Patents Assigned to ECS Holdings, Inc.
  • Patent number: 8685352
    Abstract: The present invention pertains to catalyst systems for nitrogen oxide, carbon monoxide, hydrocarbon, and sulfur reactions that are free or substantially free of platinum group metals. The catalyst system of the present invention comprise a substrate and a washcoat, wherein the washcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst system may optionally have an overcoat, wherein the overcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst comprises one or more selected from the group consisting of a ZPGM transition metal catalyst, a mixed metal oxide catalyst, a zeolite catalysts, or mixtures thereof.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: April 1, 2014
    Assignees: ECS Holdings, Inc., Catalytic Solutions, Inc.
    Inventors: Stephen J. Golden, Randal Hatfield, Jason Pless, Johnny Ngo, Mann Sakbodin
  • Patent number: 8580216
    Abstract: A catalyst system and a method for reducing nitrogen oxides in an exhaust gas by reduction with a hydrocarbon or oxygen-containing organic compound reducing agent are provided. The catalyst system contains a silver catalyst and a modifier catalyst, where the modifier catalyst contains a modifier oxide, where the modifier oxide is selected from the group consisting of iron oxide, cerium oxide, copper oxide, manganese oxide, chromium oxide, a lanthanide oxide, an actinide oxide, molybdenum oxide, tin oxide, indium oxide, rhenium oxide, tantalum oxide, osmium oxide, barium oxide, calcium oxide, strontium oxide, potassium oxide, vanadium oxide, nickel oxide, tungsten oxide, and mixtures thereof. The modifier oxide is supported on an inorganic oxide support or supports, where at least one of the inorganic oxide supports is an acidic support. The catalyst system of the silver catalyst and the modifier catalyst provides higher NOx conversion than either the silver catalyst or the modifier catalyst alone.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: November 12, 2013
    Assignees: ECS Holdings, Inc., Catalytic Solutions, Inc.
    Inventors: Rajashekharam V. Malyala, Stephen J. Golden
  • Patent number: 8496896
    Abstract: The present invention relates improving the performance of nitrogen oxide reduction by exposing rich exhaust to catalysts systems comprising a catalyst, wherein the catalyst systems are free of platinum group metals. The present invention also relates to improving reduction of carbon monoxide and hydrocarbon in exhaust by introducing air into a portion of the exhaust between a first catalyst system and a second catalyst system. The present invention also relates to improving nitrogen oxide, carbon monoxide and hydrocarbon reduction by (1) exposing rich exhaust to a first catalysts system, wherein the exhaust has an R value of greater than 1.0 and the first catalyst system comprises a catalyst and is free of platinum group metals and (2) introducing air into a portion of the exhaust in between the first catalyst system and a second catalyst system, wherein the second catalyst system is free of platinum group metals.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: July 30, 2013
    Assignees: Catalytic Solutions, Inc., ECS Holdings, Inc.
    Inventors: Stephen J. Golden, Randal Hatfield, Johnny Ngo, Jason Pless
  • Patent number: 8323601
    Abstract: Embodiments of the present disclosure include a catalyst for the conversion of CO and/or hydrocarbons in an exhaust stream including a Sn compound selected from the group consisting of a binary composition comprising Sn and Ti, a ternary composition comprising Sn, Ti and Zr, and mixtures of any thereof. In those embodiments, the binary composition may include Sn(X)Ti(y)O2, wherein x+y=1, 0.85>y>0. In other embodiments of the present disclosure, the Sn compound includes a ternary composition including Sn(a)Ti(b)Zr(c)O2, wherein a is 0.25, b is 0.25 and c is 0.5. Certain embodiments of this disclosure include a method for the conversion of CO in an exhaust stream, including contacting an exhaust stream containing CO with the catalyst described above containing a Sn compound. In other embodiments, the exhaust stream includes hydrocarbons.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: December 4, 2012
    Assignees: Catalytic Solutions, Inc., ECS Holdings, Inc.
    Inventors: Rachelle Justice, Rajashekharam Malyala, Svetlana Iretskaya, Dylan Trandal, Dien To, Jason Pless, Stephen Golden, Jiho Yoo
  • Patent number: 8318629
    Abstract: A catalyzed diesel particulate filter (CDPF) and a method for filtering particulates from diesel engine exhaust are provided, where the catalyzed diesel particulate filter includes a substrate and a catalyst composition, where the catalyst composition contains at least one first component, at least one second component, and at least one third component, where the first component is at least one first component selected from the group consisting of cerium and a lanthanide and mixtures thereof, the at least one second component is selected from the group consisting of cobalt, copper, manganese and mixtures thereof; and the third component comprises strontium, where the first component, the second component, and the third component are in an oxide form after calcination. The catalyst on the catalyzed diesel particulate filter lowers the temperature at which particulates are removed from the CDPF by oxidizing the particulates on the filter. The catalyzed diesel particulate filter may also include a washcoat.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: November 27, 2012
    Assignees: Catalytic Solutions, Inc., ECS Holdings, Inc.
    Inventors: Keshavaraja Alive, Anne-Laure Baudoux, Stephen J. Golden, Svetlana Iretskaya