Abstract:
The invention relates to a process for the conversion of hydrogen and one or more oxides of carbon to hydrocarbons, which process comprises: contacting hydrogen and one or more oxides of carbon with a catalyst in a reaction zone; removing from the reaction zone an outlet stream comprising unreacted hydrogen, unreacted one or more oxides of carbon and one or more hydrocarbons and feeding the outlet stream to a separation zone in which the outlet stream is divided into at least three fractions, in which; a first fraction predominantly comprises unreacted hydrogen, unreacted one or more oxides of carbon and hydrocarbons having from 1 to 4 carbon atoms; a second fraction predominantly comprises hydrocarbons having 5 to 9 carbon atoms, at least a portion of which hydrocarbons having from 5 to 9 carbon atoms are olefinic; and a third fraction predominantly comprises hydrocarbons having 10 or more carbon atoms; characterised in that at least a portion of the second fraction is recycled to the reaction zone.
Abstract:
Procédé d'isomérisation d'une charge de composés hydrocarbonés comportant des composés hydrocarbonés C 5 et/ou C 6 , dans lequel procédé : a) on alimente une unité d'isomérisation (1) d'au moins une fraction liquide de ladite charge de composés hydrocarbonés et on effectue l'isomérisation en présence d'un catalyseur chloré ; b) on alimente une unité de stabilisation (20) comprenant au moins une colonne de stabilisation (2) par l'effluent issu de l'unité d'isomérisation (1) et on effectue une séparation dans ladite unité de stabilisation (2) ; c) on réalise dans une unité d'absorption (7) comprenant au moins une colonne d'absorption (3) ; d) on extrait de l'unité d'absorption (7) un flux liquide enrichi en composés chlorés et on le renvoie à l'unité d'isomérisation (1) ; e) on extrait de l'unité de stabilisation (20) ledit flux liquide comprenant au moins un isomérat de la charge de composés hydrocarbonés.
Abstract:
A process for operating a reforming reactor system comprising operating a plurality of reactors until at least one reactor is deemed to have an operational issue, wherein each of the plurality of reactors contains a catalyst capable of converting at least a portion of a hydrocarbon stream to aromatic hydrocarbons, isolating the at least one reactor deemed to have the operational issue from a remaining plurality of reactors that continue to operate to convert at least the portion of the hydrocarbon stream to aromatic hydrocarbons while the at least one reactor deemed to have the operational issue is isolated from the plurality of remaining reactors, addressing the operational issues, returning the at least one reactor to the hydrocarbon stream by connecting the reactor to the remaining plurality of reactors, and resuming operations of the reforming reactor system to convert at least the portion of the hydrocarbon stream to aromatic hydrocarbons.