Patents by Inventor Hee Eum

Hee Eum 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).

  • Sorbent for removal of trace hazardous air pollutants from combustion flue gas and preparation method thereof
    Publication number: 20070179056
    Abstract: Disclosed is a sorbent for the removal of mercury from combustion flue gas and a preparation method thereof. The sorbent includes an activated heavy oil heavy ash impregnated with 0.1-30% by weight of any chemical substance selected from sulfur, iodine, bromine and chlorine. The sorbent is prepared in an economical manner using heavy oil fly ash, industrial waste generated from heavy oil-fired boilers, and has excellent sorption performance for mercury, so that a low concentration of mercury contained in combustion flue gas discharged from large-scale boilers can be removed by injection of a small amount of the sorbent. Thus, the invention can prevent a reduction in the recycling rate of coal fly ash in coal-fired power plants and minimize operation cost.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 2, 2007
    Inventors: Jeom Baek, Hee Eum, Chong Ryu, Kyung-Ryong Jang, Si Lee
  • Absorbent and method for separating acid gases from gas mixture
    Publication number: 20060270551
    Abstract: Disclosed herein is an absorbent for separating acid gases, such as CO2, H2S and COS, from a gas mixture containing the acid gases wherein the absorbent comprises sodium glycinate. Further disclosed is a method for separating acid gases from a gas mixture using the absorbent.
    Type: Application
    Filed: November 23, 2005
    Publication date: November 30, 2006
    Inventors: Jyung Jang, Hee Eum, Dong Kim, Jun Kim, Byoung Min, Seung Lee