Patents by Inventor Kye Sang Yoo

Kye Sang Yoo 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 for separation and recycle of pure sulfur dioxide from a gaseous mixture in is cycle with ionic liquids
    Patent number: 7749475
    Abstract: The present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle. More specifically, the present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle using an ionic liquid under a specific condition. When compared with the conventional amine-based absorbent, the use of the ionic liquid enables continuous absorption and stripping of SO2 even at high temperature, and enables a reversible absorption of SO2 without loss, decomposition or degradation of a solvent due to good chemical stability, thereby enabling separation and recycling of pure SO2 from a gaseous mixture in the IS cycle.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 6, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Chang Soo Kim, Gyeong Taek Gong, Kye Sang Yoo, Byung Gwon Lee, Kwang Deog Jung, Hong Gon Kim, Byoung Sung Ahn, Oh Shim Joo
  • METHOD FOR SEPARATION AND RECYCLE OF PURE SULFUR DIOXIDE FROM A GASEOUS MIXTURE IN IS CYCLE WITH IONIC LIQUIDS
    Publication number: 20100015040
    Abstract: The present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle. More specifically, the present invention relates to a method for separation and recycling of pure sulfur dioxide from a gaseous mixture in the IS cycle using an ionic liquid under a specific condition. When compared with the conventional amine-based absorbent, the use of the ionic liquid enables continuous absorption and stripping of SO2 even at high temperature, and enables a reversible absorption of SO2 without loss, decomposition or degradation of a solvent due to good chemical stability, thereby enabling separation and recycling of pure SO2 from a gaseous mixture in the IS cycle.
    Type: Application
    Filed: December 21, 2007
    Publication date: January 21, 2010
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chang Soo Kim, Gyeong Taek Gong, Kye Sang Yoo, Byung Gwon Lee, Kwang Deog Jung, Hong Gon Kim, Byoung Sung Ahn, Oh Shim Joo