The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2019
Filed:
Dec. 11, 2014
Thyssenkrupp Ag, Essen, DE;
Christoph Meißner, Dortmund, DE;
Denis Krotov, Dortmund, DE;
Olaf von Morstein, Essen, DE;
Matthias Patrick Krüger, Herne, DE;
THYSSENKRUPP AG, Essen, DE;
Abstract
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.