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AssigneeEvonik Degussa GmbH
InventorsJürgen Erwin Lang, Hartwig Rauleder, Bodo Frings, Mustafa Siray, Rudolf Schmitz, Dietmar Wewers, Peter Nagler, Rainer Wendt, Georg Markowz
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The object of the invention is a more energy-efficient system for utilizing waste heat and residual gases from the engineered generation of carbon compounds, such as carbon black, graphite or from sugar pyrolysis, using a coupling of energy-heat or a thermal heat-generating plant for generating electrical energy, in particular for operating melt furnaces, and/or for utilizing the waste heat in endothermal processes. The invention also relates to the use of waste heat.
A plant comprising a reactor (4.1) for thermal conversion of carbon-containing compounds, said reactor (4.1) being connected to a combined heat and power system (5.1), by means of which a portion of waste heat (5.3) from the thermal conversion is withdrawn and another portion of the waste heat is converted to mechanical or electrical energy (5.2), or said reactor (4.1) is connected to a thermal power plant (5.1), by means of which the waste heat is converted to mechanical or electrical energy (5.2).
(canceled)
A method of producing electrical energy, comprising using waste heat of a reactor (4.1) for thermal conversion of carbon-containing compounds, by means of a combined heat and power system or of a thermal power plant.
A method for thermal conversion of carbon-containing compounds, comprising using hot process gases (6.3) from a reactor (6.1) for reduction of metallic compounds in a reactor (4.1) to thermally convert carbon in the reactor (4.1), wherein the hot process gases are introduced via a hot gas line (6.3) from the reactor (6.1) into one of the reactor (4.1) and the combined heat and power system (5.1) or the thermal power plant (5.1) to raise steam.
A method of producing silicon dioxide, comprising using a waste heat stream (6.2) of a reactor (6.1) for reduction of metallic compounds in the heat treatment or drying of the silicon dioxide.
Dependencies are inferred from the claim text.