A method and device for visbreaking of heavy hydrocarbon feedstocks

摘要

The invention relates to a visbreaking process of a heavy hydrocarbon feedstock in the liquid state, in which this charge is brought to a temperature which is adapted to cause the cracking of at least a portion of the hydrocarbons present, and is then introduced at the lower part of the soaker (3) in which it moves upwards, so as to be evacuated to the upper part of the soaker in the direction of a fractionation unit. & br / according to the invention, a gas, preferably inert, is injected inside the soaker (3) in charge of hydrocarbons, co - current that - latter, at least at the base of the soaker, in the vicinity of its lateral walls.