Combined system for producing steel and method for operating the combined system

US10697031B2 · kind B2 · utility

Assignee

• thyssenkrupp AG · DE

Inventors

• Reinhold Achatz · Essen, DE
• Jens Wagner · Untergruppenbach, DE
• Markus Oles · Hattingen, DE
• Peter Schmöle · Dortmund, DE
• Ralph Kleinschmidt · Pulheim, DE
• Stefan GEHRMANN · Dortmund, DE
• Bärbel Kolbe · Witten, DE
• Matthias Krüger · Herne, DE

Key dates

• Filing date: Dec 11, 2014
• Grant date: Jun 30, 2020
• Expiry date: May 26, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/133
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur when producing the pig iron and/or the crude steel, and a power-generating plant for electricity generation. The power-generating plant is designed as a gas-turbine power-generating plant or gas-turbine and steam-turbine power-generating plant and is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the blast furnace and/or a partial amount of the converter gas. The plant complex additionally comprises a chemical plant and a biotechnological plant, the power-generating plant, the chemical plant and the biotechnological plant being arranged in a parallel setup with regard to the gas supply. The gas-conducting system comprises an operationally controllable gas-distributing device for dividing the streams of gas.