Patents by Inventor Timothy C Merkel

Timothy C Merkel 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: 20160236141
    Abstract: A process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of an amorphous perfluorinated dioxolane and a fluorovinyl monomer. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers such as Teflon® AF, Hlyflon® AD, and Cytop®.
    Type: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Applicants: Membrane Technology and Research, Inc., New York University
    Inventors: Timothy C. Merkel, Hao Zhang, Zhenjie He, Yoshiyuki Okamoto
  • Patent number: 9403120
    Abstract: Disclosed herein is a process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of perfluorodioxolane monomers. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: August 2, 2016
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Zhenjie He, Timothy C. Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
  • Publication number: 20160195014
    Abstract: Disclosed herein is a power generation process in which a portion of the carbon dioxide generated by gaseous fuel combustion is recycled back to the power generation process, either pre-combustion, post-combustion, or both. The power generation process of the invention may be a combined cycle process or a traditional power generation process. The process utilizes sweep-based membrane separation.
    Type: Application
    Filed: March 10, 2016
    Publication date: July 7, 2016
    Applicant: Membrane Technology and Research, Inc.
    Inventors: Richard W. Baker, Timothy C. Merkel, Johannes G. Wijmans
  • Publication number: 20160045859
    Abstract: A process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of partially fluorinated or perfluorinated dioxolane monomers and a second monomer, such as dioxane or a partially fluorinated dioxolane. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 18, 2016
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Hao Zhang, Zhenjie He, Timothy C. Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
  • Patent number: 9140186
    Abstract: A process involving membrane-based gas separation and power generation, specifically for controlling carbon dioxide emissions from gas-fired power plants. The process includes a compression step, a combustion step, and an expansion/electricity generation step, as in traditional power plants. The process also includes a sweep-driven membrane separation step and a carbon dioxide removal or capture step. The carbon dioxide removal step is carried out on a portion of gas from the compression step.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 22, 2015
    Assignee: Membrane Technology and Research, Inc
    Inventors: Xiaotong Wei, Richard W Baker, Timothy C Merkel, Brice C. Freeman
  • Publication number: 20150231555
    Abstract: Disclosed herein is a process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of perfluorodioxolane monomers. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.
    Type: Application
    Filed: July 14, 2014
    Publication date: August 20, 2015
    Applicant: Membrane Technology and Research, Inc.
    Inventors: Zhenjie He, Timothy C. Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
  • Patent number: 9005335
    Abstract: A gas separation process for treating an exhaust gas stream from a combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, and flowing a second portion of the exhaust stream and at least a portion of an off-gas stream from the carbon dioxide capture step across the feed side of a membrane, while flowing a sweep gas stream, usually air, across the permeate side, and then passing the resulting permeate sweep stream back to the combustor.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 14, 2015
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Richard W. Baker, Xiaotong Wei, Timothy C Merkel
  • Publication number: 20140366724
    Abstract: The invention is a process involving membrane-based gas separation for separating and recovering carbon dioxide emissions from combustion processes in partially concentrated form, and then transporting the carbon dioxide and using or storing it in a confined manner without concentrating it to high purity. The process of the invention involves building up the concentration of carbon dioxide in a gas flow loop between the combustion step and a membrane separation step. A portion of the carbon dioxide-enriched gas can then be withdrawn from this loop and transported, without the need to liquefy the gas or otherwise create a high-purity stream, to a destination where it is used or confined, preferably in an environmentally benign manner.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Johannes G. Wijmans, Richard W. Baker, Timothy C. Merkel
  • Patent number: 8852319
    Abstract: The invention is a process involving membrane-based gas separation for separating and recovering carbon dioxide emissions from combustion processes in partially concentrated form, and then transporting the carbon dioxide and using or storing it in a confined manner without concentrating it to high purity. The process of the invention involves building up the concentration of carbon dioxide in a gas flow loop between the combustion step and a membrane separation step. A portion of the carbon dioxide-enriched gas can then be withdrawn from this loop and transported, without the need to liquefy the gas or otherwise create a high-purity stream, to a destination where it is used or confined, preferably in an environmentally benign manner.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 7, 2014
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Johannes G. Wijmans, Richard W. Baker, Timothy C. Merkel
  • Patent number: 8828121
    Abstract: Disclosed herein is a process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of perfluorodioxolane monomers. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers, such as Teflon® AF, Hyflon® AD, and Cytop®.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 9, 2014
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Zhenjie He, Timothy C. Merkel, Yoshiyuki Okamoto, Yasuhiro Koike
  • Patent number: 8568510
    Abstract: A gas separation process for treating off-gas streams from reaction processes, and reaction processes including such gas separation. The invention involves flowing the off-gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, and passing the permeate/sweep gas mixture to the reaction. The process recovers unreacted feedstock that would otherwise be lost in the waste gases in an energy-efficient manner.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 29, 2013
    Assignee: Membrane Technology and Research, Inc
    Inventors: Johannes G Wijmans, Richard W Baker, Timothy C Merkel
  • Publication number: 20130263734
    Abstract: Disclosed herein is a process for producing oxygen-enriched air that involves a membrane separation step that uses glassy polymer membranes that have a selectivity to oxygen over nitrogen of at least 2.4.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 10, 2013
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC
    Inventors: Nicholas P. Wynn, Haiqing Lin, Meijuan Zhou, Jennifer H. Ly, Timothy C. Merkel
  • Publication number: 20130200625
    Abstract: A process involving membrane-based gas separation and power generation, specifically for controlling carbon dioxide emissions from gas-fired power plants. The process includes a compression step, a combustion step, and an expansion/electricity generation step, as in traditional power plants. The process also includes a sweep-driven membrane separation step and a carbon dioxide removal or capture step. The carbon dioxide removal step is carried out on a portion of gas from the compression step.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Applicant: Membrane Technology and Research, Inc.
    Inventors: Xiaotong Wei, Richard W Baker, Timothy C Merkel, Brice C. Freeman
  • Publication number: 20120272657
    Abstract: Disclosed herein is a power generation process in which a portion of the carbon dioxide generated by gaseous fuel combustion is recycled back to the power generation process, either pre-combustion, post-combustion, or both. The power generation process of the invention may be a combined cycle process or a traditional power generation process. The process utilizes sweep-based membrane separation.
    Type: Application
    Filed: July 13, 2012
    Publication date: November 1, 2012
    Applicant: Membrane Technology and Research, Inc
    Inventors: Richard W. Baker, Timothy C. Merkel, Johannes G. Wijmans
  • Patent number: 8246718
    Abstract: A gas separation process for treating flue gases from combustion processes, and combustion processes including such gas separation. The invention involves routing a first portion of the flue gas stream to be treated to an absorption-based carbon dioxide capture step, while simultaneously flowing a second portion of the flue gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas to the combustor.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: August 21, 2012
    Assignee: Membrane Technology and Research, Inc
    Inventors: Johannes G. Wijmans, Richard W. Baker, Timothy C. Merkel
  • Patent number: 8220247
    Abstract: Disclosed herein is a power generation process in which a portion of the carbon dioxide generated by gaseous fuel combustion is recycled back to the power generation process, either pre-combustion, post-combustion, or both. The power generation process of the invention may be a combined cycle process or a traditional power generation process. The process utilizes sweep-based membrane separation.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 17, 2012
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Johannes G. Wijmans, Timothy C. Merkel, Richard W. Baker, Xiaotong Wei
  • Patent number: 8220248
    Abstract: Disclosed herein is a power generation process in which a portion of the carbon dioxide generated by gaseous fuel combustion is recycled back to the power generation process, either pre-combustion, post-combustion, or both. The power generation process of the invention may be a combined cycle process or a traditional power generation process. The process utilizes sweep-based membrane separation.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 17, 2012
    Assignee: Membrane Technology and Research, Inc
    Inventors: Johannes G. Wijmans, Timothy C. Merkel, Richard W. Baker, Xiaotong Wei
  • Publication number: 20120137878
    Abstract: A gas separation process for treating off-gas streams from reaction processes, and reaction processes including such gas separation. The invention involves flowing the off-gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, and passing the permeate/sweep gas mixture to the reaction. The process recovers unreacted feedstock that would otherwise be lost in the waste gases in an energy-efficient manner.
    Type: Application
    Filed: January 5, 2012
    Publication date: June 7, 2012
    Applicant: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Johannes G. Wijmans, Richard W. Baker, Timothy C. Merkel
  • Patent number: 8177885
    Abstract: A gas separation process for treating exhaust gases from the combustion of gaseous fuels, and gaseous fuel combustion processes including such gas separation. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, while simultaneously flowing a second portion of the exhaust gas stream across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas back to the combustor.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: May 15, 2012
    Assignee: Membrane Technology and Research, Inc
    Inventors: Johannes G. Wijmans, Timothy C. Merkel, Richard W. Baker
  • Patent number: 8128733
    Abstract: A membrane-based gas separation process for treating gas streams that contain methane in low concentrations. The invention involves flowing the stream to be treated across the feed side of a membrane and flowing a sweep gas stream, usually air, across the permeate side. Carbon dioxide permeates the membrane preferentially and is picked up in the sweep air stream on the permeate side; oxygen permeates in the other direction and is picked up in the methane-containing stream. The resulting residue stream is enriched in methane as well as oxygen and has an EMC value enabling it to be either flared or combusted by mixing with ordinary air.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: March 6, 2012
    Assignee: Membrane Technology & Research, Inc
    Inventors: Johannes G. Wijmans, Timothy C. Merkel, Haiqing Lin, Scott Thompson, Ramin Daniels