Use of the continuous blast furnace gas analysis for supervision and regulation of the blast furnace operation
AssigneeAugust Thyssen-Hutte AG
InventorsEitel Voss, Karl-Heinz Waldofner, Kurt Harz
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Abstract
An improvement in the process for regulating the operation of a blast furnace in response to analysis of the effluent blast furnace gas residing in continuously admixing the blast furnace gas with a carrier gas, removing from said admixture CO, CO.sub.2 and H.sub.2 thereafter feeding the remaining gas admixture comprising carrier gas and N.sub.2 into a nitrogen measuring means. Also disclosed is an apparatus therefore, especially one which permits said removal by oxidation of CO and H.sub.2 and adsorption of the CO.sub.2 and H.sub.2 O.
Claims24
In a process for continuously regulating the operation of a blast furnace in response to analysis of the effluent blast furnace gas containing CO, CO.sub.2, N.sub.2 and H.sub.2 the improvement which comprises continuously admixing said blast furnace gas with a carrier gas, removing from the resultant admixture CO, CO.sub.2 and H.sub.2 and thereafter continuously feeding the remaining admixture comprising said carrier gas and said N.sub.2 into a nitrogen measuring means.
An apparatus for directly measuring the amount of nitrogen in a blast furnace gas which comprises between a gas mixing apparatus and a nitrogen measuring means a first oxidation reactor containing an oxidation catalyst in series fluid communication with a first absorption reactor containing a size or shape selective adsorbent which adsorbs both CO.sub.2 and water, a second oxidation reactor containing an oxidation catalyst in series fluid communication with a second adsorption reactor containing a size or shape selective adsorbent which adsorbs both CO.sub.2 and water, said first oxidation and adsorption reactors being in parallel with said second oxidation and adsorption reactors, all of said reactors being in fluid communication up stream of said oxidation reactors with said gas mixing apparatus and downstream of said adsorption reactors with said nitrogen measuring means, and a feed of blast furnace gas admixed with carrier gas means for alternating the feed of said admixed gas to either said first oxidation and adsorption reactors or said second oxidation and adsorption reactors while passing the effluent therefrom to said nitrogen measuring means.
Dependencies are inferred from the claim text.