Abstract: The present invention describes a process for the isomerization of a light naphtha with a view to forming high octane number gasolines, said process using a deisopentanizer and a deisohexanizer which are thermally integrated in a manner such as to reduce the consumption of the high temperature utilities employed in the process.

Abstract: The present invention describes a process for the production of high octane number gasoline by isomerization of a light naphtha cut, comprising two separation steps located downstream of the reaction step which can be used to improve the energy efficiency of said process.

Abstract: A process for the isomerization of a feed of hydrocarbon compounds containing C5 and/or C hydrocarbon compounds, comprising: a) supplying an isomerization unit with at least one liquid fraction of the feed of hydrocarbon compounds and isomerizing the feed in the presence of a chlorinated catalyst; b) supplying a stabilization unit containing at least one stabilization column with the effluent obtained from the isomerization unit and separating the effluent; c) providing an absorption unit having one absorption column; d) extracting a liquid flow enriched in chlorinated compounds from the absorption unit which is recycled to the isomerization unit; and e) extracting the liquid flow containing at least one isomerate from the stabilization unit.

Abstract: The present invention describes a process for the isomerization of a light naphtha with a view to forming high octane number gasolines, said process using a deisopentanizer and a deisohexanizer which are thermally integrated in a manner such as to reduce the consumption of the high temperature utilities employed in the process.

Abstract: The present invention describes a process for the production of high octane number gasoline by isomerization of a light naphtha cut, comprising two separation steps located downstream of the reaction step which can be used to improve the energy efficiency of said process.

Abstract: A process for the isomerization of a feed of hydrocarbon compounds containing C5 and/or C6 hydrocarbon compounds, in which process: a) an isomerization unit (1) is supplied with at least one liquid fraction of the feed of hydrocarbon compounds and the isomerization is carried out in the presence of a chlorinated catalyst; b) a stabilization unit (20) containing at least one stabilization column (2) is supplied with the effluent obtained from the isomerization unit (1) and a separation is carried out in the stabilization unit (20); c) an absorption unit (7) contains at least one absorption column (3); d) a liquid flow enriched in chlorinated compounds is extracted from the absorption unit (7) and returned to the isomerization unit (1); e) the liquid flow containing at least one isomerate of the feed of hydrocarbon compounds is extracted from the stabilization unit (20).

Abstract: A device comprising at least one absorber, at least one cold separator from which is extracted a gaseous phase that feeds the absorber, at least one recycling to said cold separator of at least a portion of liquid effluent that is obtained from the absorber and which is mixed with the feedstock, at least one heat exchanger for cooling the mixture prior to the recycling, at least one conduit for recovering a light hydrocarbon-enriched liquid fraction obtained from the cold separator and at least one conduit for evacuating gases from the absorber, said device being useable for the treatment of a hydrogen-rich gas or for the recovery of a hydrocarbon-enriched liquid.

Abstract: The invention relates to a device that comprises at least one absorber, at least one cold separator from which is extracted a gaseous phase that feeds the absorber, at least one recycling to said cold separator of at least a portion of the liquid effluent that is obtained from the absorber and is mixed with the feedstock, at least one means for cooling said recycling, at least one means for recovering a light hydrocarbon-enriched liquid fraction that is obtained from said cold separator and at least one means for evacuating gases from the absorber. The invention also relates to a process for a hydrogen-rich gas or a process for recovery of a hydrocarbon-enriched liquid that uses said device.