Thyssen Krupp Ag

Thyssenkrupp Uhde Gmbh

Christoph Meißner

Markus Oles

Klaus Nölker

Reinhold Achatz

Ralph Kleinschmidt

Peter Schmöle

Jens Wagner

Matthias Patrick Krüger

Bärbel Kolbe

Olaf Von Morstein

Denis Krotov

Niels Bredemeyer

Johannes Völkl

Bernd Mielke

Michael Langanki

Lukas Kubasch

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 and a gas-conducting system for gases that occur when producing the pig iron and/or producing the crude steel. According to the invention, the plant complex additionally has a chemical plant or biotechnological plant, connected to the gas-conducting system, and also energy storage for covering at least part of the electricity demand of the plant complex. Also the subject of the invention is a method for operating the plant complex.

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

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 in the production of pig iron and/or in the production of crude steel, and a power-generating plant for electricity generation. The power-generating plant is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the production of pig iron and/or a partial amount of the converter gas. According to the invention, a chemical or biotechnological plant is provided and connected to the gas-conducting system and arranged in parallel with the power-generating plant with respect to the gas supply. Externally obtained electricity and power-generating plant electricity are used to cover the electricity demand of the plant complex.

Plant combination for producing steel and method for operating the plant combination

The invention relates to a process for preparing ammonia gas and COfor urea synthesis. In the process of the invention, a process gas containing nitrogen, hydrogen and carbon dioxide as main components is produced from a metallurgical gas. The metallurgical gas consists of blast furnace gas, or contains blast furnace gas at least as a mixing component. The process gas is fractionated to give a gas stream containing the COcomponent and a gas mixture consisting primarily of Nand H. An ammonia gas suitable for the urea synthesis is produced from the gas mixture by means of ammonia synthesis. COis branched off from the CO-containing gas stream in a purity and amount suitable for the urea synthesis.

Method for preparation of ammonia gas and COfor a urea synthesis process

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Dortmund, Germany

Christoph Meißner