Abstract: A novel process for the conversion of reactor feed to iron carbide is provided. The process includes the step of preheating the reactor feed in an oxidizing atmosphere. The iron carbide produced by the process is particularly useful in the production of steel.
Type:
Grant
Filed:
August 1, 1990
Date of Patent:
August 11, 1992
Assignee:
Iron Carbide Holdings, Limited
Inventors:
Frank M. Stephens, Jr., John P. Hager, Frank A. Stephens
Abstract: A novel design for a fluidized bed reactor is provided. The fluidized bed reactor includes a baffle system to ensure the proper residence time of the feed materials. The fluidized bed reactor also provides a novel method for reducing the negative effects of thermal expansion in the reactor.
Type:
Grant
Filed:
August 1, 1990
Date of Patent:
June 2, 1992
Assignee:
Iron Carbide Holdings, Limited
Inventors:
Frank M. Stephens, Jr., John P. Hager, Frank A. Stephens
Abstract: A method of controlling product quality in a conversion of reactor feed to an iron carbide-containing product in a fluidized bed reactor. A Mossbauer analysis is performed on product samples leaving the fluidized bed reactor, and a regression analysis is performed on the Mossbauer data. Depending upon the results of the regression analysis, process parameters are adjusted in order to obtain a product having a desired composition. Adjustments are made to the temperature and pressure in the fluidized bed reactor, rate of feed to the fluidized bed reactor, and the composition of the process gas which reacts with the reactor feed in the fluidized bed reactor, dependent upon the analysis results.
Type:
Grant
Filed:
August 1, 1990
Date of Patent:
December 17, 1991
Assignee:
Iron Carbide Holdings, Limited
Inventors:
Frank A. Stephens, John P. Hager, Frank M. Stephens, Jr.
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