Patents by Inventor Jihad Dakka

Jihad Dakka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240124792
    Abstract: Provided herein are systems and methods for converting CO2 and a reduction gas such as H2 or a hydrocarbon to mixtures of paraffins and aromatics suitable for use as aviation fuel.
    Type: Application
    Filed: November 20, 2023
    Publication date: April 18, 2024
    Inventors: Lubo Zhou, Chi Chen, Qiyuan Wu, Stafford W. Sheehan, Namal de Silva, Mahluli Moyo, Jihad Dakka, David DeVilliers
  • Patent number: 10464864
    Abstract: In a process for upgrading an ethane-containing C5- paraffin stream, the paraffin stream is contacted 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 is then with an oligomerization catalyst under conditions to oligomerize at least part of the ethylene and produce a second product stream comprising gasoline and/or distillate boiling range hydrocarbons. Gasoline and/or distillate boiling range hydrocarbons are then recovered from the second product stream and at least a part of any residual C5- paraffin stream is recycled to the selective oxidation step.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 5, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Guang Cao, Jihad Dakka
  • Publication number: 20180282241
    Abstract: In a process for the catalytic alkylation of an olefin with an isoparaffin, an olefin-containing feed is contacted with an isoparaffin-containing feed under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework types, wherein the olefin-containing feed consists essentially of pentenes.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventors: Vinit Choudhary, Jihad Dakka, Matthew S. Mettler, Ivy D. Johnson, Joshua W. Allen, Ajit B. Dandekar, Cynthia F. Omilian
  • Publication number: 20180170826
    Abstract: In a process for upgrading an ethane-containing C5? paraffin stream, the paraffin stream is contacted 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 is then with an oligomerization catalyst under conditions to oligomerize at least part of the ethylene and produce a second product stream comprising gasoline and/or distillate boiling range hydrocarbons. Gasoline and/or distillate boiling range hydrocarbons are then recovered from the second product stream and at least a part of any residual C5? paraffin stream is recycled to the selective oxidation step.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 21, 2018
    Inventors: Guang CAO, Jihad DAKKA
  • Patent number: 8829093
    Abstract: Provided are compounds of the following: wherein R1 is a saturated or unsaturated cyclic hydrocarbon optionally substituted with an alkyl and/or an OXO-ester, and R2 is the residue of a C4 to C14 OXO-alcohol. Also provided are processes for making the compounds and plasticized polymer compositions containing said compounds.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: September 9, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad Dakka, Lorenzo C. DeCaul, Christine A. Costello, Edmund J. Mozeleski, Pierre J. Osterrieth, Diana S. Smirnova, Stephen Zushma, Allen D. Godwin
  • Publication number: 20120022197
    Abstract: Provided are compositions, processes for making, and processes for using mixed triglycerides as plasticizers. Triglyceride plasticizers can be produced by recovery of linear or branched C4 to C13 aldehydes from a hydroformylation product, oxidation to linear or branched C4 to C13 acids with oxygen and/or air, recovery of the resulting acids, combining the linear or branched C4 to C13 acid with benzoic acid, toluic acid or a combination thereof to form a mixed acid blend, and esterification of the mixed acid blend with glycerol, wherein the total carbon number of the triester groups ranges from 20 to 25 and includes from 1 to 2 aryl groups for greater than or equal to 45 wt % of the plasticizer. Such plasticizers can be phthalate-free and provide outstanding properties including a suitable melting or pour point, glass transition temperature, low volatility, increased compatibility, increased hydrolytic stability, and excellent low temperature properties in a range of polymeric resins.
    Type: Application
    Filed: September 9, 2010
    Publication date: January 26, 2012
    Inventors: Jihad Dakka, Edmund Mozeleski, Lisa Baugh, Allen Godwin, Manika Varma-Nair
  • Patent number: 7868201
    Abstract: A process for the oxidation of hydrocarbons comprises contacting the hydrocarbon with an oxygen-containing gas in the presence of a catalyst comprising a microporous solid support, preferably a zeolite, having from 8- to 12-ring open windows and comprising non-framework metal cations selected from manganese, iron, cobalt, vanadium, chromium, copper, nickel, and ruthenium, and mixtures thereof, providing that the oxygen-containing gas does not contain significant amounts of added hydrogen. The catalyst is novel and forms part of the invention. The process may be used for oxidation of alkanes, cycloalkanes, benzene and alkylbenzenes, and is suitable for use in regioselective terminal oxidation of straight chain alkanes and for selective oxidation/separation of p-dialkylbenzenes from an alkylbenzene mixture, for example, p-xylene from an isomeric mixture of xylenes.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: January 11, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Bi-Zeng Zhan, Bjorn Moden, Jihad Dakka, Jose Santiesteban, Sebastian C. Reyes, Enrique Iglesia
  • Publication number: 20080086018
    Abstract: A process for producing phenol and methyl ethyl ketone comprises contacting benzene with a C4 alkylating agent under alkylation conditions with catalyst comprising zeolite beta or a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom to produce an alkylation effluent comprising sec-butylbenzene. The sec-butylbenzene is then oxidized to produce a hydroperoxide and the hydroperoxide is decomposed to produce phenol and methyl ethyl ketone.
    Type: Application
    Filed: August 5, 2005
    Publication date: April 10, 2008
    Inventors: Jane Cheng, John Buchanan, Doron Levin, Michael Steckel, Jihad Dakka, James Stokes, John Robbins, Jon Stanat, Charles Smith, Jose Santiesteban
  • Publication number: 20070265476
    Abstract: The present invention relates to a process for producing phenol and a ketone of general formula R1COCH2R2 (I), in which R1 and R2 each independently represent an alkyl group having from 1 to 4 carbon atoms, said process comprising: (a) providing an alkylbenzene feedstock comprising (i) an alkylbenzene of general formula (II) in which R1 and R2 have the same meaning as in formula (I) and (ii) at least one structural isomer of said alkylbenzene of formula (II) in an amount of at least 0.
    Type: Application
    Filed: December 27, 2005
    Publication date: November 15, 2007
    Inventors: Jihad Dakka, Doron Levin, Jon Stanat
  • Publication number: 20070260020
    Abstract: Limiting the sulphur level in olefin feedstocks to zeolite-catalysed oligomerization enhances selectivity to trimer and catalyst life and activity.
    Type: Application
    Filed: June 18, 2007
    Publication date: November 8, 2007
    Inventors: Jihad Dakka, Georges Mathys, Marc Puttemans
  • Publication number: 20070249883
    Abstract: In a process for oligomerizing an olefinic hydrocarbon feedstock comprising sulfur-containing molecules, the feedstock is contacted in the absence of hydrogen with a first metal oxide catalyst at a temperature in excess of 150° C. and then is contacted under olefin oligomerization conditions with a second catalyst comprising a crystalline molecular sieve, such as ZSM-22 or ZSM-57.
    Type: Application
    Filed: June 29, 2007
    Publication date: October 25, 2007
    Inventors: Jihad Dakka, Hans Goris, Georges Mathys, Stephen Brown, Bruce Cook
  • Publication number: 20070191654
    Abstract: Sulphur-containing olefinic feedstocks are oligomerized over zeolite catalysts.
    Type: Application
    Filed: January 9, 2007
    Publication date: August 16, 2007
    Inventors: Jihad Dakka, Hans Goris, Georges Mathys, Roger Eijkhoudt, Marc Puttemans, Stephen Brown
  • Publication number: 20070093683
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: December 12, 2006
    Publication date: April 26, 2007
    Inventors: Larry Iaccino, Jeevan Abichandani, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Shifang Luo, Gary Mohr
  • Publication number: 20070004944
    Abstract: A process for the oxidation of hydrocarbons comprises contacting the hydrocarbon with an oxygen-containing gas in the presence of a catalyst comprising a microporous solid support, preferably a zeolite, having from 8- to 12-ring open windows and comprising non-framework metal cations selected from manganese, iron, cobalt, vanadium, chromium, copper, nickel, and ruthenium, and mixtures thereof, providing that the oxygen-containing gas does not contain significant amounts of added hydrogen. The catalyst is novel and forms part of the invention. The process may be used for oxidation of alkanes, cycloalkanes, benzene and alkylbenzenes, and is suitable for use in regioselective terminal oxidation of straight chain alkanes and for selective oxidation/separation of p-dialkylbenzenes from an alkylbenzene mixture, for example, p-xylene from an isomeric mixture of xylenes.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 4, 2007
    Applicants: The Regents of the University of California, Exxon Mobil Research and Engineering Company
    Inventors: Bi-Zeng Zhan, Bjorn Moden, Jihad Dakka, Jose Santiesteban, Sebastian Reyes, Enrique Iglesia
  • Publication number: 20060293544
    Abstract: The present invention is related to a hydrocarbon oxidation process. The process comprises bringing one or more hydrocarbons into contact with a source of oxygen in the presence of a radical initiator and a catalyst. The catalyst comprises an organic metal complex located on a catalyst support, and is obtained by partial decomposition of the organic metal complex. For example, the process can be used to produce dimethyl carbonate from dimethoxy methane. The invention is also related to a partially decomposed catalyst that comprises a silica support and an organic metal complex, wherein at least 5% of the organic compound remains in the catalyst. The organic metal complex comprises an organic compound and a metal-based compound wherein the metal is selected from copper, nickel, and combinations thereof.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 28, 2006
    Inventors: Jihad Dakka, Sabato Miseo, Stuart Soled, Jose Santiesteban, Joseph Baumgartner, Michiel Van Vliet, Roger Sheldon
  • Publication number: 20060270881
    Abstract: The invention relates to a process for producing alkylated aromatic hydrocarbons, preferably with an oxygen or sulfur containing alkylating agent, in the presence of a multi-component molecular sieve catalyst composition that includes a molecular sieve and an active metal oxide. The invention is also directed to methods of making and formulating the multi-component molecular sieve catalyst composition useful in producing alkylated aromatics.
    Type: Application
    Filed: March 29, 2006
    Publication date: November 30, 2006
    Inventors: Jihad Dakka, James Vartuli, John Buchanan, Jose Santiesteban, Doron Levin, Lorenzo DeCaul
  • Publication number: 20060149104
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: February 27, 2006
    Publication date: July 6, 2006
    Inventors: Gary Mohr, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Larry Iaccino, Shifang Luo
  • Publication number: 20050143613
    Abstract: This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.
    Type: Application
    Filed: November 12, 2004
    Publication date: June 30, 2005
    Inventors: Jihad Dakka, John Buchanan, Robert Crane, Christine Elia, Xiaobing Feng, Larry Iaccino, Gary Mohr, Brenda Raich, Jose Santiesteban, Lei Zhang
  • Publication number: 20050075524
    Abstract: A process is provided for the production of xylenes from reformate by reactive distillation. The process is carried out by methylating the benzene/toluene present in the reformate in a reactive distillation zone and under reactive distillation conditions to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 7, 2005
    Inventors: Xiaobing Feng, John Buchanan, Robert Crane, Jihad Dakka, Larry Iaccino, Gary Mohr
  • Publication number: 20050020865
    Abstract: Limiting the sulphur level in olefin feedstocks to zeolite-catalysed oligomerization enhances selectivity to trimer and catalyst life and activity.
    Type: Application
    Filed: October 23, 2002
    Publication date: January 27, 2005
    Inventors: Jihad Dakka, Georges Mathys, Marc Puttemans