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公开(公告)号：US11479521B2
公开(公告)日：2022-10-25
申请号：US16491318
申请日：2018-03-09
发明人： Matthew T. Pretz
摘要： According to one or more embodiments of the present disclosure, chemical streams may be processed by a method which may comprise operating a first chemical process, stopping the first chemical process and removing the first catalyst from the reactor, and operating a second chemical process. The reaction of the first chemical process may be a dehydrogenation reaction, a cracking reaction, a dehydration reaction, or a methanol-to-olefin reaction. The reaction of the second chemical process may be a dehydrogenation reaction, a cracking reaction, a dehydration reaction, or a methanol-to-olefin reaction. The first reaction and the second reaction may be different types of reactions.
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公开(公告)号：US11473020B2
公开(公告)日：2022-10-18
申请号：US17143526
申请日：2021-01-07
发明人： Saeed Al-Alloush , Othman Taha
摘要： A method for fluid catalytic cracking (FCC) of petroleum oil feedstock includes reacting the petroleum oil feedstock with a catalyst mixture in a reaction zone of an FCC unit to obtain a product stream including desulfurized hydrocarbon product, unreacted petroleum oil feedstock, and spent catalyst. During the reacting a process control system develops a process model based on data collected during the reacting, the process model characterizing a relationship among the feed rate of the base cracking catalyst, the feed rate of the FCC additive, the operating conditions, the composition of the product stream, and emissions from the reaction; and one or more of (i) a target feed rate of the base cracking catalyst, (ii) a target feed rate of the FCC additive, and (iii) one or more target operating conditions of the reaction in the reaction zone to reduce the emissions from the FCC unit and to increase a yield of the desulfurized hydrocarbon product in the product stream are determined.
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公开(公告)号：US11473019B2
公开(公告)日：2022-10-18
申请号：US17279856
申请日：2019-09-19
申请人： SHANGHAI SUPEZET ENGINEERING TECHNOLOGY CO., LTD. , JIANGSU BOSONG CHEMICAL TECHNOLOGY CO., LTD. , HANYI SHENFEI NEW MATERIALS CO., LTD. , CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
发明人： Chunyi Li , Lingyun Zhang , Xiaoyu Zhang , Ying Zhang , Kaitian Mao , Hui Li , Chuntian Pang
摘要： A method for catalytic cracking of naphtha is provided. Naphtha is catalytically cracked under the action of a catalyst. The catalyst includes aluminosilicate, alkali metal oxide, alkaline earth metal oxide, TiO2, iron oxide, vanadium oxide and nickel oxide. On the other hand, a rapid separation component is arranged in a disengager of a catalytic cracking reaction device, so that a transport disengaging height is greatly reduced without changing a gas flow and a diameter of the disengager. In addition, the separation efficiency of oil gas and the catalyst is improved.
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54.发明申请公开(公告)号：US20220289643A1
公开(公告)日：2022-09-15
申请号：US17775519
申请日：2020-11-09
摘要： Provided is a method for improving the selectivity of conversion of an oxygenate to low-carbon olefins. A regenerated catalyst from a regenerator enters a pre-hydrocarbon-pooling device where it comes into contact with an activation medium to undergo a pre-hydrocarbon-pooling reaction, forming “hydrocarbon pool” active species. The pre-hydrocarbon-pooled regenerated catalyst leaving the pre-hydrocarbon-pooling device enters a conversion reactor for recycling. By providing the pre-hydrocarbon-pooling device, and performing “pre-hydrocarbon-pooling” treatment on the regenerated catalyst, the regenerated catalyst is enabled to form “hydrocarbon pool” active species and carbon deposition before entering the conversion reactor. This improves the distribution of “hydrocarbon pool” active species and carbon deposition of the catalyst in the conversion reactor, thereby shortening or eliminating the “induction period” of the conversion reaction, and improving the catalytic activity and selectivity of the regenerated catalyst for a conversion of an oxygenate to low-carbon olefins.
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公开(公告)号：US11433369B1
公开(公告)日：2022-09-06
申请号：US17739397
申请日：2022-05-09
申请人： Lyten, Inc.
摘要： A system for post-processing carbon powders includes a fluidized-bed reactor having an interior containing a fluidized-bed region. The system may include a gas feed source, a gas inlet value, a gas-solid separator, and an energy source coupled to the fluidized-bed reactor. Carbon nano-particulates may be loaded, in powder form, into the fluidized-bed region prior to operation. The gas feed source may output a gas-phase mixture into the interior of the fluidized-bed reactor, and the energy source may electromagnetically excite the gas-phase mixture and generate a plasma-phase mixture formed in a plasma region positioned adjacent to or within the interior of the fluidized-bed reactor. The energy source may be positioned at one or more positions relative to the gas inlet valve.
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公开(公告)号：US20220241745A1
公开(公告)日：2022-08-04
申请号：US17587736
申请日：2022-01-28
发明人： DONALD C. HOUSLEY , ROBERT T. CUNNINGHAM , THOMAS J. FLYNN , LUIS G. VELAZQUEZ-VARGAS , JINHUA BAO , JEREMY L. REMUS , ALBERT J. BENNETT
摘要： The present invention relates generally to an apparatus for housing a chemical looping process comprising of at least one fluidized-bed combustor reactor, at least one entrained riser, at least one particle separator, optionally at least one particle holding reactor, at least one moving-bed reactor, at least one standpipe, at least one L-valve system for solid flow control and interconnecting sections.
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57.发明授权公开(公告)号：US11370979B2
公开(公告)日：2022-06-28
申请号：US17242487
申请日：2021-04-28
发明人： Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
摘要： Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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58.发明申请公开(公告)号：US20220195083A1
公开(公告)日：2022-06-23
申请号：US17560211
申请日：2021-12-22
发明人： Jang Woo LEE , Sung Woo KANG , Byung Soon CHUN , Soon Jae KWON
IPC分类号： C08F210/02 , C08F210/14 , C08F2/00 , C08F2/34 , C08F4/6592 , C08F4/659 , C08K5/01 , C08K5/103 , B01J8/00 , B01J8/18
摘要： Disclosed is an antistatic agent for a metallocene olefin polymerization process and a polymerization method using the same, by which discontinuity event due to sheeting or drooling occurring in the olefin polymerization process can be effectively reduced, enabling continuous operation for a long time, and the obtained final product can be applied to various applications including food contact use. The present disclosure includes an olefin polymerization method, which comprises forming a mixture in which an antistatic agent containing diglycerol oleate is mixed with a low molecular weight hydrocarbon, supplying the antistatic agent mixture and a metallocene-based catalyst composition comprising a metallocene catalyst and aluminoxane to two or more polymerization reactors, and polymerizing one or more alpha-olefins in the presence of the antistatic agent mixture and catalyst composition.
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公开(公告)号：US11358110B2
公开(公告)日：2022-06-14
申请号：US17049387
申请日：2019-04-22
发明人： Hiroyuki Ohta
摘要： An aspect of the present invention provides an internal and the like. The internal is easily handled and is capable of yielding a satisfactory defoaming effect. An internal (50) is used in a fluidized bed reaction device (1), in which a first material and a second material are brought into contact with each other and reacted with each other. The internal (50) is attached to a ceiling part of the fluidized bed reaction device (1), and includes a plurality of chains (21).
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60.发明申请公开(公告)号：US20220177616A1
公开(公告)日：2022-06-09
申请号：US17599027
申请日：2020-04-06
申请人： Borealis AG
发明人： Gunter Weickert , Vasileios Kanellopoulos , Eric-Jan Prinsen , Pablo Ivan Aguayo Arellano , Markku Vahteri , Juha Salminen , Jari-Jussi Ruskeeniemi , Ravindra Tupe , Erno Elovainio , Klaus Nyfors
摘要： A process for polymerizing olefin monomer(s) in a gas-solids olefin polymerization reactor comprising a top zone; a middle zone, which comprises a top end in direct contact with said top zone and which is located below said top zone, the middle zone having a generally cylindrical shape; and a bottom zone, which is in direct contact with a bottom end of the middle zone and which is located below the middle zone; comprising the following steps: introducing a fluidization gas stream into the bottom zone; polymerizing olefin monomer(s) in the presence of a polymerization catalyst in a dense phase formed by particles of a polymer of the olefin monomer(s) suspended in an upwards flowing stream of the fluidization gas in the middle zone; introducing a jet gas stream through one or more jet gas feeding ports in a jet gas feeding area of the middle zone at the dense phase in the middle zone of the gas-solids olefin polymerization reactor; wherein the kinetic energy (EJG) input in the reactor by the jet stream is between 1.5 and 50 times higher than the kinetic energy (EFG) input in the reactor by the fluidization gas stream (FG).
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