Patents by Inventor Ricardo WILLEMANN

Ricardo WILLEMANN 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 AND APPARATUS FOR SEPARATING GASES
    Publication number: 20200316516
    Abstract: The invention relates to a process and apparatus for separation of gas mixtures with reduced maintenance costs. The process and the apparatus consist of a feed stream separation stage (1), and a retentate separation stage (2), of which both are membrance separation stages, wherein the first retentate stream (7) is heated to temperature higher than the temperature of the feed stream (5), before it is introduced to the retentate separation stage (2), and the total capacity of the membranes used in the retentate separation stage (2) is higher than the total capacity of the membranes used in the feed stream stage (1).
    Type: Application
    Filed: May 31, 2017
    Publication date: October 8, 2020
    Applicant: Evonik Specialty Chemicals (Shanghai) Co.,Ltd.
    Inventors: Zhimin WU, Xiaojue CHEN, Ricardo WILLEMANN