Patents by Inventor Peter Pfeifer

Peter Pfeifer 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: 20230399570
    Abstract: The present invention relates to methods for the conversion of CO2 to chemical energy carriers and products, in particular via a methanation of the gas phase fraction from a Fischer-Tropsch synthesis.
    Type: Application
    Filed: October 11, 2021
    Publication date: December 14, 2023
    Inventors: Tim BOELTKEN, Roland DITTMEYER, Peter PFEIFER
  • Publication number: 20230303470
    Abstract: An apparatus for producing methanol from carbon dioxide. The apparatus includes a first circulation process for a circulating water and methanol which includes an absorption stage for carbon dioxide, a desorption stage with a hydrogen feed, a first heat exchanger, an outlet, a circulation pump, and an expansion throttle. The second circulation process for methanol, water, carbon dioxide and hydrogen includes the desorption stage, a first liquid-gas phase separation stage with a return conduit for liquid phases to the desorption stage, and a gas outlet from and an inlet into the desorption stage. The third circulation process for carbon dioxide and hydrogen includes a methanol synthesis reactor, a gas outlet of the first liquid-gas phase separation stage which opens out into the third circular conduit and an inlet into which the third circular conduit opens, a second heat exchanger, a gas outlet in the third circular conduit, and a fan.
    Type: Application
    Filed: June 25, 2021
    Publication date: September 28, 2023
    Applicant: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: FRANCISCO VIDAL-VAZQUEZ, ROLAND DITTMEYER, PETER PFEIFER
  • Patent number: 11229894
    Abstract: The invention relates to a reactor, preferably microreactor, for methanation, and to the operation of this reactor, i.e. to the process regime for preparation of methane.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: January 25, 2022
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Peter Pfeifer, Michael Belimov
  • Patent number: 10888833
    Abstract: The present invention relates to a reactor for producing synthesis gas which has a fluid-tight connection to a heat exchanger, and to a process for producing synthesis gas, preferably under high pressure, by using the reactor. The reactor comprises a mixer, a mixing space, a reactor space, separate inlets for at least two fluid reactants and an outlet for at least one fluid product, and a reactor shell surrounding these, and wherein the mixer comprises a mixer base, at least one mixer disk with channels for a first fluid, at least one mixer disk with channels for a second fluid, a mixer closure, and a mixer lid.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 12, 2021
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Peter Pfeifer, Paolo Piermartini, Tim Boeltken, Robin Duerrschnabel
  • Publication number: 20200324265
    Abstract: The invention relates to a reactor, preferably microreactor, for methanation, and to the operation of this reactor, i.e. to the process regime for preparation of methane.
    Type: Application
    Filed: June 7, 2017
    Publication date: October 15, 2020
    Inventors: Peter PFEIFER, Michael BELIMOV
  • Publication number: 20190111407
    Abstract: The present invention relates to a reactor for production of synthesis gas that optionally has a fluid-tight connection to a heat exchanger, and to a process for producing synthesis gas, preferably under high pressure.
    Type: Application
    Filed: March 21, 2017
    Publication date: April 18, 2019
    Applicant: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Peter PFEIFER, Paolo PIERMARTINI, Tim BOELTKEN, Robin DUERRSCHNABEL
  • Patent number: 10150093
    Abstract: The invention relates to a micro-reactor for carrying out at least one catalytic reaction between two or more reactants in each case, comprising a stacking sequence of reaction surfaces (1) for carrying out at least one exothermic reaction, and a cooling region (6) divided at least into individual fields (6) with feed and discharge devices for the coolant.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: December 11, 2018
    Assignee: INERATEC GMBH
    Inventors: Peter Pfeifer, Paolo Piermartini, Achim Wenka
  • Publication number: 20180207607
    Abstract: The invention relates to a micro-reactor for carrying out at least one catalytic reaction between two or more reactants in each case, comprising a stacking sequence of reaction surfaces (1) for carrying out at least one exothermic reaction, and a cooling region (6) divided at least into individual fields (6) with feed and discharge devices for the coolant.
    Type: Application
    Filed: July 15, 2016
    Publication date: July 26, 2018
    Inventors: Peter PFEIFER, Paolo PIERMARTINI, Achim WENKA
  • Patent number: 9517445
    Abstract: Activated carbon materials and methods of producing and using activated carbon materials are provided. In particular, biomass-derived activated carbon materials and processes of producing the activated carbon materials with prespecified surface areas and pore size distributions are provided. Activated carbon materials with preselected high specific surface areas, porosities, sub-nm (<1 nm) pore volumes, and supra-nm (1-5 nm) pore volumes may be achieved by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 13, 2016
    Inventors: Jimmy Romanos, Jacob Burress, Peter Pfeifer, Tyler Rash, Parag Shah, Galen Suppes
  • Patent number: 8926932
    Abstract: The present invention provides a high surface area porous carbon material and a process for making this material. In particular, the carbon material is derived from biomass and has large mesopore and micropore surfaces that promote improved adsorption of materials and gas storage capabilities.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 6, 2015
    Assignee: The Curators of the University of Missouri
    Inventors: Peter Pfeifer, Galen J. Suppes, Parag Shah, Jacob W. Burress
  • Patent number: 8691177
    Abstract: The present invention provides a high surface area porous carbon material and a process for making this material. In particular, the carbon material is derived from biomass and has large mesopore and micropore surfaces that promote improved adsorption of materials and gas storage capabilities.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 8, 2014
    Assignee: The Curators of the University of Missouri
    Inventors: Peter Pfeifer, Galen J. Suppes, Parag Shah, Jacob W. Burress
  • Publication number: 20120094828
    Abstract: The present invention provides a high surface area porous carbon material and a process for making this material. In particular, the carbon material is derived from biomass and has large mesopore and micropore surfaces that promote improved adsorption of materials and gas storage capabilities.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 19, 2012
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Peter Pfeifer, Galen J. Suppes, Parag Shah, Jacob W. Burress
  • Publication number: 20090229265
    Abstract: The invention relates to a method for converting thermal energy into mechanical work. Said method comprises the following steps which are performed as a cycle: A liquid work medium is fed from a supply reservoir (1) to a work container (3); the work medium in the work container (3) is heated by a first heat exchanger (5); a sub-amount of the work medium flows from the work container (3) to a pneumatic-hydraulic-converter (8), a hydraulic medium from the pneumatic-hydraulic-converter (8) is compressed in a work machine (9) in order to convert the hydraulic work of the hydraulic medium into mechanical work; the work medium from the pneumatic-hydraulic-converter (8) is fed back into the supply reservoir (1) and the hydraulic medium is returned into the pneumatic-hydraulic-converter (8). The invention also relates to a device for carrying out said method.
    Type: Application
    Filed: May 24, 2007
    Publication date: September 17, 2009
    Inventors: Michael Mayer, Bernd Peter Pfeifer, Franz Peter Jegel, Steve Hargreaves
  • Publication number: 20080207442
    Abstract: The present invention provides a high surface area porous carbon material and a process for making this material. In particular, the carbon material is derived from biomass and has large mesopore and micropore surfaces that promote improved adsorption of materials and gas storage capabilities.
    Type: Application
    Filed: November 8, 2007
    Publication date: August 28, 2008
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Peter Pfeifer, Galen J. Suppes, Parag Shah, Jacob W. Burress
  • Patent number: 6570657
    Abstract: Surface plasmon resonance spectroscopy device includes an optical prism with a sample cell associated therewith and at least two sample detection areas that are provided with a thin metal coating selected for implementation of the SPR method and which contains, at least partially, surface-immobilized areas. Light is conducted via an optic fiber, collimated by a collimator with an aperture to a base surface of the prism, applied to an entrance of the optical prism. A multi adaptable diaphragm is provided between the collimator and the entrance surface. The diaphragm defines a path to the prism in a chronologically successive manner. Switching states are allocated to spectra corresponding to the switching states, whereby the spectra are obtained by detecting the light that leaves the prism through another collimator connected to another optic fiber applied to a polychromator wherein spectrally decomposed light is detected and evaluated by an evaluation and control unit.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: May 27, 2003
    Assignees: Institut Fuer Physikalische Hochtechnolgolie e.V., ANALYTIK Jena GmbH Analysenmessgeraete und Laboreinrichtungen
    Inventors: Lutz Hoppe, Peter Pfeifer, Günter Schwotzer
  • Patent number: 5890965
    Abstract: The dry coupling includes a typical shaft to shaft coupling, conformed to body the invention by inclusion of two hub parts (4) with hub flanges (5,5') bonded thereunto and also an intermediate tube (6) interconnecting the flanges with respective flanges (7), each forming a membrane. For transmitting a torque the flanges are coupled to adjacent hub flanges (5). It is important that all parts (4,5;6,7) possibly except connecting elements (8) consist of a high modulus fiber reinforced material (FVW). Preferably the hubs consist of a carbon fiber reinforced material (CFK) and the intermediate tube of a more flexible GFK.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: April 6, 1999
    Assignees: Maag Getriebe AB, Dr. Ing. Geislinger &C., Schwingungstechnik Gesellschaft mbH
    Inventors: Thomas Deeg, Peter Pfeifer, Gunther Lutz
  • Patent number: 5425675
    Abstract: A tubular shaft comprises a torque-transmitting tubular structure compris at least one torque-transmitting shell, which has elastic properties oriented along at least one helical line. To permit the tubular shaft to be used as an effective vibration damper, the shell surrounds a pumping chamber, which is adapted to contain a damping liquid and communicates through at least one constricted passage with a reservoir for damping liquid.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: June 20, 1995
    Assignee: Dr. Ing. Geislinger & Co. Schwingungstechnik Gesellschaft m.b.H.
    Inventor: Peter Pfeifer
  • Patent number: 5314382
    Abstract: A coupling member for incorporation in a torque-transmitting drive train comprises a tube and at least one flange at at least one end of the tube. The tube and flange consist of fiber-reinforced plastic. In order to permit a simpler manufacture and an improved selection of strength and load-carrying properties in adaptation to different conditions of use, the tube and the flange are separately prefabricated and are adhesively joined to and by a sleeve.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: May 24, 1994
    Assignee: Geislinger & Co. Schwingungstechnik Gesellschaft m.b.H.
    Inventor: Peter Pfeifer
  • Patent number: 4464822
    Abstract: In torsional vibration dampers and torsionally elastic coupling which comse torque-transmitting spring elements, which are clamped between spacers by an external clamping ring, which is elastically expanded for the installation of the spacers and spring elements. For a quick and efficient assembling of the dampers or couplings, the spacers alone are initially inserted into the clamping ring and are then subjected to radially outwardly directed pressure until the clamping ring has been expanded beyond the extent required to clamp the spring elements, which are subsequently inserted between the spacers, whereafter the spacers are relieved from pressure. This method can be carried out with the aid of a cylindrical assembling head, which is provided at its periphery with at least one radially movable pressure-applying member, which cooperates with at least one hydraulic cushion, which is adapted to be pressurized.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: August 14, 1984
    Assignee: Dr. Ing. Geislinger & Co., Schwingungstechnik Gesellschaft mbH.
    Inventor: Peter Pfeifer
  • Patent number: 4262499
    Abstract: A torsionally elastic vibration-damping and/or coupling mechanism has tor-transmitting, radial leaf springs, which at one end are gripped in an outer member and at the other end engage grooves of an inner member. To impart such a damping or coupling device a particularly long life by avoiding unfavorable friction conditions, rolling elements are disposed in the grooves between the leaf springs and the sides of the grooves.
    Type: Grant
    Filed: March 15, 1979
    Date of Patent: April 21, 1981
    Assignee: Dr. Ing. Geislinger & Co. Schwingungstechnik Gesellschaft m.b.H.
    Inventor: Peter Pfeifer