Patents by Inventor C. Mark Tsang

C. Mark Tsang 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).

  • Ammonia injection for minimizing waste water treatment
    Publication number: 20030047716
    Abstract: In accordance with the present invention, a basic material, preferably ammonia, is injected into the stream of soot water leaving the gasification reactor prior to being processed in a filtration-type soot removal unit. The elevated pH of the soot water causes more metals to remain in the filter cake. Thus, the metals content of the grey water is reduced. More grey water can then be recycled back to the gasification unit, with less grey water being handled by the wastewater treatment unit.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Applicant: Texaco Inc.
    Inventor: C. Mark Tsang