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:
May. 07, 2013
Filed:
Jun. 23, 2011
Applicant:
Peter John Hurley, Huddersfield, GB;
Inventor:
Peter John Hurley, Huddersfield, GB;
Assignee:
Cylenchar Limited, West Sussex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/34 (2006.01); C09K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of controlling air pollution arising from sulphur trioxide and or sulphuric acid in coal combustion gases, combustion gases passing through the demister region of a wet flue gas desulphurization unit are exposed to a sulphide based reducing agent such as hydrogen sulphide, such that metal catalysts promoting the oxidation of ammonia leading to the formation of nitrosylsulfuric acid are poisoned and so prevented from catalysing the formation and discharge of sulphuric acid in aerosol emissions in stack gases.