Patents by Inventor Tatiana H. Sonnenberg

Tatiana H. Sonnenberg 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).

  • Esterification process using extractive separation to produce feed for hydrogenolysis
    Patent number: 9024089
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product may be recovered using an extractive separation. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: May 5, 2015
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Single phase ester feed for hydrogenolysis
    Patent number: 8975451
    Abstract: The process involves esterifying ethanol and acetic acid to produce an esterification product that is in a single phase that is directly reduced, by hydrogenolysis, to produce ethanol. The single phase is not capable of separating. Feeding a single phase feed stream reduces the separation of the esterification product. Hydrogen may be fed to the esterification reactor that operates at a high pressure that is substantially similar to or greater than the hydrogenolysis reactor.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2015
    Assignee: Celanese International Corporation
    Inventors: Tatiana H. Sonnenberg, Wei Qi, R. Jay Warner
  • Thermochemically produced ethanol compositions
    Patent number: 8926718
    Abstract: In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 20 wppm to 94 wppm isopropanol. The composition may be free of methanol and acetaldehyde.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 6, 2015
    Assignee: Celanese International Corporation
    Inventors: Tatiana H. Sonnenberg, R. Jay Warner, Heiko Weiner
  • Production of diacetoxyethylene by direct acetoxylation
    Patent number: 8884052
    Abstract: In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 11, 2014
    Assignee: Celanese International Corporation
    Inventors: Joseph G. Duff, Stephen Kerlegon, Kien V. Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy L. Tway, Hang Wang
  • Esterifying acetic acid to produce ester feed for hydrogenolysis
    Patent number: 8859827
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying an excess molar ratio of acetic acid with an alcohol, such as ethanol, to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 14, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Vapor esterification method to produce ester feed for hydrogenolysis
    Patent number: 8853468
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the vapor phase, acetic acid and an alcohol such as ethanol to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • THERMOCHEMICALLY PRODUCED ETHANOL COMPOSITIONS
    Publication number: 20140275637
    Abstract: In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 20 wppm to 94 wppm isopropanol. The composition may be free of methanol and acetaldehyde.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Tatiana H. Sonnenberg, R. Jay Warner, Heiko Weiner
  • SINGLE PHASE ESTER FEED FOR HYDROGENOLYSIS
    Publication number: 20140275640
    Abstract: The process involves esterifying ethanol and acetic acid to produce an esterification product that is in a single phase that is directly reduced, by hydrogenolysis, to produce ethanol. The single phase is not capable of separating. Feeding a single phase feed stream reduces the separation of the esterification product. Hydrogen may be fed to the esterification reactor that operates at a high pressure that is substantially similar to or greater than the hydrogenolysis reactor.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Tatiana H. Sonnenberg, Wei Qi, R. Jay Warner
  • Liquid esterification method to produce ester feed for hydrogenolysis
    Patent number: 8829251
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the liquid phase, acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 9, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • COPOLYMERS OF 1,2-DIACETOXYETHYLENE AND VINYL ACETATE, PROCESS OF MAKING THE COPOLYMERS AND PROCESS OF MAKING A COPOLYMERIZED POLYVINYL ALCOHOL
    Publication number: 20140024766
    Abstract: In one embodiment, the invention is to a vinyl acetate/diacetoxyethylene copolymer, processes of making the copolymer and processes of hydrolyzing said copolymer to form a copolymerized polyvinyl alcohol.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 23, 2014
    Applicant: Celanese International Corporation
    Inventors: Joseph G. Duff, Stephen Kerlegon, Kien-Van Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy Tway, Hang Wang
  • PRODUCTION OF DIACETOXYETHYLENE BY DIRECT ACETOXYLATION
    Publication number: 20130158289
    Abstract: In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Joseph G. Duff, Stephen Kerlegon, Kien V. Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy L. Tway, Hang Wang
  • Process of Recovery of Ethanol From Hydrogenolysis Process
    Publication number: 20130131398
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising ethyl acetate, ethanol, and at least one alcohol having at least 4 carbon atoms. The ethanol is recovered with a reduced amount of the alcohol having at least 4 carbon atoms.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Esterification Process Using Extractive Separation To Produce Feed For Hydrogenolysis
    Publication number: 20130131393
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product may be recovered using an extractive separation. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Vapor Esterification Method To Produce Ester Feed For Hydrogenolysis
    Publication number: 20130131198
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the vapor phase, acetic acid and an alcohol such as ethanol to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Esterifying Acetic Acid To Produce Ester Feed For Hydrogenolysis
    Publication number: 20130131396
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying an excess molar ratio of acetic acid with an alcohol, such as ethanol, to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
  • Liquid Esterification Method To Produce Ester Feed For Hydrogenolysis
    Publication number: 20130131397
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the liquid phase, acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg