Patents by Inventor Ralph C. Dehaas

Ralph C. Dehaas 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: 11452997
    Abstract: Isobutanol may be converted into predominantly C12+ olefin oligomers under specified conditions. Such methods may comprise: contacting a feed comprising isobutanol with a zeolite solid acid catalyst having a MWW framework under conditions effective to convert the isobutanol into a product comprising C4n olefin oligomers, wherein n is an integer having a value of two or greater and about 80 wt. % or greater of the C4n olefin oligomers are larger than C8.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: September 27, 2022
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Jihad M Dakka, Patrick L Hanks, Brandon M Carcuffe, Cynthia F Omilian, Ralph C DeHaas, Arsam Behkish
  • Publication number: 20210229081
    Abstract: Isobutanol may be converted into predominantly C12+ olefin oligomers under specified conditions. Such methods may comprise: contacting a feed comprising isobutanol with a zeolite solid acid catalyst having a MWW framework under conditions effective to convert the isobutanol into a product comprising Can olefin oligomers, wherein n is an integer having a value of two or greater and about 80 wt. % or greater of the Can olefin oligomers are larger than C8.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 29, 2021
    Inventors: Jihad M Dakka, Patrick L Hanks, Brandon M Carcuffe, Cynthia F Omilian, Ralph C DeHaas, Arsam Behkish
  • Patent number: 10421699
    Abstract: Systems and methods are provided for forming alkylate from a tertiary alcohol feed. Olefins for the alkylation reaction can be generated from a portion of the tertiary alcohol feed. The tertiary alcohol feed can be obtained, for example, by selective oxidation to convert a portion of an isoparaffin-containing feed into alcohol, such as conversion of isobutane to t-butyl alcohol. The alcohol can then be converted to an alkene, such as conversion of t-butyl alcohol to isobutene, in the alkylation reaction environment in the presence of a solid acid catalyst. The solid acid catalyst can then facilitate dimerization of the alkenes (e.g. isobutene) to form C8+ olefins (e.g. isooctene). A catalyst having an MWW framework is an example of a suitable solid acid catalyst.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: September 24, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jihad M. Dakka, David B. Spry, Cynthia F. Omilian, Matthew S. Ide, Jenna L. Walp, Ralph C. Dehaas
  • Publication number: 20180339263
    Abstract: Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve using a selectivation agent to selectivate the adsorbent material. The selectivation agent may be utilized with the swing adsorption process as an in-situ process. The adsorbent material may be utilized for swing adsorption processes to remove one or more contaminants from a feed stream.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 29, 2018
    Inventors: Ralph C. Dehaas, Jean W. Beeckman, Ivy Dawn Johnson, Dana L. Mazzaro, Tilman W. Beutel, Bhupender S. Minhas, Keith R. Hajkowski
  • Publication number: 20180162788
    Abstract: Systems and methods are provided for forming alkylate from a tertiary alcohol feed. Olefins for the alkylation reaction can be generated from a portion of the tertiary alcohol feed. The tertiary alcohol feed can be obtained, for example, by selective oxidation to convert a portion of an isoparaffin-containing feed into alcohol, such as conversion of isobutane to t-butyl alcohol. The alcohol can then be converted to an alkene, such as conversion of t-butyl alcohol to isobutene, in the alkylation reaction environment in the presence of a solid acid catalyst. The solid acid catalyst can then facilitate dimerization of the alkenes (e.g. isobutene) to form C8+ olefins (e.g. isooctene). A catalyst having an MWW framework is an example of a suitable solid acid catalyst.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 14, 2018
    Inventors: Jihad M. Dakka, David B. Spry, Cynthia F. Omilian, Matthew S. Ide, Jenna L. Walp, Ralph C. Dehaas