摘要:
The invention concerns a method and facility for CLC of a solid hydrocarbon feedstock which involves injecting the solid hydrocarbon feedstock in such a way as to limit any occurrence of the feedstock sticking to the walls of the injection device. The solid feedstock is introduced into a conveying area operating in a fluidised bed opening into a combustion reactor. A fluidising gas is injected into this conveying area, while controlling the flow of the gas such that the superficial gas velocity in the conveying area is greater than the terminal falling velocity of the particles of the solid hydrocarbon feedstock and the terminal falling velocity of solid particles located in the combustion reactor, and while controlling the temperature of the fluidising gas such that the temperature of the conveying area is less than or equal to 500 0 C.
摘要:
The present invention relates to a process for desulfurizing a cracked naphtha containing organic sulfur compounds comprising the following steps : a) feeding the cracked naphtha to a distillation column comprising a bottom reboiler; b) fractionating said cracked naphtha into a light naphtha fraction and a heavy naphtha fraction which is removed as bottoms from the distillation column; c) feeding the heavy naphtha fraction and hydrogen to a hydrodesulfurization unit containing a hydrodesulfurization catalyst to produce a desulfurized heavy naphtha effluent. The process further comprises a step of providing heat to the distillation column by an intermediate reboiler powered with a heat source having a temperature lower than that one of the bottom reboiler.