Patents by Inventor Scott A. Stevenson

Scott A. Stevenson 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: 10583422
    Abstract: In an aspect, a method for the aromatization of hydrocarbons comprises contacting a hydrocarbon feedstream with a catalyst; wherein the catalyst comprises a zeolite comprising Si, Al, and Ge in the framework with Pt deposited thereon; wherein the zeolite further comprises Na; and wherein the catalyst has an Si:Al2 mole ratio of greater than or equal to 125, an Si:Ge mole ratio of 40 to 400, and an Na:Al mole ratio of 0.9 to 2.5, wherein the catalyst has an aluminum content of less than or equal to 0.75 wt % excluding any binder and extrusion aide.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 10, 2020
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Alla Khanmamedova, Scott Stevenson
  • Patent number: 10550342
    Abstract: An integrated process for increasing olefin production is described through which heavy cracker residues of fluid catalytic cracking unit and steam cracking unit are completely mixed, and mixed stream is properly recycled and further combined with atmospheric tower bottoms. Combined stream is deasphalted and hydrotreated to produce a proper feedstock for steam cracking unit for manufacturing light olefin compounds. The integrated process produces higher amount of light olefins than a substantially similar process without processing the heavy cracker residues.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 4, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jose Armando Salazar-Guillen, Michael Huckman, Scott Stevenson
  • Publication number: 20190375696
    Abstract: A process for hydrocracking 2,4-dimethylpentane and/or 2,2,3-trimethylbutane can comprise: contacting a hydrocracking feed stream in the presence of hydrogen with a hydrocracking catalyst, wherein the hydrocracking feed stream comprises at least 0.5 wt % of 2,4-dimethylpentane and/or 2,2,3-trimethylbutane, based upon a total weight of the hydrocracking feed stream; and wherein the hydrocracking catalyst comprises a medium pore zeolite having a pore size of 5-6 A and a silica to alumina molar ratio of 20-75; preferably the hydrocracking catalyst comprises a medium pore zeolite having a pore size of 5-6 A and a silica to alumina molar ratio of 20-75 and a large pore zeolite having a pore size of 6-8 A and a silica to alumina molar ratio of 10-80, wherein the hydrogenation metal is deposited on the medium pore zeolite and the large pore zeolite.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 12, 2019
    Inventors: Ashim Kumar Ghosh, Alla Khanmamedova, Scott A. Stevenson, Luis Aramburo, David L. Sullivan, Cong Nguyen
  • Patent number: 10501388
    Abstract: The invention relates to a process for producing benzene comprising the steps of: (a) providing a hydrocracking feed stream comprising C5-C12 hydrocarbons, (b) contacting the hydrocracking feed stream in the presence of hydrogen with a hydrocracking catalyst under process conditions including a temperature of 425-580° C., a pressure of 300-5000 kPa gauge and a Weight Hourly Space Velocity of 3-30 h?1 to produce a hydrocracking product stream comprising BTX and (c) separating the BTX from the hydrocracking product stream, wherein the hydrocracking catalyst comprises a shaped body comprising a zeolite and a binder and a hydrogenation metal deposited on the shaped body, wherein the amount of the hydrogenation metal is 0.010-0.30 wt-% with respect to the total catalyst and wherein the zeolite is ZSM-5 having a silica (SiO2) to alumina (Al2O3) molar ratio of 25-75.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: December 10, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Alla Khanmamedova, Scott A. Stevenson, Dustin Fickel
  • Patent number: 10494581
    Abstract: The present invention relates to a process for producing LPG from a hydrocarbon feed comprising polyaromatics, the process comprising contacting said feed in the presence of hydrogen with a M/A/zeolite catalyst under hydrocracking process conditions.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: December 3, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Luis Aramburo, Dustin Farmer, Scott A. Stevenson
  • Publication number: 20190359541
    Abstract: An integrated process for forming a combined feedstock stream comprising catalytically cracking a first hydrocarbon feedstock to form a full range cracked full naphtha stream and a first light olefins stream, steam cracking a second hydrocarbon feedstock to form a pyrolysis gasoline stream and a second light olefins stream mixing at least a portion of each of the full range cracked naphtha stream and the pyrolysis gasoline stream to form a combined stream, hydro-processing the combined stream to form a hydro-processed combined stream splitting the hydro-processed combined stream into a C5/C6 stream, and a first aromatic rich stream, splitting the first aromatic rich stream into a second aromatic rich stream and a heavy oil stream.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 28, 2019
    Inventors: Sheetal BAFNA, Sanjeev DESHPANDE, Michael HUCKMAN, Scott STEVENSON
  • Publication number: 20190351395
    Abstract: In an aspect, a method for the aromatization of hydrocarbons comprises contacting a hydrocarbon feedstream with a catalyst; wherein the catalyst comprises a zeolite comprising Si, Al, and Ge in the framework with Pt deposited thereon; wherein the zeolite further comprises Na; and wherein the catalyst has an Si:Al2 mole ratio of greater than or equal to 125, an Si:Ge mole ratio of 40 to 400, and an Na:Al mole ratio of 0.9 to 2.5, wherein the catalyst has an aluminum content of less than or equal to 0.75 wt % excluding any binder and extrusion aide.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Alla Khanmamedova, Scott Stevenson
  • Publication number: 20190337929
    Abstract: The present invention relates inter alia to a compound of formula (I) Wherein R1, R2, R3 and Z are as defined in the specification and to compositions comprising the same and to the use of the compounds and to compositions of the compounds in treatment, for example in the treatment of fibrotic diseases or interstitial lung diseases, in particular idiopathic pulmonary fibrosis.
    Type: Application
    Filed: December 23, 2016
    Publication date: November 7, 2019
    Inventors: Iain Walters, Louise Birch, Joseph Hill-Cousins, Stephen Paul Collingwood, Christopher Scott Stevenson
  • Patent number: 10427141
    Abstract: In an embodiment, A catalyst comprises a zeolite comprising Si, Al, and Ge in the framework with Pt deposited thereon; wherein the catalyst has an Si:Al2 mole ratio of greater than or equal to 125, an Si:Ge mole ratio of 40 to 400, and an Na:Al mole ratio of 0.9 to 2.5; wherein the catalyst has an aluminum content of less than or equal to 0.75 wt %; wherein the catalyst is non-acidic.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 1, 2019
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Alla Khanmamedova, Scott Stevenson
  • Publication number: 20190247837
    Abstract: A method for preparing a hydrocracking catalyst comprising: (i) providing a shaped body comprising a zeolite and a binder, wherein the shaped body has been obtained by shaping, calcination and cooling, wherein the zeolite is ZSM-5 having a silica (SiO2) to alumina (Al2O3) molar ratio of 25-75; (ii) optionally drying the shaped body at a temperature of 100-300° C. for a period of at least 1 hour; (iii) depositing a hydrogenation metal on the shaped body by an impregnation for a period of at most 2 hours such that the amount of the hydrogenation metal is 0.010-0.30 wt % with respect to the total catalyst; (iv) optionally rinsing the metal deposited shaped body with water; and (v) heat-treating the metal deposited shaped body in air at a temperature of 250-300° C. for a period of 1-5 hours; wherein the catalyst comprises a total of less than 0.05 wt % sodium and cesium.
    Type: Application
    Filed: October 17, 2017
    Publication date: August 15, 2019
    Inventors: Ashim Kumar GHOSH, Alla KHANMAMEDOVA, Scott A. STEVENSON
  • Publication number: 20190070594
    Abstract: In an embodiment, A catalyst comprises a zeolite comprising Si, Al, and Ge in the framework with Pt deposited thereon; wherein the catalyst has an Si:Al2 mole ratio of greater than or equal to 125, an Si:Ge mole ratio of 40 to 400, and an Na:Al mole ratio of 0.9 to 2.5; wherein the catalyst has an aluminum content of less than or equal to 0.75 wt %; wherein the catalyst is non-acidic.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: Alla Khanmamedova, Scott Stevenson
  • Publication number: 20190071399
    Abstract: The present invention relates inter alia to a compound of formula (I) wherein R1, R2 and R3, are as defined in the specification and to compositions comprising the same and to the use of the compounds and to compositions of the compounds in treatment, for example in the treatment of fibrotic diseases or interstitial lung diseases, in particular idiopathic pulmonary fibrosis.
    Type: Application
    Filed: March 8, 2017
    Publication date: March 7, 2019
    Inventors: Iain Walters, Louise Birch, Stephen Paul Collingwood, Christopher Scott Stevenson
  • Publication number: 20190055482
    Abstract: An integrated process for increasing olefin production is described through which heavy cracker residues of fluid catalytic cracking unit and steam cracking unit are completely mixed, and mixed stream is properly recycled and further combined with atmospheric tower bottoms. Combined stream is deasphalted and hydrotreated to produce a proper feedstock for steam cracking unit for manufacturing light olefin compounds. The integrated process produces higher amount of light olefins than a substantially similar process without processing the heavy cracker residues.
    Type: Application
    Filed: January 31, 2017
    Publication date: February 21, 2019
    Inventors: Jose Armando SALAZAR-GUILLEN, Michael HUCKMAN, Scott STEVENSON
  • Publication number: 20190055483
    Abstract: A process for increasing olefin production from refinery that processes hydrocarbon streams that are rich in aromatic compounds and includes steam cracking and hydrotreating an aromatically rich feedstock to produce a hydrotreated pyrolysis gasoline stream and light pyrolysis oil byproduct, saturating at least one additional naphtha/hydrocarbon stream together with the hydrotreated pyrolysis gasoline stream or together with the light pyrolysis oil byproducts to form a first naphthene stream, and steam cracking the first naphthene stream to produce olefins.
    Type: Application
    Filed: February 9, 2017
    Publication date: February 21, 2019
    Inventors: Sheetal BAFNA, Jose Armando SALAZAR-GUILLEN, Sanjeev DESHPANDE, Scott STEVENSON, Michael HUCKMAN, Joseph W. SCHROER
  • Patent number: 10207255
    Abstract: In an embodiment, a method for making a catalyst, comprises: forming a mixture comprising a germanium source, an alkali metal source, an aluminum source, and a silica source, wherein the mixture has a pH; adjusting the pH of the mixture to a value of greater than or equal to 9.5; crystallizing and calcining the mixture to form a zeolite; depositing platinum on the zeolite; and calcining the zeolite to form the final catalyst. The final catalyst is non-acidic and has an aluminum content of less than or equal to 0.75 wt % based on the total weight of the final catalyst excluding any binder and extrusion aide and a Si:Al2 mole ratio of greater than or equal to 125.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: February 19, 2019
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Alla Khanmamedova, Scott Stevenson
  • Publication number: 20180353944
    Abstract: The invention relates to a process for preparing a hydrocracking catalyst, comprising (i) contacting a shaped body comprising a zeolite and a binder with an aqueous solution of a hydrogenation metal compound which is a complex or a salt of a hydrogenation metal to deposit the hydrogenation metal onto the shaped body, wherein the aqueous solution comprises an ammonium salt and (ii) calcining the shaped body obtained by step (i).
    Type: Application
    Filed: December 5, 2016
    Publication date: December 13, 2018
    Inventors: Alla Khanmamedova, Ashim Kumar Ghosh, Scott Stevenson, David Sullivan, Pooja Bajaj
  • Patent number: 10106474
    Abstract: The disclosure is for a process for producing propylene and hexene (along with ethylene, pentenes, product butenes, heptenes and octenes) by metathesis from butenes (iso-, 1- and cis and trans 2-) and pentenes and then aromatizing the hexenes (along with higher olefins, such as heptenes and octenes) to benzene (along with toluene, xylenes, ethylbenzene and styrene). Since the desired products of the metathesis reaction are propylene and hexene, the feed to the metathesis reaction has a molar ratio for 1-butene:2-butene which favors production of propylene and 3-hexene with the concentration of hexenes and higher olefins in the metathesis product being up to 30 mole %. An isomerization reactor may be used to obtain the desired molar ratio of 1-butene:2-butene for the feed composition into the metathesis reactor. After the metathesis reaction, of hexene and higher olefins are separated for aromatization to benzene and other aromatics.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 23, 2018
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Jaap W. van Hal, Scott A. Stevenson, Jim Allman, David L. Sullivan, Travis Conant
  • Publication number: 20180280944
    Abstract: The present invention relates to a process for producing LPG from a hydrocarbon feed comprising polyaromatics, the process comprising contacting said feed in the presence of hydrogen with a M/zeolite catalyst under hydrocracking process conditions.
    Type: Application
    Filed: September 15, 2016
    Publication date: October 4, 2018
    Inventors: Luis Aramburo, Maikel van Iersel, Dustin Farmer, Scott A. Stevenson, Emiel van Kimmenade
  • Publication number: 20180282638
    Abstract: The present invention relates to a process for producing monoaromatic hydrocarbons from a hydrocarbon feed comprising polyaromatics, the process comprising contacting said feed in the presence of hydrogen with a M/A/zeolite catalyst under hydrocracking process conditions.
    Type: Application
    Filed: September 15, 2016
    Publication date: October 4, 2018
    Inventors: Luis Aramburo, Dustin Farmer, Scott A. Stevenson
  • Patent number: D837875
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: January 8, 2019
    Assignee: MEMORIAL UNIVERSITY OF NEWFOUNDLAND
    Inventors: Andrew Staniland, Scott Stevenson, Andrew Fisher, Nick Krouglicof