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:
May. 08, 2012
Filed:
May. 28, 2009
Joachim Kotter, Markkleeberg, DE;
Hans-dieter Winkler, Leipzig, DE;
Peter Mews, Mittweida, DE;
Michel Lempereur, Corbais, BE;
Dominique Balthasart, Brussels, BE;
Michel Strebelle, Brussels, BE;
Joachim Kotter, Markkleeberg, DE;
Hans-Dieter Winkler, Leipzig, DE;
Peter Mews, Mittweida, DE;
Michel Lempereur, Corbais, BE;
Dominique Balthasart, Brussels, BE;
Michel Strebelle, Brussels, BE;
Solvay (Societe Anonyme), Brussels, BE;
Abstract
Process for the production of ethylene for chemical use starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in a cracking oven, thus producing a mixture of cracking products; b) the mixture of cracking products is subjected to a succession of treatment steps, including a compression step, which makes it possible to obtain a purified crude gas stream; c) the purified crude gas stream is then cooled to a temperature where hydrocarbons with 6 and more carbon atoms condense so that they can be removed from the purified crude gas stream; d) the resulting purified gas stream is afterwards supplied to one separating column, where a fraction A containing hydrogen, methane and ethylene is separated at the head of the column and a heavy fraction C is separated at the bottom of the column; e) a part of the reflux of this column is supplied to a refrigeration cycle leading to a fraction B enriched with ethylene; and f) the fraction A and fraction B are separately supplied to chemical use of ethylene.