Patents by Inventor Effi Dvash

Effi Dvash 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 for controlling the emission of flue gases
    Patent number: 9561466
    Abstract: The invention is a process for absorbing sulfur dioxide from a gaseous stream with the aid of an ionic liquid, followed by the release of sulfur dioxide from the ionic liquid on addition of a polar solvent and the regeneration of the ionic liquid.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: February 7, 2017
    Assignee: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
    Inventors: Yoel Sasson, Tatyana Sachs, Effi Dvash, Zach Barnea
  • PROCESS FOR CONTROLLING THE EMISSION OF FLUE GASES
    Publication number: 20150314234
    Abstract: The invention is a process for absorbing sulfur dioxide from a gaseous stream with the aid of an ionic liquid, followed by the release of sulfur dioxide from the ionic liquid on addition of a polar solvent and the regeneration of the ionic liquid.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Yoel SASSON, Tatyana SACHS, Effi DVASH, Zach BARNEA
  • Process for controlling the emission of flue gases
    Patent number: 9114360
    Abstract: Provided is a process for controlling heavy metal (e.g., mercury) emission in SO2-containing flue gas, comprising passing a stream of the flue gas (2) through a wet scrubber (1) where it is brought into contact with a liquid absorbent (8) comprising an ionic liquid, an oxidizer (11) and polar protic organic solvent, wherein the amount of said organic solvent is adjusted such that the SO2 absorption is minimized while operating said wet scrubber at a temperature lower than the normal working temperature that would be used in the absence of said solvent. The process may be preceded by an initial stage where a fluoride-containing liquid is used for reducing the amount of sulfur dioxide in the flue gas stream; the sulfur dioxide can be subsequently desorbed from the fluoride-containing liquid upon the addition of a polar solvent.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 25, 2015
    Assignee: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
    Inventors: Yoel Sasson, Tatyana Sachs, Effi Dvash, Zach Barnea
  • PROCESS FOR CONTROLLING THE EMISSION OF FLUE GASES
    Publication number: 20140369916
    Abstract: Provided is a process for controlling heavy metal (e.g., mercury) emission in S02-containing flue gas, comprising passing a stream of the flue gas (2) through a wet scrubber (1) where it is brought into contact with a liquid absorbent (8) comprising an ionic liquid, an oxidizer (11) and polar protic organic solvent, wherein the amount of said organic solvent is adjusted such that the SO2 absorption is minimized while operating said wet scrubber at a temperature lower than the normal working temperature that would be used in the absence of said solvent. The process may be preceded by an initial stage where a fluoride-containing liquid is used for reducing the amount of sulfur dioxide in the flue gas stream; the sulfur dioxide can be subsequently desorbed from the fluoride-containing liquid upon the addition of a polar solvent.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 18, 2014
    Applicant: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Yoel Sasson, Tatyana Sachs, Effi Dvash, Zach Barnea