초록 ▼

A process for reducing the pour point of sulfur containing gas oil fractions to produce fractions, including diesel oil of reduced pour point involving sequential hydrotreating and dewaxing of the gas oil feedstock. The hydrotreating step is carried out over a conventional hydrodesulfurization catal

A process for reducing the pour point of sulfur containing gas oil fractions to produce fractions, including diesel oil of reduced pour point involving sequential hydrotreating and dewaxing of the gas oil feedstock. The hydrotreating step is carried out over a conventional hydrodesulfurization catalyst to remove sulfur. The dewaxing step is carried out over silicalite at mild dewaxing conditions under which the C3 and lower gas make is no greater than 2 wt. % based upon the gas oil feed.

대표청구항 ▼

A process for catalytic dewaxing a hydrocarbon feed having an initial boiling point of less than 500°F. and a final boiling point of less than 900°F., comprising passing the hydrocarbon feed through a reaction zone containing a crystalline silica polymorph silicalite catalyst at mild dewaxing condit

A process for catalytic dewaxing a hydrocarbon feed having an initial boiling point of less than 500°F. and a final boiling point of less than 900°F., comprising passing the hydrocarbon feed through a reaction zone containing a crystalline silica polymorph silicalite catalyst at mild dewaxing conditions under which the C3 and lower hydrocarbon gas make from said reaction zone is not greater than 2 wt. % based on the feed.