Process for catalytic hydrogenation of hydrogenatable compounds in a hydrocarbon feedstock, and hydrogenated hydrocarbon products

摘要

Hydrogenatable compounds, particularly olefins and aromatic compounds, in a hydrocarbon feedstock boiling above 200°F (93.3°C) are hydrogenated at a temperature in the range of from 400°F-720°F (202.1 to 382°C) using a zeolite-containing catalyst that has been treated with a hydrocarbon stream relatively high (more than 100 ppm N) in organic nitrogen compounds to suppress the cracking activity of the catalyst. The catalyst comprises (1) an amorphous base component, (2) a crystalline aluminosilicate component preferably comprising from 5-30 wt. % of the total catalyst and having a silica/alumina mole ratio of at least 2.5 and an alkali metal content of less than about 2.0 wt.% and (3) a transition metal hydrogenation component. The process is particularly useful in the manufacture of jet fuels and technical white oils and white oil bases with a minimum conversion of feed (less than 20%) to substantially lower boiling products.