Patents by Inventor Ruth A. Davis

Ruth A. Davis 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).

  • Patent number: 8664459
    Abstract: A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes H2 and one or more sulfur compounds. The sulfur compounds may include H2S and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, H2S may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, H2S and H2 exits the reactor and may be brought into contact with a chemical adsorbent which removes the H2S. The gas stream may then be passed to a steam methane reformer.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 4, 2014
    Assignees: Air Products and Chemicals, Inc., Johnson Matthey PLC
    Inventors: Ruth A. Davis, Norman Macleod, Gordon Edward Wilson
  • Publication number: 20090247800
    Abstract: A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes H2 and one or more sulfur compounds. The sulfur compounds may include H2S and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, H2S may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, H2S and H2 exits the reactor and may be brought into contact with a chemical adsorbent which removes the H2S. The gas stream may then be passed to a steam methane reformer.
    Type: Application
    Filed: November 4, 2008
    Publication date: October 1, 2009
    Applicants: Air Products and Chemicals, Inc., Johnson Matthey PLC
    Inventors: Ruth A. Davis, Norman Macleod, Gordon Edward Wilson
  • Publication number: 20070225992
    Abstract: A method of providing business information data to a user, including allowing the user unlimited access to interactive, customizable modular applications through a single platform. The applications interface with a database to provide real-time business information data to the user, the business information data relating to an entity and being based on a unique corporate identification number associated with the entity.
    Type: Application
    Filed: October 5, 2006
    Publication date: September 27, 2007
    Inventors: David Palmieri, David Ingerman, Amy Hayenhjelm, Peter Kinkel, Robert Tam, Keith Gastauer, Ruth Davis, Angelo Sirigos, Curt Harris, Joseph Davidchik, Michele Iacavone, Liz Templin, Jesus Urriola, Omcar Paradkar, Busse Benjamin, Jeffrey Kaufman, Prashant Tyagi, Angel Gutierrez
  • Publication number: 20060020519
    Abstract: The invention includes methods, systems, and computer-readable media that provide an automatically updated business information report to a customer by performing steps including updating daily a database of business information with newly available business information that is more current than that present in the database, generating a business information report in dependence on data retrieved from the database, storing the generated business information report for customer access, updating the business information report with data retrieved from the database that is more current than that presently contained in the business information report; the updating occurring upon each access of the business information report by the customer; and storing the automatically-updated business information report for further customer access.
    Type: Application
    Filed: January 26, 2005
    Publication date: January 26, 2006
    Inventors: Scott Schroeder, John Stewart, Ruth Davis, Timothy Letteer, Suneet Bhatt, Kathy Reynard
  • Patent number: 5011670
    Abstract: Carbon black is produced from a pyrolyzed hydrocarbon wherein pyrolysis is effected by combusting a synthesis gas containing hydrogen and carbon monoxide. The synthesis gas is produced from reforming a hydrocarbon fuel, wherein the reformation is heated by combusting carbon black effluent tail gas or indirect heat exchange of the hot tail gas.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: April 30, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ruth A. Davis, David M. Nicholas, Dale D. Smith, Shoou-I Wang, Richard A. Wright
  • Patent number: 4857082
    Abstract: A permeator system for separating at least one gaseous component from a feed gas mixture containing at least one other component using a semi-permeable membrane is disclosed which maintains high permeate product purity and desired component recovery during periods of turn-down in capacity. In accordance with the present invention, the permeator system contains a series of flow and pressure sensors and valves which regulate differential pressure across the membrane based upon permeate product demand or feed availability.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: August 15, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Stephen P. DiMartino, Sr., Jeffrey A. Hopkins, Ruth A. Davis
  • Patent number: 4732598
    Abstract: A process is disclosed for the rejection of nitrogen from natural gas with the optional recovery of natural gas liquids. The process of the present invention employs a dephlegmator which provides a high purity nitrogen reflux for a low pressure distillation column and provides subcooling of the feed and reflux to the low pressure column and reboiling of the low pressure column. The dephlegmator of the present invention combines the high pressure column and three heat exchangers of a conventional double column process into a single, compact unit, with corresponding reductions in interconnecting piping and capital investment.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: March 22, 1988
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Howard C. Rowles, Ruth A. Davis
  • Patent number: 4662919
    Abstract: The present invention is directed to a gas separation system for separating or rejecting nitrogen from a natural gas feed containing nitrogen, over a wide range of nitrogen concentrations, under elevated pressure using a single distillation column with two intermediate side condensers and a closed loop heat pump which reboils and partially refluxes the column. The lower of the intermediate condensers is cooled by heat exchange with the heat pump fluid and the overhead nitrogen fraction of the column. The upper of the intermediate condensers is cooled by heat exchange with the overhead nitrogen fraction of the column. The process can handle feeds with increasing nitrogen composition and more than 100 vppm carbon dioxide. The process provides a high methane recovery over the entire feed range, and provides a nitrogen product having an elevated pressure suitable for recycling and reinjection into an oil or gas well to maintain well head pressure.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: May 5, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Ruth A. Davis
  • Patent number: 4504295
    Abstract: A process is set forth for the recovery of methane, nitrogen and natural gas liquids (C.sub.2+) from a natural gas feed stream wherein the recovery can be made at high pressure by the integration of a nitrogen rejection stage including a heat pump driven distillation column and a natural gas liquids stage. Nitrogen can be rejected over a wide range of nitrogen concentration (approximately 1 to about 80%) of the feed stream.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: March 12, 1985
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ruth A. Davis, Donn M. Herron, James W. Pervier, Harvey L. Vines