a process for the simultaneous hydroconversion of a first feedstock comprising unsaturated , halogenated organic compounds and a second feedstock comprising saturated , halogenated organic compounds which process comprises : contacting the first feedstock comprising unsaturated , halogenated organic compounds with a first dried hydrogen - rich gas stream in a first hydrogenation reaction zone operated at hydrogenation conditions selected to minimize the polymerization of unsaturated organic compounds and to produce a first hydrogenated stream comprising hydrocarbonaceous compounds ; reacting at least a portion of the first hydrogenated stream comprising hydrocarbonaceous compounds and the second feedstock comprising saturated , halogenated organic compounds with hydrogen in a second hydrogenation reaction zone operated at hydrogenation conditions selected to produce a second hydrogenated stream comprising hydrocarbonaceous compounds and to generate at least one water - soluble hydrogen halide compound ; contacting the the second hydrogenated stream with a halide - lean absorber solution in an absorption zone ; withdrawing a halide - rich absorber solution containing at least a portion of the water - soluble hydrogen halide compound from the absorption zone ; withdrawing a stream comprising hydrogenated hydrocarbonaceous compounds and a hydrogen - rich gas from the absorption zone ; introducing the stream recovered in step into a separation zone to produce a hydrogen - rich gas stream comprising water vapor and a third hydrogenated stream comprising hydrocarbonaceous compounds ; removing at least a portion of the water vapor from the hydrogen - rich gas stream comprising water vapor in a drying zone to produce a second dried hydrogen - rich gas stream ; and recycling at least a portion of the second dried hydrogen - rich gas stream to step as the first dried hydrogen - rich gas stream .