Patents by Inventor Rui de Menezes

Rui de Menezes 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).

  • Publication number: 20220041529
    Abstract: A process for the treatment of sulfidic spent caustic, conditioned catalyst regeneration vent gas, C4 isomerization off gas, various and hydrocarbon containing liquid and gaseous streams in addition to toxic containing streams like cyanidic off gas and waste water in a propane/butane dehydrogenation complex is described. Various effluent streams are combined in appropriate collection vessels, including an off-gas knockout drum, a hydrocarbon buffer vessel, a spent caustic buffer vessel, an optional a waste water buffer vessel, and a fuel gas knockout drum. Streams from these vessels are sent to a thermal oxidation system.
    Type: Application
    Filed: June 29, 2021
    Publication date: February 10, 2022
    Inventors: Rui de Menezes, Jan De Ren, Tom Jackson, Madan K.M. Desai, Adam J. Kanyuh
  • Patent number: 11186784
    Abstract: New/fresh catalyst is added to a dehydrogenation unit and aged catalyst is removed from the dehydrogenation unit on a continuous or semi-continuous basis while the dehydrogenation unit is in operation. The conversion achieved by the higher activity catalyst results in the production rate of olefin product being maintained at near start-of-run production for longer, with a slower rate of decline. The higher activity catalyst extends run time, reduces feed consumption for each unit of olefin product, and minimizes fresh catalyst expenses.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 30, 2021
    Assignee: UOP LLC
    Inventors: Alan E. Cepla, Gary A. Dziabis, Manuela Serban, Rui de Menezes, Massimiliano Cantarelli
  • Publication number: 20200115641
    Abstract: New/fresh catalyst is added to a dehydrogenation unit and aged catalyst is removed from the dehydrogenation unit on a continuous or semi-continuous basis while the dehydrogenation unit is in operation. The conversion achieved by the higher activity catalyst results in the production rate of olefin product being maintained at near start-of-run production for longer, with a slower rate of decline. The higher activity catalyst extends run time, reduces feed consumption for each unit of olefin product, and minimizes fresh catalyst expenses.
    Type: Application
    Filed: July 16, 2019
    Publication date: April 16, 2020
    Inventors: Alan E. Cepla, Gary A. Dziabis, Manuela Serban, Rui de Menezes, Massimiliano Cantarelli