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. 09, 1989
Filed:
Apr. 21, 1988
Applicant:
Inventors:
Brian W Nelson, Kent, OH (US);
Sidney G Nelson, Hudson, OH (US);
Assignee:
Sanitech, Inc., Twinsburg, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01D / ;
U.S. Cl.
CPC ...
502 50 ; 55 73 ; 55 74 ; 423244 ; 423239 ; 502517 ;
Abstract
A process is disclosed for regenerating spent MgO-vermiculite and MgO-perlite sorbents, where the sorbents have been employed beforehand to remove sulfur and nitrogen oxides from flue gases. The regeneration process consists of a series of heating and cooling steps performed in controlled atmospheres during which time sulfur oxides and elemental sulfur are recovered, nitrogen oxides are destroyed, and the sorbents are returned substantially to their original condition.