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:
Aug. 26, 2025
Filed:
Feb. 15, 2022
Linde Gmbh, Pullach, DE;
Basf SE, Ludwigshafen, DE;
Benedikt Keller, Munich, DE;
Peter Brehm, Unterschleissheim, DE;
Clemens Prunner, Neufarn, DE;
Hendrik Reyneke, Munich, DE;
Martin Kamann, Oberhaching, DE;
Gunter Garbe, Rodenbach, DE;
Daniel Keck, Ketsch, DE;
Carl Schietekat, Sint-Niklaas, BE;
Axel Sperber, Ludwigshafen, DE;
Alexander Weck, Hochdorf-Assenheim, DE;
Linde GmbH, Pullach, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A method for producing ethylene and/or other olefins by steam cracking includes charging one or more crackers with a paraffin-containing feed and withdrawing a crude gas from the one or more crackers. The crude gas is subjected at least in part to a treatment comprising a crude gas compression and a thermal separation using a C2 refrigerant and a C3 refrigerant. A crude gas compressor is used for the crude gas compression, wherein the ethylene refrigerant is compressed using a C2 refrigerant compressor. The propylene refrigerant is compressed using a C3 refrigerant compressor. The crude gas compressor comprises two serial compressor trains. The compressor trains, the C2 refrigerant compressor and the C3 refrigerant compressor are each operated at least in part using electrical drives, which have at least partially identical power features, are provided as variable-speed drives of the same construction, and are each fed via frequency converters.