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:
Jan. 22, 2002
Filed:
Aug. 16, 2000
Ari Minkkinen, Saint Nom la Breteche, FR;
Jean-Hervé Le Gal, Paris, FR;
Pierre Marache, Rueil Malmaison, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A process 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, the 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 ( ). Ethane-ethylene mixture ( ) is drawn off laterally from the column, and a phase ( ) that contains the solvent and hydrocarbons with at least 3 carbon atoms is drawn off at the bottom of the column. This phase ( ) is separated in a second distillation column ( ), and C hydrocarbons and, at the bottom of the column, regenerated solvent ( ) that is cooled and that is recycled ( ) in the absorption column are collected.