Process for controlling the product quality in the conversion of

Details Process for controlling the product quality in the conversion of Process for controlling the product quality in the conversion of

1990-08-01

1991-12-17

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Process control responsive to sensed condition

75446, 75507, 423439, C22B 514, C01B 3130

Patent

active

050731947

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.

REFERENCES:
patent: Re32247 (1986-09-01), Stephens, Jr.
patent: 3356488 (1967-12-01), Walsh
patent: 3885023 (1975-05-01), Gray et al.
patent: 4053301 (1977-10-01), Stephens, Jr.
patent: 4398945 (1983-08-01), Stephens, Jr.

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