초록 ▼

This invention relates to a process for continuously converting a heavy oil into an asphaltene-metal-free oil by hydrotreating said heavy oil to crack asphaltenes selectively and remove heavy metals such as vanadium and nickel from said heavy oil simultaneously (hereinafter briefly referred to as “r

This invention relates to a process for continuously converting a heavy oil into an asphaltene-metal-free oil by hydrotreating said heavy oil to crack asphaltenes selectively and remove heavy metals such as vanadium and nickel from said heavy oil simultaneously (hereinafter briefly referred to as “removal of metals”), separating the liquid products into a light fraction of an asphaltene-free and metal-free oil and a heavy fraction of an asphaltene and heavy metal-containing oil (hereinafter referred to as a “heavy fraction”), recovering said light fraction as a product, and recycling said heavy fraction to said hydrotreating step.

대표청구항 ▼

In a process for treating heavy hydrocarbon oil which contains asphaltene and heavy metals to continuously convert the oil into a substantially asphaltene-free and heavy metal-free oil comprising the steps of: (a) contacting said reactor feed oil with hydrogen in the presence of a catalyst; (b) sepa

In a process for treating heavy hydrocarbon oil which contains asphaltene and heavy metals to continuously convert the oil into a substantially asphaltene-free and heavy metal-free oil comprising the steps of: (a) contacting said reactor feed oil with hydrogen in the presence of a catalyst; (b) separating said withdrawn hydrotreated product into a hydrogen-rich gas and a liquid product; (c) separating the liquid product of step (b) into a substantially asphaltene-free and heavy metal-free light fraction and an asphaltene-containing and heavy metal-containing heavy fraction; and (d) recycling said heavy fraction of step (c) to step (a), the improvement in step (a) comprising maintaining the reactor feed oil so as to contain at least 5 weight % of asphaltene and at least 80 ppm of vanadium, contacting said reactor feed oil with the catalyst compound of one or more catalytic metals selected from the groups Va, VIa and VIII in the Periodic Table, supported on a carrier containing magnesium silicate as the major component, and withdrawing the hydrotreated product without entraining the catalyst therein.