Process for the treatment of steel work gases
AssigneeL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsPascal Avart, Jérôme Girard, Geneviève Mure, Emmanuel Pousset
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Abstract
Steel work gases (blast-furnace gases, coke-oven gases, converter gases, etc.) are burnt with an exhaust gas from a gas turbine, optionally with a supply of natural gas and of air, in a postcombustion section between the outlet of the gas turbine and the inlet of a recovery boiler, the steam from which is utilized especially for producing electrical energy.
Claims14
A process of treating steel work gas available from a steel work plant in a combined installation comprising a gas turbine having an exhaust gas outlet, a recovery boiler having a hot gas inlet and a combustion section between the exhaust gas outlet and the hot gas inlet, the process comprising the steps of:
- supplying the steel work gas and an exhaust gas from the gas turbine to the combustion section discharging into the recovery boiler;
- and
- burning at least the steel work gas in the combustion section.
A process of treating residual gas from a steel work plant in a combined installation comprising a gas turbine having an exhaust gas outlet, a recovery boiler having a hot gas inlet and a combustion section between the exhaust gas outlet and the hot gas inlet, the process comprising the steps of:
- supplying the residual gas, at least one fuel gas and an exhaust gas from the gas turbine to the combustion section discharging into the recovery boiler coupled to a steam turbine generator;
- and
- selectively burning the residual gas and at least part of the fuel gas and of the exhaust gas to provide heat to the recovery boiler.
Dependencies are inferred from the claim text.