Patents by Inventor Lorenzo C. DeCaul

Lorenzo C. DeCaul 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).

  • Patent number: 11198660
    Abstract: In a process for producing a methyl-substituted biphenyl compound, at least one methyl-substituted cyclohexylbenzene compound of the formula: wherein each of m and n is independently 1, 2, or 3, is contacted with hydrogen in the presence of a hydrogenation catalyst to produce a hydrogenation reaction product comprising at least one methyl-substituted bicyclohexane compound, and the methyl-substituted bicyclohexane compound is then contacted with a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising at least one methyl-substituted biphenyl compound.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: December 14, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. Decaul, Michael P. Lanci, Wei Tang
  • Patent number: 10870610
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: December 22, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Lorenzo C. DeCaul, Steven W. Levine, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Publication number: 20200325086
    Abstract: In a process for producing a methyl-substituted biphenyl compound, at least one methyl-substituted cyclohexylbenzene compound of the formula: wherein each of m and n is independently 1, 2, or 3, is contacted with hydrogen in the presence of a hydrogenation catalyst to produce a hydrogenation reaction product comprising at least one methyl-substituted bicyclohexane compound, and the methyl-substituted bicyclohexane compound is then contacted with a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising at least one methyl-substituted biphenyl compound.
    Type: Application
    Filed: February 22, 2017
    Publication date: October 15, 2020
    Inventors: Jihad M. Dakka, Lorenzo C. Decaul, Michael P. Lanci, Wei Tang
  • Patent number: 10654770
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating diisobutylene to produce neopentane. The diisobutylene may be provided by the dimerization of isobutylene.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 19, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Lorenzo C. DeCaul, James R. Lattner
  • Patent number: 10487023
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C6-C7 paraffins.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: November 26, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Lorenzo C. DeCaul, Michele L. Paccagnini, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Publication number: 20190225561
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 25, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, Steven W. Levine, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Publication number: 20190177248
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating diisobutylene to produce neopentane. The diisobutylene may be provided by the dimerization of isobutylene.
    Type: Application
    Filed: August 18, 2017
    Publication date: June 13, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, James R. Lattner
  • Publication number: 20190169092
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C6-C7 paraffins.
    Type: Application
    Filed: August 18, 2017
    Publication date: June 6, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, Michele L. Paccagnini, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Patent number: 9856186
    Abstract: A process is described for converting at least one isomer of a dialkyl-substituted biphenyl compound, such as at least one 2,X? dialkylbiphenyl isomer (where X? is 2?, 3? and/or 4?), into at least one different isomer, 3,3?, 3,4? and/or 4,4? dialkylbiphenyl isomer. The process comprises contacting a feed comprising the dialkyl-substituted biphenyl compound isomer with an acid catalyst under isomerization conditions.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: January 2, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael Salciccioli, Jihad M. Dakka, Emiel de Smit, Neeraj Sangar, Scott J. Weigel, Sumathy Raman, Terry E. Helton, Lorenzo C. DeCaul, Christine N. Elia, Chuansheng Bai, Ranjita Ghose
  • Patent number: 9815767
    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 a C4 to C14 hydrocarbyl, preferably 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: April 25, 2016
    Date of Patent: November 14, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Christine A. Costello, Edmund J. Mozeleski, Pierre Osterrieth, Stephen Zushma, Allen D. Godwin, Diana Smimova, Catherine A. Faler, Victor DeFlorio, Didier A. Naert
  • Patent number: 9809505
    Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 7, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar
  • Publication number: 20170305810
    Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar
  • Patent number: 9758447
    Abstract: In a process for dehydrogenating cyclohexylbenzene and/or alkyl-substituted cyclohexylbenzene compounds, a dehydrogenation catalyst comprising at least one Group 10 metal compound on a support is heated in the presence of hydrogen from a first temperature from 0° C. to 200° C. to a second, higher temperature from 60° C. to 500° C. at a ramp rate no more than 100° C./hour. The dehydrogenation catalyst is contacted with hydrogen at the second temperature for a time from 3 to 300 hours to produce an activated dehydrogenation catalyst. A feed comprising cyclohexylbenzene and/or an alkyl-substituted cyclohexylbenzene compound is then contacted with hydrogen in the presence of the activated dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising biphenyl and/or an alkyl-substituted biphenyl compound.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: September 12, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Gregory J. De Martin, Michael Salciccioli, Neeraj Sangar, Aaron B. Pavlish, Ali A. Kheir, Gary D. Mohr
  • Patent number: 9732013
    Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 15, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John S. Buchanan, Stephen H. Brown, Lorenzo C. DeCaul, Brett T. Loveless, Rohit Vijay, Stephen J. McCarthy, Michel Daage, Mayank Shekhar
  • Patent number: 9725377
    Abstract: This invention relates to process for producing biphenyl esters, the process comprising: (a) contacting a feed comprising toluene, xylene or mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluene, wherein the hydroalkylation catalyst comprises: 1) binder present at 40 wt % or less (based upon weight of final catalyst composition), 2) a hydrogenation component present at 0.2 wt % or less (based upon weight of final catalyst composition), and 3) an acidic component comprising a molecular sieve having a twelve membered (or larger) ring pore opening, channel or pocket and a largest pore dimension of 6.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 8, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Emiel de Smit, Neeraj Sangar, Michael Salciccioli, Jihad M. Dakka, Lorenzo C. DeCaul, Terry E. Helton, Scott J. Weigel
  • Patent number: 9708230
    Abstract: In a process for producing biphenyl compounds, a Cn aromatic hydrocarbon may be hydroalkylated to give C2n cycloalkylaromatic compounds and byproduct Cn saturated cyclic hydrocarbons. The C2n cycloalkylaromatic compounds are dehydrogenated to provide the biphenyl compounds. The Cn saturated cyclic hydrocarbons may also be dehydrogenated back to the corresponding Cn aromatic hydrocarbon, which may be recycled to provide additional feed. Although both the intermediate C2n cycloalkylaromatic compounds and the byproduct Cn saturated cyclic hydrocarbons should be dehydrogenated, at least part of the dehydrogenation of the Cn saturated cyclic hydrocarbons should take place in the absence of C2n or greater hydrocarbons. Thus, dehydrogenation of the byproduct Cn saturated cyclic hydrocarbons should take place at least in part separately from dehydrogenation of the C2n cycloalkylaromatic compounds.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 18, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael Salciccioli, Jihad M. Dakka, Neeraj Sangar, Lorenzo C. DeCaul, Ali A. Kheir
  • Patent number: 9663417
    Abstract: In a process for producing methyl-substituted biphenyl compounds, a feed comprising at least one aromatic hydrocarbon selected from the group consisting of toluene, xylene and mixtures thereof is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes and/or (dimethylcyclohexyl)xylenes. At least part of the hydroalkylation reaction product is then dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 30, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul
  • Patent number: 9580572
    Abstract: A composition is described comprising a mixture of (methylcyclohexyl)toluene isomers having the following formula: wherein the mixture comprises at least 50 wt % in total of the 3,3, 3,4 4,3 and 4,4-isomers of (methylcyclohexyl)toluene.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 28, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Wei Tang
  • Patent number: 9579632
    Abstract: A catalyst composition comprises (i) a support; (ii) a dehydrogenation component comprising at least one metal or compound thereof selected from Groups 6 to 10 of the Periodic Table of Elements; and (iii) tin or a tin compound, wherein the tin is present in an amount of 0.01 wt % to about 0.25 wt %, the wt % based upon the total weight of the catalyst composition.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: February 28, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Terry E. Helton, Keith H. Kuechler, Jenna L. Wallace
  • Patent number: 9556087
    Abstract: In a process for producing methyl-substituted biphenyl compounds, a feed comprising at least one aromatic hydrocarbon selected from the group consisting of toluene, xylene and mixtures thereof is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes and/or (dimethylcyclohexyl)xylenes together with dialkylated C21+ compounds. At least part of the dialkylated C21+ compounds is then removed from the hydroalkylation reaction product to produce a dehydrogenation feed; and at least part of the dehydrogenation feed is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: January 31, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Victor DeFlorio