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:
Jul. 20, 1999
Filed:
Dec. 04, 1996
Marc Fersing, St. Andresse, FR;
Luc Gouzien, Le Havre, FR;
Elisabeth Mouchot, Etoutteville, FR;
Geraud Bourley, Martiques, FR;
Total Rafinage Distribution S.A., Puteaux, FR;
Abstract
In a process and apparatus for visbreaking a heavy hydrocarbon feedstock in the liquid state, whereby the feedstock is brought to an appropriate temperature to cause cracking of at least part of the hydrocarbons present, and is then introduced into the bottom of a soaker (3) wherein it travels from bottom to top, and is then discharged from the top of said soaker (3) and directed to a fractionation unit, the improvement wherein a preferably inert gas is injected into the hydrocarbon feedstock inside the soaker (3), in the vicinity of the soaker side walls, at least at the bottom of the soaker (3) and the gas is injected upward along the side walls of the soaker (3) and flows from bottom to top along said walls co-currently with the hydrocarbon feedstock.