Procedure for converting hydrocarbon feed sources and hydrocarbon flow treatment systems

Abstract

The broad aspect of refining refers to processes and systems for converting hydrocarbon feedstocks containing at least 10 ppmw, 100 ppmw, or 500 ppmw and less than 1000 ppmw, 5000 ppmw, or 10000 ppmw of one or more halides, and at least 20 ppmw, 100 ppmw, or 500 ppmw and less than 1000 ppmw, 5000 ppmw, or 10000 ppmw of organically bonded nitrogen, into hydrocarbon product streams by hydrogenation treatment. With the presence of a catalytic material in the hydrogen treatment process and a quantity of hydrogen, in which this hydroOcachon product contains a quantity of 11% halide and a quantity of ammonia, this process includes the following steps. : a) Separation in the first separation step at the first separation temperature yields a top and bottom product stream, b) Combining the top stream with a quantity of rinse water, and c) Separation in the second separation step combines the top stream and rinse water in a non-polar stream of hydrocarbon product and a polar stream of rinse water containing ammonium halide, differing in that the second separation temperature is higher than the precipitation temperature of ammonium halide present in the mixed product stream. This has the related advantage of removing chloride and other halide from the bottom stream from the first separation step and into the non-polar stream of the second separation step, while maintaining the temperature at which ammonia and halide are gases until the available water has collected the ammonia halide in solution, and thus avoiding the precipitation of solid ammonia halide on the inner surface of the treatment equipment, by keeping it in the gas phase or dissolved in liquid water. Furthermore, by separating the hydrocarbons before adding the rinse water, the amount of hydrocarbons involved in the rinse stream is reduced, and therefore the amount of water needed for this rinsing process is also reduced.