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:
Apr. 21, 1987
Filed:
Dec. 21, 1984
Gerhard Linde, Grunwald, DE;
Linde Aktiengesellschaft, Wiesbaden, DE;
Abstract
The invention refers to a process for the removal of undesirable gaseous components from hot flue gases incurred in the combustion of carbonaceous fuels. The flue gas is passed through regenerators for cooling and preliminary cleaning, and subsequently is scrubbed with a physically active solvent for SO.sub.2 absorption. After absorbing SO.sub.2, the solvent is subjected to regeneration and returned to the scrubbing process. For purposes of energy savings, it is suggested to heat exchange the hot flue gas in the regenerators with atmospheric air to cool it to temperatures between 0.degree. and 60.degree. C., and to scrub at this temperature with a solvent consisting predominantly of tetraethyleneglycol dimethylether. The process of the invention permits utilization of the exhaust heat of the flue gas to be purified.