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. 03, 2015
Filed:
Nov. 11, 2010
Peter Ulrich Koss, Zollikon, CH;
Peter Ulrich Koss, Zollikon, CH;
ALSTOM Technology Ltd, Baden, CH;
Abstract
The present invention relates to a gas cleaning system for cleaning a gas stream containing carbon dioxide and sulfur dioxide, said gas cleaning system comprising: a pre-conditioning section (); a COremoval stage (); and a post-conditioning section (); said pre-conditioning section comprising at least two gas-liquid contacting devices () arranged upstream of the COremoval stage () with respect to the flow direction of the gas; and said post-conditioning section comprising at least two gas-liquid contacting devices () arranged downstream of the COremoval stage with respect to the flow direction of the gas. The present invention further relates to a method for cleaning a gas stream containing carbon dioxide and sulfur dioxide, said method including removing, at least partly, carbon dioxide from the gas stream in a carbon dioxide removal step by bringing the gas stream into contact with a liquid comprising ammonia; contacting the gas stream with liquid in at least two steps upstream of the carbon dioxide removal step; and contacting the gas stream with liquid in at least two steps downstream of the carbon dioxide removal step.