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:
Aug. 06, 1985
Filed:
Jul. 08, 1983
Helmut Ringel, Niederzier-Hambach, DE;
Abstract
For the separation and recycling of NO.sub.x gas constituents through adstion and desorption on a molecular sieve the molecular sieve is passed through in sequential, alternating process steps. Initially, the NO.sub.x is retained up to saturation of the molecular sieve. Thereafter the molecular sieve is regenerated through the introduction of gas. In order to reduce the demands during scavenging of the molecular sieve, and then to facilitate the provision of a closed separating and recycling system, the molecular sieve for regeneration is heated to a temperature for desorbing the adsorbed NO.sub.x and scavenged with a portion of the waste gas containing the NO.sub.x which is to be cleaned. The scavenging gas flow is recycled after passing through the molecular sieve.