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. 14, 1978
Filed:
Aug. 01, 1977
Theodore A Rado, Oklahoma City, OK (US);
Alan J Morris, Oklahoma City, OK (US);
Kerr-McGee Chemical Corporation, Oklahoma City, OK (US);
Abstract
This invention relates to an improved heat exchanger gas outlet tube in a cyclone separator. The apparatus is adapted for use with highly corrosive halide-containing gas-solids suspensions at elevated temperatures. In accordance with this invention, a flanged, hollow nickel alloy gas outlet tube is provided with multiple inlets and outlets arranged circumferentially around a portion of the gas outlet tube. A hollow passage contained within said gas outlet tube is provided with a pair of partial longitudinal baffles positioned in such a manner that cooling air or other compatible cooling fluid may flow within the passage and be caused to flow longitudinally down the length of the tube, in one portion of the passage, before passing below the partial baffles and the flow back upwardly through the other portion of the passage. The flow of cooling air or other compatible cooling fluid is maintained such that sufficient heat transfer occurs to reduce the temperature of the surface of the gas outlet tube to a level below about 1100.degree. F. to alleviate corrosion problems. In addition, a controlled quantity of non-volatile metal halides is deposited upon the exterior surface of the gas outlet tube, by sublimation, to further protect the nickel alloy from the highly corrosive environment.