Patents by Inventor Dan M. Hasenberg

Dan M. Hasenberg 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).

  • Process to isomerize 1-butene to 2-butene
    Patent number: 6852901
    Abstract: A process is provided to produce a 2-alkene product from a 1-alkene-containing feed stream. The process comprises contacting the 1-alkene-containing feed stream in a reactor zone to isomerize the 1-alkene-containing feed stream to produce the 2-alkene product. More specifically, a process is provided to produce a 2-butene product from a 1-butene containing feed stream.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: February 8, 2005
    Assignee: Chevron Phillips Chemical Company
    Inventors: Dan M. Hasenberg, Mitchell D. Refvik, Michael S. Matson
  • Process to isomerize 1-butene to 2-butene
    Publication number: 20040106836
    Abstract: A process is provided to produce a 2-alkene product from a 1-alkene-containing feed stream. The process comprises contacting the 1-alkene-containing feed stream in a reactor zone to isomerize the 1-alkene-containing feed stream to produce the 2-alkene product. More specifically, a process is provided to produce a 2-butene product from a 1-butene containing feed stream.
    Type: Application
    Filed: May 28, 2002
    Publication date: June 3, 2004
    Inventors: Dan M. Hasenberg, Mitchell D. Refvik, Michael S. Matson
  • Process to prepare low carbon disulfide containing dimethyl sulfide
    Patent number: 6736879
    Abstract: An adsorption method is disclosed for removal of acid gas from a sulfur compound stream. The method relates to a novel process to remove acid gas from a sulfur compound stream by adsorption on an adsorption media adsorbent followed by regeneration of the adsorption media after the adsorption capacity has been reached. The adsorption media comprises an activated alumina, which has been previously treated with one or more alkali metal compounds, one or more alkaline earth metal compounds, or a mixture thereof; and then regenerating the adsorbent after the adsorption capacity has been reached.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 18, 2004
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Dan M. Hasenberg, Stan A. Zisman, Mitchell D. Refvik
  • PROCESS TO PREPARE LOW CARBON DISULFIDE CONTAINING DIMETHYL SULFIDE
    Publication number: 20030205134
    Abstract: An adsorption method is disclosed for removal of acid gas from a sulfur compound stream. The method relates to a novel process to remove acid gas from a sulfur compound stream by adsorption on an adsorption media adsorbent followed by regeneration of the adsorption media after the adsorption capacity has been reached. The adsorption media comprises an activated alumina, which has been previously treated with one or more alkali metal compounds, one or more alkaline earth metal compounds, or a mixture thereof; and then regenerating the adsorbent after the adsorption capacity has been reached.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Inventors: Dan M. Hasenberg, Stan A. Zisman, Mitchell D. Refvik