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. 06, 2007
Filed:
Aug. 28, 2002
Henri Paradowski, Cergy, FR;
Henri Paradowski, Cergy, FR;
Technip France, , FR;
Abstract
The invention relates to a method for fractionating a gas produced by the pyrolysis of hydrocarbons () for the recovery of Cand higher hydrocarbons, in particular ethylene and ethane, comprising an operation () for compressing and drying gas () as a result of it passing into a series of compressors (), an operation () for progressively cooling and partially liquefying the gas produced by compression and drying operation () as a result of it successively passing into a cryogenic exchanger (), and a distillation operation () in a column (), and the corresponding installation. According to the invention, cryogenic exchanger () is cooled by at least one cooling liquid () which is liquid natural gas (LNG).