allowed concentration is released. If there is a vapor waste stream, the vapor waste stream is introduced into a vapor treatment zone. The vapor waste stream is treated to form a treated vapor waste stream, and the treated vapor waste stream is released to a plant vapor treatment zone.
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公开(公告)号：US20250154081A1
公开(公告)日：2025-05-15
申请号：US18806332
申请日：2024-08-15
Applicant: UOP LLC
Inventor： Kristen E. Allaire , Stanley J. Frey , David S. Lafyatis , Brett King
IPC: C07C6/12
Abstract: The processes upgrade a low value heavy aromatics stream into a high value BTX precursor stream. It treats the naphthalenic molecules in the heavy aromatics stream comprising C9 to C12 aromatics prior to reaching the transalkylation reactor. The naphthalenic molecules are converted into BTX precursors by partially hydrogenating one of the aromatic rings and subsequently ring opening the saturated ring to form a monoaromatic prior to the transalkylation reactor. With naphthalene no longer present, the remaining C11 monoaromatics may be processed in the aromatics complex for an overall increased BTX production.
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公开(公告)号：US20250084016A1
公开(公告)日：2025-03-13
申请号：US18744983
申请日：2024-06-17
Applicant: UOP LLC
Inventor： Nirlipt Mahapatra , Priyank Tiwari , Srinivasan Ramanujam , Priyesh Jayendrakumar Jani , Gautam Pandey , Pankaj Kumar Singh , Raymond S. Chan , Bryan J. Egolf , Elie J. Fayad , David S. Lafyatis , Clayton C. Sadler
Abstract: Processes for hydrogenating toluene to methylcyclohexane (MCH) and dehydrogenating MCH to toluene with minimal to no by-products, thereby ensuring minimal loss of hydrogen are described. MCH acts as a liquid organic hydrogen carrier, and it can be transferred in storage vessels and/or pipelines for several thousands of miles to the final destination with very minimal to no degradation.
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