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公开(公告)号：US20230092672A1
公开(公告)日：2023-03-23
申请号：US18059036
申请日：2022-11-28
Applicant: ExxonMobil Research and Engineering Company
Inventor： Takayuki Iida , Jihad M. Dakka , Brandon M. Carcuffe , Aaron Peters
Abstract: Provided herein are methods for hydroisomerization of a hydrocarbon feedstock comprising contacting the hydrocarbon feedstock with hydrogen and a catalyst to yield a hydrocarbon product having an increase in branched hydrocarbons relative to the hydrocarbon feedstock. The present catalysts comprise a heteroatom-doped Beta zeolite having a trivalent cation as a framework metal oxide, an extra-framework species comprised of cerium and/or cobalt, and from 0.01 to 1.5 wt. % of a group VIII or VIB metal, or a combination thereof.
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公开(公告)号：US20210179511A1
公开(公告)日：2021-06-17
申请号：US17077059
申请日：2020-10-22
Applicant: ExxonMobil Research and Engineering Company
Inventor： Kun Wang , Jihad M. Dakka
Abstract: A method may include reacting at least a naphtha range alkane with oxygen and to produce oxygenate products; reacting at least a portion of the oxygenate products to produce condensed products; and reacting at least a portion of the condensed products with at least hydrogen to produce a distillate range product.
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公开(公告)号：US10919830B2
公开(公告)日：2021-02-16
申请号：US16738624
申请日：2020-01-09
Applicant: ExxonMobil Research and Engineering Company
Inventor： Jihad M. Dakka , Michael J. Sikorsky , Aruna Ramkrishnan , Chuansheng Bai , Anita S. Lee , Preeti Kamakoti , Anjaneya S. Kovvali , Jenna L. Walp
IPC: C07C41/09 , C07C29/00 , C07C31/00 , C07C43/00 , B01J8/00 , B01J8/02 , C07C29/153 , B01J20/02 , B01J21/04 , B01J23/80 , C07C31/04 , C07C43/04
Abstract: Systems and methods are provided for conversion of gas phase reactants including CO and H2 to C2+ products using multiple catalysts in a single reactor while reducing or minimizing deactivation of the catalysts. Separate catalysts can be used that correspond to a first catalyst, such as a catalyst for synthesis of methanol from synthesis gas, and a second catalyst, such as a catalyst for conversion of methanol to a desired C2+ product. The separate catalysts can be loaded into the reactor in distinct layers that are separated by spacer layers. The spacer layers can correspond to relatively inert particles, such as silica particles. Optionally, the spacer layer can include an adsorbent, such as boron supported on alumina or boron carbide particles. The adsorbent can be suitable for selective adsorption of the one or more reaction products (such as one or more reaction by-products), to allow for further reduction or minimization of the deactivation of the conversion catalysts.
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公开(公告)号：US10450242B2
公开(公告)日：2019-10-22
申请号：US15834183
申请日：2017-12-07
Applicant: ExxonMobil Research and Engineering Company
Inventor： Guang Cao , Jihad M. Dakka
Abstract: A process for upgrading an ethane-containing C5− paraffin stream comprises contacting the paraffin stream with an oxygen containing gas in the presence of a selective oxidation catalyst under conditions to selectively oxidize at least part of the ethane in the paraffin stream and produce a first product stream comprising ethylene. At least part of the first product stream may then be contacted with an isoparaffin-containing feed in the presence of a solid alkylation catalyst and under conditions to alkylate at least part of the isoparaffin with at least part of the ethylene and produce a second product stream comprising C6+ alkylate. Alternatively, at least part of the ethylene in the first product stream may be dimerized before the alkylation step.
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公开(公告)号：US10421699B2
公开(公告)日：2019-09-24
申请号：US15839959
申请日：2017-12-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Jihad M. Dakka , David B. Spry , Cynthia F. Omilian , Matthew S. Ide , Jenna L. Walp , Ralph C. Dehaas
IPC: C07C2/86 , C07C2/02 , C07C1/24 , C07C2/12 , C07C2/62 , C07C31/12 , C07C31/125 , C07C29/50 , B01J29/70 , C07C5/02 , C07C29/132 , C07C5/03 , C07C5/27 , C07C407/00 , C10G45/58 , C10G50/00 , C10G69/12 , C10G3/00 , B01J29/80 , B01J29/50
Abstract: Systems and methods are provided for forming alkylate from a tertiary alcohol feed. Olefins for the alkylation reaction can be generated from a portion of the tertiary alcohol feed. The tertiary alcohol feed can be obtained, for example, by selective oxidation to convert a portion of an isoparaffin-containing feed into alcohol, such as conversion of isobutane to t-butyl alcohol. The alcohol can then be converted to an alkene, such as conversion of t-butyl alcohol to isobutene, in the alkylation reaction environment in the presence of a solid acid catalyst. The solid acid catalyst can then facilitate dimerization of the alkenes (e.g. isobutene) to form C8+ olefins (e.g. isooctene). A catalyst having an MWW framework is an example of a suitable solid acid catalyst.
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Patent Agency Ranking
公开(公告)号：US10287230B2
公开(公告)日：2019-05-14
申请号：US15829008
申请日：2017-12-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Michael P. Lanci , Joshua W. Allen , Jarid M. Metz , Victor DeFlorio , Jihad M. Dakka , Bryan A. Patel , Michael Salciccioli , Michael W. Weber , Stephen Zushma
Abstract: A process for selective oxidation of dimethyl-1,1′-biphenyl(s) to form methyl-1,1′-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1′-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1′-biphenyl(s) into one or more methyl-1,1′-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1′-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1′-biphenyl isomers, or (iii) precipitating the methyl-1,1′-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1′-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing catalysts.
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公开(公告)号：US20200095510A1
公开(公告)日：2020-03-26
申请号：US16580801
申请日：2019-09-24
Applicant: ExxonMobil Research and Engineering Company
Inventor： William J. Novak , Kirsten E. Schutt , Jihad M. Dakka , Hyung Rae Kim , Xiaochun Xu
Abstract: The present disclosure relates to processes for producing biofuel compositions by processing hydrocarbon co-feed and a bio-oil obtained via hydrothermal liquifaction (HTL) of a cellulosic biomass to form an HTL oil. The cellulosic mass can be processed at an operating temperature of about 425° C. or less and an operating pressure of about 200 atm or less. The HTL oil is co-processed with a hydrocarbon co-feed (e.g., petroleum fraction) in a cracking unit, such as an FCC unit, a coker unit or a visbreaking unit, in the presence of a catalyst to produce a cracked product (biofuel). The bio content of the cracked product provides RIN credits for the cracked product.
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公开(公告)号：US20180162788A1
公开(公告)日：2018-06-14
申请号：US15839959
申请日：2017-12-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Jihad M. Dakka , David B. Spry , Cynthia F. Omilian , Matthew S. Ide , Jenna L. Walp , Ralph C. Dehaas
Abstract: Systems and methods are provided for forming alkylate from a tertiary alcohol feed. Olefins for the alkylation reaction can be generated from a portion of the tertiary alcohol feed. The tertiary alcohol feed can be obtained, for example, by selective oxidation to convert a portion of an isoparaffin-containing feed into alcohol, such as conversion of isobutane to t-butyl alcohol. The alcohol can then be converted to an alkene, such as conversion of t-butyl alcohol to isobutene, in the alkylation reaction environment in the presence of a solid acid catalyst. The solid acid catalyst can then facilitate dimerization of the alkenes (e.g. isobutene) to form C8+ olefins (e.g. isooctene). A catalyst having an MWW framework is an example of a suitable solid acid catalyst.
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公开(公告)号：US20220401922A1
公开(公告)日：2022-12-22
申请号：US17349986
申请日：2021-06-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Scott J. Weigel , Megan E. Witzke , Wesley Sattler , Brandon M. Carcuffe , Jihad M. Dakka , Ryan S. Dugan
Abstract: Tungstated zirconium catalysts for paraffin isomerization may comprise: a mixed metal oxide that is at least partially crystalline and comprises tungsten, zirconium, and a variable oxidation state metal selected from Fe, Mn, Co, Cu, Ce, Ni, and any combination thereof. The mixed metal oxide comprises about 5 wt. % to about 25 wt. % tungsten, about 40 wt. % to about 70 wt. % zirconium, and about 0.01 wt. % to about 5 wt. % variable oxidation state metal, each based on a total mass of the mixed metal oxide. The mixed metal oxide has a total surface area of about 50 m2/g or greater as measured according to ISO 9277, and at least one of the following: an ammonia uptake of about 0.05 to about 0.3 mmol/g as measured by temperature programmed adsorption/desorption, or a collidine uptake of about 100 μmol/g or greater as measured gravimetrically.
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公开(公告)号：US20220145188A1
公开(公告)日：2022-05-12
申请号：US17453191
申请日：2021-11-02
Applicant: ExxonMobil Research and Engineering Company
Inventor： Hyung R. Kim , Jihad M. Dakka , Xiaochun Xu
Abstract: Systems and methods are provided for co-processing of biomass oil in a fluid catalytic cracking (FCC) system that include recovering an additional source of H2 or synthesis gas from the overhead product gas stream. The additional H2 can be used to partially hydrogenate biomass oil prior to co-processing the biomass oil in the fluid catalytic cracking system. Additionally or alternately, the additional synthesis gas can represent an additional yield of products from the process, such as an additional yield that can be used for synthesis of further liquid products.
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