A system and method for preparing and conditioning a heavy oil feedstock for hydroprocessing in a hydroprocessing system includes forming metal sulfide catalyst particles in situ within the heavy oil feedstock. The metal sulfide catalyst particles are formed in situ by (1) premixing a catalyst precursor with a hydrocarbon diluent to form a diluted precursor mixture, (2) mixing the diluted precursor mixture with the heavy oil feedstock to form a conditioned feedstock, and (3) heating the conditioned feedstock to decompose the catalyst precursor and cause or allow metal from the precursor to react with sulfur in the heavy oil feedstock to form metal sulfide catalyst particles in situ in the heavy oil feedstock. The in situ formed metal sulfide catalyst particles catalyze beneficial upgrading reactions between the heavy oil feedstock and hydrogen and eliminates or reduces formation of coke precursors and sediment.

A process for separating water from pyrolysis gasoline obtained from a steam cracking step uses a coalescer for the water separation. And a device comprises a coalescer for water separation from pyrolysis gasoline.

The present invention relates to a method for preparing a supported metal catalyst for the selective hydrogenation of unsaturated hydrocarbons, characterized in that it comprises the following steps: a) electroplating a layer of nickel on a metallic support, and then b) electroplating a top layer of platinum and/or palladium. The present invention also relates to the supported metal catalyst obtained by this process, and the use thereof in hydrogenation reactions of unsaturated hydrocarbons, in particular for the selective hydrogenation of light olefins.

The present invention relates to a method for preparing a supported metal catalyst for the selective hydrogenation of unsaturated hydrocarbons, characterized in that it comprises the following steps: a) electroplating a layer of nickel on a metallic support, and then b) electroplating a top layer of platinum and/or palladium. The present invention also relates to the supported metal catalyst obtained by this process, and the use thereof in hydrogenation reactions of unsaturated hydrocarbons, in particular for the selective hydrogenation of light olefins.

A process and a system for conversion of a hydrocarbonaceous feed comprising at least 10 ppmw and less than 10000 ppmw of one or more halides, and at least 20 ppmw and less than 10000 ppmw organically bound nitrogen, to a hydrocarbon product stream by hydrotreatment, in the presence of a material catalytically active in hydrotreatment and an amount of hydrogen, wherein said hydrocarbon product stream comprises an amount of ionic halides and an amount of ammonia, said process including: a) separating in a first separation step at a first separation temperature the mixed product stream to provide an overhead stream and a bottoms stream, b) combining the overhead stream with an amount of wash water and c) separating in a second separation step the combined overhead stream and wash water in a non-polar stream of hydrocarbon product and a polar stream of wash water comprising ammonium halides.