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:
Mar. 19, 2002
Filed:
Aug. 16, 2000
Ari Minkkinen, Saint Nom la Breteche, FR;
Jean-Hervé Le Gal, Paris, FR;
Pierre Marache, Rueil Malmaison, FR;
Institute Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A process and a device for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent ( ) is absorbed in an absorption column ( ) by a cooled solvent ( ). At the bottom of the column, liquid phase ( ) that contains the solvent and the C hydrocarbons is recovered and hydrogenated ( ). The hydrogenation effluent that contains the solvent is introduced into a first distillation column ( ) where the solvent is regenerated. The solvent is cooled and recycled at the top of absorption column ( ). The C hydrocarbons are collected at the top, and a condensed liquid phase is distilled in a second distillation column ( ) to recover a C fraction that consists of ethane and ethylene.