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公开(公告)号：US11072747B2
公开(公告)日：2021-07-27
申请号：US16888916
申请日：2020-06-01
Applicant: Lummus Technology Inc.
Inventor： Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: 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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公开(公告)号：US10894922B2
公开(公告)日：2021-01-19
申请号：US16263956
申请日：2019-01-31
Applicant: Lummus Technology Inc.
Inventor： Arun Arora , Marvin I. Greene
IPC: B01J8/20 , C10G65/12 , C10G67/06 , C10G1/00 , C10G47/20 , C10G65/10 , C10G47/14 , C10G3/00 , B01J8/22
Abstract: A process for upgrading vacuum residuum and vacuum gas oil hydrocarbons is disclosed. The process may include: contacting a heavy distillate hydrocarbon fraction and hydrogen with a zeolite selective hydrocracking catalyst in a first ebullated bed hydrocracking reaction zone to convert at least a portion of the vacuum gas oil to lighter hydrocarbons. Contacting a residuum hydrocarbon fraction and hydrogen with a non-zeolite base metal hydroconversion catalyst in a second ebullated bed hydroconversion reaction zone may produce a vapor stream containing unconverted hydrogen, acid gases and volatilized hydrocarbons which may be fed along with the vacuum gas oil in the first ebullated bed hydrocracking zone.
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公开(公告)号：US10731091B2
公开(公告)日：2020-08-04
申请号：US15850893
申请日：2017-12-21
Applicant: Lummus Technology Inc.
Inventor： Ujjal K. Mukherjee , Marvin I. Greene , Mario C. Baldassari
IPC: C10G45/72 , C10G69/02 , C10G67/04 , C10G21/00 , C10G45/20 , B01D3/14 , B01D3/10 , B01D1/28 , B01D3/00
Abstract: Processes and systems for upgrading resid hydrocarbon feeds are disclosed. The process system may operate in two different operating modes, maximum conversion and maximum quality effluent. The process system may be reversibly transitioned between the different operating modes. The system has the ability to reversibly transition between the two modes without shutting down the system or losing production.
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公开(公告)号：US10696907B2
公开(公告)日：2020-06-30
申请号：US16511425
申请日：2019-07-15
Applicant: Lummus Technology Inc.
Inventor： Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: 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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公开(公告)号：US10676411B2
公开(公告)日：2020-06-09
申请号：US15792160
申请日：2017-10-24
Applicant: Lummus Technology Inc.
Inventor： Sukwon Choi , Bala Ramachandran
Abstract: Processes for the production of olefins are disclosed, which may include: contacting a hydrocarbon mixture comprising linear butenes with an isomerization catalyst to form an isomerization product comprising 2-butenes and 1-butenes; contacting the isomerization product with a first metathesis catalyst to form a first metathesis product comprising 2-pentene and propylene, as well as any unreacted C4 olefins, and byproducts ethylene and 3-hexene; and fractionating the first metathesis product to form a C3-fraction and a C5 fraction comprising 2-pentene. The 2-pentene may then be advantageously used to produce high purity 1-butene, 3-hexene, 1-hexene, propylene, or other desired products.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190390117A1
公开(公告)日：2019-12-26
申请号：US16559016
申请日：2019-09-03
Applicant: Lummus Technology Inc.
Inventor： Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel.
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公开(公告)号：US10144682B2
公开(公告)日：2018-12-04
申请号：US15477693
申请日：2017-04-03
Applicant: Lummus Technology Inc.
Inventor： Robert J. Brummer , Thomas Alexander Dwyer
Abstract: A butadiene extraction processes designed for flexible operations, with or without a compressor, is disclosed. The ability to run at both high and low pressures provides added process flexibility.
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公开(公告)号：US10118876B2
公开(公告)日：2018-11-06
申请号：US15230817
申请日：2016-08-08
Applicant: Lummus Technology Inc.
Inventor： Robert John Brummer , Kevin John Schwint , Thomas Alexander Dwyer
Abstract: A process for recovering butadiene from a C4 fraction is disclosed. The process may include: contacting a mixed C4 stream comprising butane, butene, and butadiene, with a solvent comprising an organic solvent and water in a butadiene pre-absorber column to recover an overheads fraction comprising at least a portion of the butane, butene, and water, and a first bottoms fraction comprising the organic solvent, butadiene, and at least a portion of the butene; and feeding the first bottoms fraction to a butadiene extraction unit to recover a butene fraction, a crude butadiene fraction, and a solvent fraction.
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公开(公告)号：US10017431B2
公开(公告)日：2018-07-10
申请号：US14565913
申请日：2014-12-10
Applicant: Lummus Technology Inc.
Inventor： Kevin John Schwint , Robert John Brummer
CPC classification number: C07C5/333 , B01J8/02 , B01J2208/00008 , B01J2208/021 , C07C11/06 , C07C11/09 , C07C11/08 , C07C11/167 , C07C11/18 , C07C11/02 , C07C11/10 , C07C11/173
Abstract: Processes and systems for producing olefins, including: dehydrogenating a first n-alkane to produce a first effluent; and dehydrogenating at least one of a first isoalkane or a second n-alkane to produce a second effluent. The first and second effluents may be compressed and fed to a common separation train to separate the effluents into two or more fractions. In some embodiments, each of the first and second dehydrogenation reaction zones may include two reactors, one reactor in each of the reaction zones operating in a dehydrogenation cycle, one operating in a regeneration cycle, and one operating in a purge or evacuation/reduction cycle. Operation of the reactors in the dehydrogenation cycle is staggered, such that the purge cycle, regeneration cycle, or evacuation/reduction cycle of the reactors may not overlap.
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公开(公告)号：US20180079699A1
公开(公告)日：2018-03-22
申请号：US15706266
申请日：2017-09-15
Applicant: Lummus Technology Inc.
Inventor： Sunil Shashikant Panditrao , Sanjeev Ram
CPC classification number: C07C2/66 , B01J19/245 , B01J2219/00103 , B01J2219/24 , C07C5/333 , C07C7/04 , C07C11/06 , C07C15/085
Abstract: Processes and systems for the integrated production of propylene and an alkylate, such as cumene, may include feeding a hydrocarbon feedstock containing propane to a propane dehydrogenation reaction zone to convert a portion of the propane to propylene. The propylene is separated in a separation system to form a polymer-grade propylene stream, a low purity propylene stream, and a propane stream. The low purity propylene stream is then fed to an alkylation reaction zone where the propylene is reacted to produce an alkylated product and generate a low pressure steam. The low pressure steam may then be fed to the separation system as a heat source, integrating the dehydrogenation system and the alkylation system.
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