Patents by Inventor Rickey Epps

Rickey Epps 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: 6602443
    Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol dimethyl ether produces significant benefits in carbon dioxide slip in, e.g., ammonia systhesis plants. A solvent based predominantly on tetraethylene glycol dimethyl ether can be used neat or can be added to the existing recirculating solvent stream to increase the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: August 5, 2003
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: David Burns, Rickey Epps
  • Patent number: 6592779
    Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol dimethyl ether produces significant benefits in carbon dioxide slip in, e.g., ammonia systhesis plants. A solvent based predominantly on tetraethylene glycol dimethyl ether can be used neat or can be added to the existing recirculating solvent stream to increase the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: July 15, 2003
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: David Burns, Rickey Epps
  • Publication number: 20020033476
    Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol dimethyl ether produces significant benefits in carbon dioxide slip in, e.g., ammonia systhesis plants. A solvent based predominantly on tetraethylene glycol dimethyl ether can be used neat or can be added to the existing recirculating solvent stream to increase the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 21, 2002
    Inventors: David Burns, Rickey Epps
  • Patent number: 5705090
    Abstract: Absorption solvents for removing mercaptans from gas streams are disclosed. The absorption solvents comprise an alkylether of a polyalkylene glycol, e.g., methoxytriglycol, and a secondary monoalkanolamine, e.g., N-methylethanolamine, as well as optionally other amines, e.g., methyldiethanolamine and diethanolamine. The absorption solvents do not require the presence of iodine for removal of mercaptans. Absorption processes utilizing the solvents are also disclosed.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: January 6, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Paul Garland, Craig Norman Schubert, Richard Alan Gregory, Eduardo Garcia-Rameau, Rickey Epps, David Burns, Robert Jerry Hlozek
  • Patent number: 5589149
    Abstract: Absorption solvents for removing mercaptans from gas streams are disclosed. The absorption solvents comprise an alkylether of a polyalkylene glycol, e.g., methoxytriglycol, and a secondary monoalkanolamine, e.g., N-methylethanolamine, as well as optionally other amines, e.g., methyldiethanolamine and diethanolamine. The absorption solvents do not require the presence of iodine for removal of mercaptans. Absorption processes utilizing the solvents are also disclosed.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: December 31, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Paul Garland, Craig N. Schubert, Richard A. Gregory, Eduardo Garcia-Rameau, Rickey Epps, David Burns, Robert J. Hlozek