Patents by Inventor Manhua Lin

Manhua Lin 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: 20240351009
    Abstract: Disclosed is a catalyst system, and its methods of preparation for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding C3 to C4 aliphatic alcohols that are derivable from biomass, such as, propanols, propanediols, and isobutanol, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where a C3 aliphatic alcohol is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid.
    Type: Application
    Filed: September 20, 2022
    Publication date: October 24, 2024
    Inventors: Manhua Lin, Waisi Eng
  • Patent number: 11738333
    Abstract: Disclosed is a catalyst system, its methods of preparation and its use for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding an alcohol or a diol selected from the group consisting of propanol, propanediol and isobutanol that is derivable from biomass, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where one of 1-propanol, or 1,2-propanediol or 1,3-propanediol or a mixture thereof is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 29, 2023
    Assignee: EverNu Technology, LLC
    Inventors: Manhua Lin, Waisi Eng
  • Publication number: 20190308174
    Abstract: Disclosed is a catalyst system, its methods of preparation and its use for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding an alcohol or a diol selected from the group consisting of propanol, propanediol and isobutanol that is derivable from biomass, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where one of 1-propanol, or 1,2-propanediol or 1,3-propanediol) or a mixture thereof is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Inventors: Manhua Lin, Waisi Eng
  • Patent number: 10300464
    Abstract: Disclosed is a method for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid, comprising subjecting the corresponding C3 to C5 aliphatic alcohols that are derivable from biomass, to a vapor phase process over the catalytic system in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. The catalyst system comprises multi-catalytic zones, in each of which the composition of the co-feed and other reaction parameter can be independently controlled.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 28, 2019
    Assignee: EverNu Technology, LLC
    Inventors: Manhua Lin, Wai-si Eng
  • Patent number: 9144786
    Abstract: A catalyst, its method of preparation and its use for producing aliphatic ketones by subjecting alkanes C3 to C9 to a gas phase catalytic oxidation in the presence of air or oxygen, and, optionally, steam and/or one or more diluting gases. The catalyst comprises a catalytically active mixed metal oxide phase and a suitable support material onto and/or into which the active catalytic phase is dispersed.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 29, 2015
    Assignee: Ever Nu Technology, LLC
    Inventors: Manhua Lin, Xiang Wang, Younghoon Yeom
  • Publication number: 20150266005
    Abstract: Disclosed is a catalyst system, its methods of preparation and its use for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding C3 to C5 aliphatic alcohols that are derivable from biomass, such as, propanols, propanediols, and isobutanol, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where a C3 aliphatic alcohol (1-propanol, 2-propanol, or 1,2-propanediol or 1,3-propanediol) or a mixture thereof is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid.
    Type: Application
    Filed: December 6, 2013
    Publication date: September 24, 2015
    Inventors: Manhua Lin, Wai-si Eng
  • Publication number: 20150141239
    Abstract: A catalyst, its method of preparation and its use for producing aliphatic ketones by subjecting alkanes C3 to C9 to a gas phase catalytic oxidation in the presence of air or oxygen, and, optionally, steam and/or one or more diluting gases. The catalyst comprises a catalytically active mixed metal oxide phase and a suitable support material onto and/or into which the active catalytic phase is dispersed.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 21, 2015
    Inventors: Manhua Lin, Xiang Wang, Younghoon Yeom
  • Patent number: 8981157
    Abstract: A catalyst, its method of preparation and its use for producing aliphatic ketones by subjecting alkanes C3 to C9 to a gas phase catalytic oxidation in the presence of air or oxygen, and, optionally, steam and/or one or more diluting gases. The catalyst comprises a catalytically active mixed metal oxide phase and a suitable support material onto and/or into which the active catalytic phase id dispersed.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 17, 2015
    Assignee: Ever Nu Technology, LLC
    Inventors: Manhua Lin, Xiang Wang, Younghoon Yeom
  • Publication number: 20140135532
    Abstract: A catalyst, its method of preparation and its use for producing aliphatic ketones by subjecting alkanes C3 to C9 to a gas phase catalytic oxidation in the presence of air or oxygen, and, optionally, steam and/or one or more diluting gases. The catalyst comprises a catalytically active mixed metal oxide phase and a suitable support material onto and/or into which the active catalytic phase id dispersed.
    Type: Application
    Filed: May 9, 2012
    Publication date: May 15, 2014
    Applicant: EverNu Technology LLc
    Inventors: Manhua Lin, Xiang Wang, Younghoon Yeom
  • Patent number: 7888281
    Abstract: A catalyst, its method of preparation and its use for producing at least one of methacrolein and methacrylic acid, for example, by subjecting isobutane or isobutylene or a mixture thereof to a vapor phase catalytic oxidation in the presence of air or oxygen. In the case where isobutane alone is subjected to a vapor phase catalytic oxidation in the presence of air or oxygen, the product is at least one of isobutylene, methacrolein and methacrylic acid.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: February 15, 2011
    Assignee: Evernu Technology, LLC
    Inventors: Manhua Lin, Krishnan S. Pillai
  • Publication number: 20080177106
    Abstract: A catalyst, its method of preparation and its use for producing at least one of methacrolein and methacrylic acid, for example, by subjecting isobutane or isobutylene or a mixture thereof to a vapor phase catalytic oxidation in the presence of air or oxygen. In the case where isobutane alone is subjected to a vapor phase catalytic oxidation in the presence of air or oxygen, the product is at least one of isobutylene, methacrolein and methacrylic acid.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 24, 2008
    Inventors: Manhua Lin, Krishnan S. Pillai
  • Patent number: 7049466
    Abstract: A method for producing an unsaturated carboxylic acid comprises: (a) contacting, in a reaction zone, an alkane with a catalyst containing a mixed metal oxide, under conditions which produce a product gas comprising the unsaturated carboxylic acid, unreacted alkane and a product alkene; (b) recovering unreacted alkane and product alkene from the product gas; and (c) recycling the recovered unreacted alkane and product alkene to the reaction zone; wherein the mixed metal oxide consists of a material having the formula AaMmNnXxOo wherein A is at least one element selected from the group consisting of molybdenum and tungsten, wherein M is at least one element selected from the group consisting of vanadium, cerium and chromium, wherein N is at least one element selected from the group consisting of tellurium, bismuth and selenium, wherein X is at least one element selected from the group consisting of niobium, tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel,
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 23, 2006
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Donald Lee Zolotorofe
  • Patent number: 6989460
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitriles are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 24, 2006
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, III, Michael William Linsen
  • Patent number: 6812366
    Abstract: A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: November 2, 2004
    Assignee: Rohm and Haas Company
    Inventor: Manhua Lin
  • Publication number: 20040210086
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitrites are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Application
    Filed: November 25, 2003
    Publication date: October 21, 2004
    Inventors: Leonard Edward Bogan, Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, Michael William Linsen
  • Publication number: 20040116739
    Abstract: A process useful for the catalytic gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids uses catalysts of particular compositions formed in a particular manner.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 17, 2004
    Inventor: Manhua Lin
  • Patent number: 6710207
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitrites are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, III., Michael William Linsen
  • Publication number: 20040054223
    Abstract: A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 18, 2004
    Inventor: Manhua Lin
  • Patent number: 6693059
    Abstract: A process useful for the catalytic gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids uses catalysts of particular compositions formed in a particular manner.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: February 17, 2004
    Assignee: Rohm and Haas Company
    Inventor: Manhua Lin
  • Patent number: 6653253
    Abstract: A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: November 25, 2003
    Assignee: Rohm and Haas Company
    Inventor: Manhua Lin