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:
Nov. 21, 1978
Filed:
Aug. 05, 1977
David W DeBerry, Austin, TX (US);
Southern California Edison Company, Rosemead, CA (US);
Abstract
An apparatus and method for removing oxides of nitrogen and sulfur from flue gases. The apparatus comprises an enclosure wherein the flue gases are washed with a scrubbing solution, preferably containing ferrous chelates and sulfite ions, and an electrochemical cell for regenerating the spent scrubbing solution. The electrochemical cell preferably comprises a plurality of cathode and anode compartments separated by ion transfer membranes. The spent scrubbing solution is regenerated by passing the solution through the cathode compartments of the electrochemical cell. The regeneration process involves the removal of the sulfate ions from the scrubbing solutions through the ion transfer membranes and the reduction of the nonreactive ferric chelate to the reactive ferrous chelate.