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AssigneesTotal Petrochemicals Research Feluy, Total Raffinage Marketing
InventorsFrançois Bouvart, Robert Duchesnes, Claude Gutle
Estimating the term…
Disclosed is a method for steam-cracking naphtha, according to which a charge of hydrocarbons containing a portion of paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas, and a paraffin-rich change containing at least one paraffin selected among propane, butane, or a mixture thereof are fed through a steam cracker in the presence of vapor. Also disclosed is a hydrocarbon composition suitable for steam cracking, containing a portion of a paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas and a paraffin-rich charge containing at least one paraffin selected among propane, butane, or a mixture thereof.
A method for steam-cracking naphtha comprising passing a feedstock of hydrocarbons through a steam cracker, in the presence of steam;
A composition of hydrocarbons suitable for a steam-cracking method, said composition comprising about 60% to about 80% by weight of a paraffinic naphtha and about 40% to about 20% by weight of a mixture of a first component, that is, a gasoline produced by a fluidized bed catalytic cracking (FCC) unit and a second component including at least one hydrocarbon refinery gas and at least a feedstock rich in paraffins, the paraffinic naphtha having from 10 to 60% by weight of n-paraffins, from 10 to 60% by weight of isoparaffins, from 0 to 35% by weight of naphthenes, from 0 to 1% by weight of olefins and from 0 to 20% by weight of aromatics, the FCC gasoline being an unhydrogenated gasoline having from 0 to 30% by weight of n-paraffins, from 10 to 60% by weight of isoparaffins, from 0 to 80% by weight of naphthenes, from 5 to 80% by weight of olefins and from 0 to 60% by weight of aromatics, the refinery gas having from 0 to 5% by weight of hydrogen, from 0 to 40% by weight of methane, from 0 to 50% by weight of ethylene, from 0 to 80% by weight of ethane, from 0 to 50% by weight of propylene, from 0 to 80% by weight of propane and from 0 to 30% by weight of butanes, and the feedstock rich in paraffins containing at least 50% by weight of saturated hydrocarbons, said feedstock containing at least propane or butane.
A method for controlling a steam cracker, said method comprising:
Dependencies are inferred from the claim text.