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AssigneeIfp Energies Nouvelles
InventorsLudovic NOEL, Christophe PIERRE, Sébastien LECARPENTIER, Pierre-Yves LE GOFF, Victorian GAZEYEFF, Matthieu LAFONTAINE
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The invention relates to a process for the catalytic treatment of a hydrocarbon feedstock with continuous catalytic regeneration, in which process said feedstock is successively circulated in a plurality of reaction zones in series (R1, R2, R3, R4), the catalyst circulating as a moving bed successively in the plurality of reaction zones and flowing from the upstream end to the downstream end of each of the reaction zones and being transported by a carrier gas phase g1 from the downstream end of one reaction zone to the upstream end of the next reaction zone, characterized in that said carrier gas phase g1 has a density of greater than or equal to 1 kg/m3.
Process for the catalytic reforming or dehydrogenation of a hydrocarbon feedstock with continuous catalytic regeneration, in which process said feedstock is successively circulated in a plurality of reaction zones in series (R1, R2, R3, R4), the catalyst circulating in a moving bed successively in the plurality of reaction zones and flowing from the upstream end to the downstream end of each of the reaction zones and being transported by a carrier gas phase g1 from the downstream end of one reaction zone to the upstream end of the next reaction zone, characterized in that said conveyor gas phase g1 has a density, measured under the operating conditions at a temperature T of between 200 and 550° C., and at an absolute pressure P of between 0.1 and 0.7 MPa, which is greater than 1 kg/m3, notably greater than or equal to 1.2 kg/m3 or 1.4 kg/m3 or 1.6 kg/m3 or 1.8 kg/m3 or 2 kg/m3 or greater than or equal to 3 kg/m3, and preferably not more than 5 kg/m3 or not more than 4 kg/m3.
Facility for the catalytic treatment of a hydrocarbon feedstock with continuous catalytic regeneration, which is catalytic reforming of a hydrocarbon feedstock, of naphtha type, for the purpose of producing aromatic hydrocarbons and/or petrols, or dehydrogenation of paraffins for the purpose of producing olefins, the facility comprising a plurality of reaction zones (R1, R2, R3, R4) connected in series in which the feedstock successively circulates, and fluid connections ensuring the transport of the catalyst by a carrier gas phase g1 from the downstream end of one reaction zone to the upstream end of the next reaction zone, characterized in that said facility includes devices for adjusting the temperature and/or the pressure and/or the composition of said carrier gas phase g1 to adjust its density to a density, measured under the operating conditions at a temperature T of between 200 and 550° C., and at an absolute pressure P of between 0.1 and 0.7 MPa, which is greater than 1 kg/m3, notably greater than or equal to 1.2 kg/m3 or 1.4 kg/m3 or 1.6 kg/m3 or 1.8 kg/m3 or 2 kg/m3 or greater than or equal to 3 kg/m3, and preferably not more than 5 kg/m3 or not more than 4 kg/m3.
Dependencies are inferred from the claim text.