Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1996-12-04
1999-07-20
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208106, 208 67, 208 75, 208 72, 208 68, C10G 914
Patent
active
059252367
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.
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Bourley Geraud
Fersing Marc
Gouzien Luc
Mouchot Elisabeth
Griffin Walter D.
Preisch Nadine
S. Safford A. Thomas
Total Rafinage Distribution S.A.
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