Hydrotreating process for the catalytic hydrocarbon feedstock containing silicon

摘要

FIELD: chemistry.;SUBSTANCE: method for catalytic hydrofining hydrocarbon material containing silicon compounds involves a step for contacting the hydrocarbon material in the presence of hydrogen with a first hydrofining catalyst lying in at least two series-connected reactors, at temperature which reaches 410°C at the output, to reduce content of silicon compounds in the hydrocarbon material; cooling the processed material to temperature from 280°C to 350°C; and contacting the cooled hydrocarbon material, coming out of reactors lying upstream to remove silicon compounds, with a second hydrofining catalyst of at least one hydrofining reactor lying downstream, at conditions which are effective to reduce concentration of sulphur compounds and nitrogen compounds.;EFFECT: improved efficiency of catalytic hydrofining.;2 cl, 1 dwg, 1 ex, 2 tbl