The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2015
Filed:
Jan. 31, 2013
Yissum Research Development Company of the Hebrew University of Jerusalem Ltd, Jerusalem, IL;
Yoel Sasson, Jerusalem, IL;
Tatyana Sachs, Qiryat Gat, IL;
Effi Dvash, Rehovot, IL;
Zach Barnea, Jerusalem, IL;
Abstract
Provided is a process for controlling heavy metal (e.g., mercury) emission in SO-containing flue gas, comprising passing a stream of the flue gas () through a wet scrubber () where it is brought into contact with a liquid absorbent () comprising an ionic liquid, an oxidizer () and polar protic organic solvent, wherein the amount of said organic solvent is adjusted such that the SOabsorption 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.