Patents by Inventor Andrew Rainis

Andrew Rainis 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: 20190105640
    Abstract: A second-stage hydrocracking catalyst is provided, comprising: a) a zeolite beta having an OD acidity of 20 to 400 ?mol/g and an average domain size from 800 to 1500 nm2; b) a zeolite USY having an ASDI between 0.05 and 0.12; c) a catalyst support; and d) 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst provides a hydrogen consumption less than 350 SCFB across a range of synthetic conversions up to 37 wt % when used to hydrocrack hydrocarbonaceous feeds having an initial boiling point greater than 380° F. (193° C.). A second-stage hydrocracking process using the second-stage hydrocracking process is provided. A method to make the second-stage hydrocracking catalyst is also provided.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 11, 2019
    Inventors: Jifei Jia, Andrew Rainis, Theodorus Ludovicus Michael Maesen, Richard Joseph Coser, Yihua Zhang, Thomas Michael Rea
  • Patent number: 10213772
    Abstract: A hydrocracking catalyst is provided comprising: a) greater than 10 wt % of a zeolite USY having: i. a total OD acidity of 0.350 to 0.650 mmol/g; ii. an ASDI between 0.05 and 0.15; iii. a BET surface area greater than 600 m2/g; iv. a SAR greater than 10; v. less than 45 vol % of pores greater than 2 nm; b) a support; and c) at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. A process for hydrocracking using a hydrocracking catalyst to produce middle distillates is provided. A method for making a hydrocracking catalyst is also provided.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: February 26, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Yihua Zhang, Theodorus Ludovicus Michael Maesen, Andrew Rainis, Bao Quoc Le
  • Patent number: 10183282
    Abstract: A second-stage hydrocracking catalyst is provided comprising: a. from 40 wt % to 70 wt % of a zeolite USY having an ASDI from 0.05 to 0.18; b. an amorphous silica alumina; c. a second alumina; and d. 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst has a BET surface area from 450 to 650 m2/g. A second-stage hydrocracking process is provided comprising using the second-stage hydrocracking catalyst to produce middle distillate. A method for making the second-stage hydrocracking catalyst is also provided.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 22, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jifei Jia, Andrew Rainis, Theodorus Ludovicus Michael Maesen, Richard Coser, Yihua Zhang
  • Patent number: 10183286
    Abstract: A second-stage hydrocracking catalyst is provided, comprising: a) a zeolite beta having an OD acidity of 20 to 400 ?mol/g and an average domain size from 800 to 1500 nm2; b) a zeolite USY having an ASDI between 0.05 and 0.12; c) a catalyst support; and d) 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst provides a hydrogen consumption less than 350 SCFB across a range of synthetic conversions up to 37 wt % when used to hydrocrack hydrocarbonaceous feeds having an initial boiling point greater than 380° F. (193° C.). A second-stage hydrocracking process using the second-stage hydrocracking process is provided. A method to make the second-stage hydrocracking catalyst is also provided.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 22, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jifei Jia, Andrew Rainis, Theodorus Luvidocus Michael Maesen, Richard Joseph Coser, Yihua Zhang, Thomas Michael Rea
  • Publication number: 20170043330
    Abstract: A second-stage hydrocracking catalyst is provided, comprising: a) a zeolite beta having an OD acidity of 20 to 400 nmol/g and an average domain size from 800 to 1500 nm2; b) a zeolite USY having an ASDI between 0.05 and 0.12; c) a catalyst support; and d) 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst provides a hydrogen consumption less than 350 SCFB across a range of synthetic conversions up to 37 wt % when used to hydrocrack hydrocarbonaceous feeds having an initial boiling point greater than 380° F. (193° C.). A second-stage hydrocracking process using the second-stage hydrocracking process is provided. A method to make the second-stage hydrocracking catalyst is also provided.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 16, 2017
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jifei Jia, Andrew Rainis, Theodorus Luvidocus Michael Maesen, Richard Joseph Coser, Yihua Zhang, Thomas Michael Rea
  • Publication number: 20160296922
    Abstract: A hydrocracking catalyst is provided comprising: a) greater than 10 wt % of a zeolite USY having: i. a total OD acidity of 0.350 to 0.650 mmol/g; ii. an ASDI between 0.05 and 0.15; iii. a BET surface area greater than 600 m2/g; iv. a SAR greater than 10; v. less than 45 vol % of pores greater than 2 nm; b) a support; and c) at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. A process for hydrocracking using a hydrocracking catalyst to produce middle distillates is provided. A method for making a hydrocracking catalyst is also provided.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 13, 2016
    Applicant: Chevron U.S.A Inc.
    Inventors: Yihua Zhang, Theodorus Ludovicus Michael Maesen, Andrew Rainis, Bao Quoc Le
  • Publication number: 20160214094
    Abstract: A second-stage hydrocracking catalyst is provided comprising: a. from 40 wt % to 70 wt % of a zeolite USY having an ASDI from 0.05 to 0.18; b. an amorphous silica alumina; c. a second alumina; and d. 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst has a BET surface area from 450 to 650 m2/g. A second-stage hydrocracking process is provided comprising using the second-stage hydrocracking catalyst to produce middle distillate. A method for making the second-stage hydrocracking catalyst is also provided.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 28, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jifei Jia, Andrew Rainis, Theodorus Ludovicus Michael Maesen, Richard Coser, Yihua Zhang
  • Patent number: 9187702
    Abstract: The present invention is directed to a hydroprocessing catalyst containing at least one catalyst support, one or more metals, optionally one or more molecular sieves, optionally one or more promoters, wherein deposition of at least one of the metals is achieved in the presence of a modifying agent.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: November 17, 2015
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Bi-Zeng Zhan, Theodorus Maesen, Janine Lichtenberger, Andrew Rainis, Hye-Kyung Timken
  • Patent number: 8431014
    Abstract: The invention provides for a process for dewaxing a waxy hydrocarbon feedstock to form a lubricant oil. The invention is also directed to a catalyst system comprising a hydrotreating catalyst upstream of a dewaxing catalyst, used in the dewaxing of a waxy hydrocarbon feedstock to form a lubricant oil. In particular, the invention is directed to a process and catalyst system designed to maintain yield of lubricant oil product. Specifically, the yield of lubricant oil does not decrease more than 2%, at a target pour point, over a dewaxing temperature range. The hydrotreating catalyst helps prevent aging of the dewaxing catalyst and maintains lubricant oil product yield at a target pour point over a wide temperature range. The hydrotreating catalyst comprises platinum, palladium, or combinations thereof on a low acidity inorganic oxide support where acidity is measured by a decalin conversion of less than 10% at 700° F.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: April 30, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kamala R. Krishna, James N. Ziemer, Andrew Rainis, Joseph A. Biscardi, Thomas V. Harris
  • Patent number: 8173570
    Abstract: A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: May 8, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Theodorus Ludovicus Michael Maesen, Alexander E. Kuperman, Bi-Zeng Zhang, Andrew Rainis, Christopher J. Dillon
  • Patent number: 8163169
    Abstract: A catalyst precursor composition and methods for making such a catalyst precursor are disclosed. The catalyst precursor comprises at least a promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula Av[(MP) (OH)x (L)ny]z (MVIBO4), wherein A is one or more monovalent cationic species, MP is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, MVIB is at least a Group VIB metal, MP:MVIB has an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of ˜450 psig, the catalyst a 700° F.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: April 24, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Theodorus Ludovicus Michael Maesen, Alexander E. Kuperman, Bi-Zeng Zhang, Andrew Rainis
  • Publication number: 20110079540
    Abstract: The invention provides for a process for dewaxing a waxy hydrocarbon feedstock to form a lubricant oil. The invention is also directed to a catalyst system comprising a hydrotreating catalyst upstream of a dewaxing catalyst, used in the dewaxing of a waxy hydrocarbon feedstock to form a lubricant oil. In particular, the invention is directed to a process and catalyst system designed to maintain yield of lubricant oil product. Specifically, the yield of lubricant oil does not decrease more than 2%, at a target pour point, over a dewaxing temperature range. The hydrotreating catalyst helps prevent aging of the dewaxing catalyst and maintains lubricant oil product yield at a target pour point over a wide temperature range. The hydrotreating catalyst comprises platinum, palladium, or combinations thereof on a low acidity inorganic oxide support where acidity is measured by a decalin conversion of less than 10% at 700° F.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Inventors: Kamala R. Krishna, James N. Ziemer, Andrew Rainis, Joseph A. Biscardi, Thomas V. Harris
  • Publication number: 20110000824
    Abstract: The present invention is directed to a hydroprocessing catalyst containing at least one catalyst support, one or more metals, optionally one or more molecular sieves, optionally one or more promoters, wherein deposition of at least one of the metals is achieved in the presence of a modifying agent.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 6, 2011
    Inventors: Bi-Zeng Zhan, Theodorus Maesen, Janine Lichtenberger, Andrew Rainis, Hye-Kyung Timken
  • Publication number: 20090107886
    Abstract: A catalyst precursor composition and methods for making such a catalyst precursor are disclosed. The catalyst precursor comprises at least a promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula Av[(MP) (OH)x (L)ny]z (MVIBO4), wherein A is one or more monovalent cationic species, MP is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, MVIB is at least a Group VIB metal, MP:MVIB has an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of ˜450 psig, the catalyst a 700° F.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 30, 2009
    Inventors: Theodorus Maesen, Alex Kuperman, Bi-Zeng Zhan, Andrew Rainis
  • Publication number: 20090111683
    Abstract: A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 30, 2009
    Inventors: Bi-Zeng Zhan, Alexander Kuperman, Theodorus Maesen, Andrew Rainis, Christopher J. Dillon
  • Publication number: 20070278134
    Abstract: A process is disclosed for producing light neutral base oil having a VI greater than 120 comprising the steps of contacting a hydrocarbonaceous feedstock with a catalyst comprising a low acidity, highly dealuminated ultrastable Y zeolite and a catalytic amount of hydrogenation component to produce a converted fraction and an unconverted fraction boiling above 700° F.; recovering at least a portion of the unconverted fraction; dewaxing at least a portion of the unconverted fraction; separating at least a portion of the dewaxed unconverted fraction into a least a first distillate fraction and a second distillate fraction, said first distillate fraction comprising a lubricating base oil having a viscosity of from about 3 cSt to about 6 cSt at 100° C. and said second distillate fraction having a viscosity of greater than about 6 cSt at 100° C.; and recovering at least a portion of the first distillate fraction.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Inventors: Hye Kyung Timken, Jerome F. Mayer, Arthur J. Dahlberg, Andrew Rainis
  • Patent number: 7150823
    Abstract: Novel methods of treating a Fischer-Tropsch derived hydrocarbon stream with an active filtering catalyst are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Tropsch derived hydrocarbon stream such that plugging of the catalyst beds of a subsequent hydroprocessing process is substantially avoided.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: December 19, 2006
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jerome F. Mayer, Andrew Rainis, Richard O. Moore, Jr.
  • Patent number: 6900365
    Abstract: A catalytic hydrodealkylation/reforming process which comprises contacting a heavy hydrocarbon feedstream under catalytic hydrodealkylation/reforming conditions with a composition comprising borosilicate molecular sieves having a pore size greater than about 5.0 Angstroms and a Constraint Index smaller than about 1.0; further containing a hydrogenation/dehydrogenation component; wherein at least a portion of the heavy hydrocarbon feedstream is converted to a product comprising benzene, toluene, xylenes and ethylbenzene.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 31, 2005
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Cong-Yan Chen, Stacey I. Zones, Andrew Rainis, Dennis J. O'Rear
  • Publication number: 20050004414
    Abstract: Novel methods of treating a Fischer-Tropsch derived hydrocarbon stream with an active filtering catalyst are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Tropsch derived hydrocarbon stream such that plugging of the catalyst beds of a subsequent hydroprocessing process is substantially avoided.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 6, 2005
    Inventors: Jerome Mayer, Andrew Rainis, Richard Moore
  • Patent number: 6759438
    Abstract: Methods for producing a substantially paraffinic Fischer-Tropsch product or a blended Fischer Tropsch product comprising a selected oxygenate concentration, and if required, a selected oxygenate concentration of specific individual oxygenates, are disclosed. The methods of the present invention measure oxygenate concentration using GC-AED. The oxygenate measurements obtained using the GC-AED may be used to adjust and control various processes used to produce, upgrade, or finish Fischer Tropsch products to provide Fischer Tropsch products with a selected oxygenate concentration, and if required, a selected oxygenate concentration of specific individual oxygenates.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: July 6, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: Andrew Rainis, D J O'Rear