Title: Method and plant for reducing oxidic
Application Number: 85103258 Application Date: 1985.04.27
Publication Number: 1004284 Publication Date: 1986.10.22
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10J3/16,H01H1/02
Applicant(s) Name: SKF Steel Engineering Aktiebolag (SW) P.O. Box 202 Address:
Inventor(s) Name: Bjorn Hammarskog, Goran Mathisson
Attorney & Agent: WU XIAONAN LI LUOYING
Abstract:
     A reduction gas is produced containing mainly carbon monoxide and hydrogen from carbonaceous or hydrocarbon-containing material by means of thermal energy from at least one plasma generator in a separate gas-generating shaft. The gas after sulphur separation and temp. adjustment, is conducted to a reduction shaft containing the oxidic material. The partially spent reduction gas withdrawn from the shaft is freed from water and dust-like particles, after which a part-flow of the return-gas is returned to the process and a small part-flow of the return gas is used for pressure regulation. A small part-flow of said partially spent gas intended for re-use in the process is caused to pass a CO2 scrubber and is then used to adjust the H2/CO ratio in the final reduction gas.
Time: 15
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