Patents by Inventor Gustave E. Friedrichs

Gustave E. Friedrichs 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).

  • Method and assembly for converting waste water accumulated in a fossil fuel-fired power generation system
    Patent number: 6152053
    Abstract: A method and an assembly for efficiently converting waste water to a gaseous state in a fossil fuel-fired power generation system is provided. The method includes feeding the slurry to the spray dryer reactor, the slurry having a predetermined ratio of liquid to absorbent, and controlling the feed rate of the slurry into the spray dryer reactor as a function of the monitored sulfur oxide level such that the sulfur oxide level is maintained within an acceptable range. The method also includes supplying supplemental liquid in the form of waste water into the spray dryer reactor in a non-proportionate manner relative to the feed of absorbent into the spray dryer reactor such that the ratio of liquid to absorbent in the spray dryer reactor changes.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: November 28, 2000
    Assignee: ABB Alstom Power Inc.
    Inventors: Thomas S. Czarnecki, Gustave E. Friedrichs, Douglas F. Grabowski, Michael C. Tanca