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:
Mar. 24, 1981
Filed:
Mar. 05, 1979
Fritz Jakob, Achmuhle, DE;
Linde Aktiengesellschaft, Wiesbaden, DE;
Abstract
The heat content of corrosion and dust particle-laden gases is recovered in a process employing at least two regenerators cyclically interchangeable. In the heat-release cycle, hot waste gases are passed through the regenerator in one direction, thereby releasing their heat content to the packing, e.g., quartzite rocks or porcelain Raschig rings. In the heat recovery cycle, a clean gas, e.g., superatmospheric air, is passed through the hot regenerator in the opposite direction, thereby recovering the heat content of the packing. Immediately prior to switching the regenerator from the heat release cycle to the heat recovery cycle, at least a portion of the high pressure recovery gas (e.g., air) from the regenerator operated in the heat recovery cycle is introduced into the warm end of the regenerator in the heat release cycle, thereby creating a high pressure switching surge. The switching surge is a purging step inasmuch as if effectively dislodges dust particles entrained in the packing and carries them to a downstream filter. The heat content of the resultant hot clean gas is recovered in a waste gas boiler of preferably a turbine, especially turbine coupled to a compressor for entering air.