Patents by Inventor Shumya Kirino

Shumya Kirino 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).

  • Processes for production of isobutene and tertiary butanol
    Patent number: 8637716
    Abstract: An object of the present invention is to provide, for the production of isobutene, a high-yielding, highly-selective, and long-term stable production process of isobutene from TBA. With respect to the production of TBA, an object of the present invention is to provide a TBA production process in which, through long-term stable maintenance of a high reaction activity, long-term continuous operation is enabled and the productivity is improved. The present invention discloses a process for producing isobutene that employs a dehydration temperature of from 200 to 450° C. in use of an alumina catalyst that contains a Na content of 0.6% by weight or less in terms of NaO2 and a Na content of 0.4% by weight in terms of NaO2, and has a specific surface area of from 200 to 600 m2/g.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 28, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Tatsuo Yamaguchi, Hiroyuki Noda, Toru Watanabe, Shumya Kirino
  • PROCESSES FOR PRODUCTION OF ISOBUTENE AND TERTIARY BUTANOL
    Publication number: 20090124835
    Abstract: An object of the present invention is to provide, for the production of isobutene, a high-yielding, highly-selective, and long-term stable production process of isobutene from TBA. With respect to the production of TBA, an object of the present invention is to provide a TBA production process in which, through long-term stable maintenance of a high reaction activity, long-term continuous operation is enabled and the productivity is improved. The present invention discloses a process for producing isobutene that employs a dehydration temperature of from 200 to 450° C. in use of an alumina catalyst that contains a Na content of 0.6% by weight or less in terms of NaO2 and a Na content of 0.4% by weight in terms of NaO2, and has a specific surface area of from 200 to 600 m2/g.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 14, 2009
    Inventors: Tatsuo Yamaguchi, Hiroyuki Noda, Toru Watanabe, Shumya Kirino