Catalytic slurry process for black oil conversion

In a process for the conversion of an asphaltene-containing hydrocarbonaceous charge stock which comprises the steps of:

• (a) forming a reactive slurry of said charge stock, hydrogen and a finely divided catalyst containing at least one metal component from the metals of Groups V-B, VI-B and VIII of the Periodic Table;
• (b) reacting said slurry at hydrocarbon conversion conditions including a pressure above about 100 psig and a temperature above about 400.degree. F.;
• and,
• (c) recovering a hydrocarbonaceous product;
• the improved method of reducing the formation of coke and other undesirable deposits in the process, which comprises effecting said reaction of the slurry in admixture with from about 0.0001% to about 1% by weight, based on the hydrocarbonaceous charge stock, of a solids dispersant comprising an oil-soluble HCl salt of the condensation product, formed at a temperature of from about 20.degree. C. to about 150.degree. C., of equimolar amounts of an epihalohydrin compound and an alkyl amine having from about 12 to about 40 carbon atoms per molecule, from about 1% to about 20% of the amino nitrogen in said condensation product being neutralized with HC1.