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:
Jul. 23, 1991
Filed:
Nov. 02, 1988
Applicant:
Inventor:
Jouko Laine, Tampere, FI;
Assignee:
Oy Tampella AB, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01J / ;
U.S. Cl.
CPC ...
423244 ;
Abstract
A method of removing sulphur oxides from flue gases, in which method lime such as calcium carbonate is fed into a separate reactor space positioned in a boiler. In the reactor space the lime is converted into calcium oxide and carbon dioxide under the influence of the temperature prevailing in the furnace of the boiler. Pressurized air causes the calcinating lime and the obtained calcium oxide to flow through the tubular space, whereby at the other end of the space substantially all lime has been converted into oxide and is fed therefrom into the boiler among its flow of flue gases for the actual desulphuration reaction.