Process for endothermic conversion of hydrocarbons, its uses and installation for implementation of this process

Abstract From the Canadian patent

The invention concerns a process for converting hydrocarbons using at least one globally endothermic chemical reaction in which a hydrocarbon feed successively traverses at least two reaction zones each containing at least one solid catalyst and comprising between said reaction zones an intermediate reheating step in a non catalytic zone, for reheating the stream (ST) from the first of the two reaction zones prior to its introduction into said second reaction zone and in which said reheating is carried out in a heat exchanger with heat transfer essentially by convection using a thermal fluid TF which is constituted by superheated steam as a sensible heat medium with a temperature over 400°C …