摘要:
The present invention relates to a method of enriching a gaseous effluent with acid compounds, comprising the following stages: feeding into a contactor R1 a feed gas and a mixture of at least two liquid phases non-miscible with one another, including an aqueous phase, the feed gas containing at least acid compounds, establishing in said contactor predetermined pressure and temperature conditions for the formation of hydrates consisting of water and of acid compounds, carrying the hydrates dispersed in the phase non-miscible in the aqueous phase by pumping P1 to a hydrate dissociation drum R2, establishing in the drum the hydrate dissociation conditions, discharging the gas resulting from the dissociation enriched in acid compounds in relation to the feed gas.
摘要:
The invention relates to a process, including removal of resins, for the treatment of a hydrocarbon charge, at least 80% of the compounds of which have a boiling point which is above or equal to 340° C., in which process: the charge is sent to a fractionation stage during which the recovery takes place of at least one heavy fraction and at least one light fraction, at least some of the heavy fraction is sent to an extraction stage during which resins contained in said heavy fraction are extracted, and a purified fraction is recovered, a mixture is made which comprises at least part of the purified fraction which was obtained in the extraction stage and at least one light fraction which was obtained in the fractionation stage, and the mixture thus obtained is sent to a cracking stage.
摘要:
The liquid hydrocarbon stream including COS is introduced via line 1 into membrane contactor CM to be placed in contact, through membrane M, with the aqueous alkanolamine solution arriving via line 3. The COS contained in the hydrocarbon stream is absorbed by the aqueous alkanolamine solution. The liquid hydrocarbons from which the COS has been removed are evacuated from CM via line 2. The aqueous solution containing COS is sent via line 4 to zone R to be regenerated. The compounds released during regeneration, particularly COS and COS-derived products, are evacuated from zone R via line 5. The regenerated aqueous alkanolamine solution is recycled via line 3 into membrane contactor CM.
摘要:
For desulfurization of a hydrocarbon-containing feedstock, at least one stage for selective hydrogenation of diolefins present in the initial hydrocarbon feedstock, in the presence of a catalyst of group VIII of the period table, and a stage for extraction by a solvent of the resultant hydrogenated fraction under conditions that provide at least two fractions: a raffinate that comprises for the most part olefins, paraffins and naphthenes and a reduced amount of sulfur-containing compounds that are contained in the initial feedstock, a fraction that contains the majority of the aromatic hydrocarbons and the majority of the sulfur-containing compounds contained in the initial feedstock.