초록 ▼

A heavy hydrocarbon is rendered pipelineable by hydroconverting the heavy hydrocarbon under conditions sufficient to obtain a product oil of lowered viscosity and an API gravity suitable for pipelining and thereafter adding a diluent modified hydrocarbon to the product oil in an amount sufficient to

A heavy hydrocarbon is rendered pipelineable by hydroconverting the heavy hydrocarbon under conditions sufficient to obtain a product oil of lowered viscosity and an API gravity suitable for pipelining and thereafter adding a diluent modified hydrocarbon to the product oil in an amount sufficient to stabilize the product oil against asphaltene phase separation and when phase separated asphaltene is present to dissolve the phase separated asphaltenes.

대표청구항 ▼

1. A method for rendering a heavy hydrocarbon pipelineable which comprises:subjecting a heavy hydrocarbon to a mild-hydroconversion process under conditions and for a time sufficient to provide a product oil having a viscosity in the range of 30 to 60 cSt at 40.degree. C. and an API gravity at 15.de

1. A method for rendering a heavy hydrocarbon pipelineable which comprises:subjecting a heavy hydrocarbon to a mild-hydroconversion process under conditions and for a time sufficient to provide a product oil having a viscosity in the range of 30 to 60 cSt at 40.degree. C. and an API gravity at 15.degree. C. in the range of 17.degree. to 21.degree.; adding a diluent modified heavy hydrocarbon (DMH) to the product oil in an amount sufficient to stabilize the product oil against asphaltene phase separation and when phase separated asphaltene is present, to dissolve the phase separated asphaltene wherein the amount of diluent used to modify the heavy hydrocarbon is an amount sufficient to provide a DMH with a viscosity at 40.degree. C. in the range of about 30 to 60 cSt and an API gravity of 15.degree. C. of 19.degree. to 21.degree..