초록 ▼

A method of upgrading residual oil includes cracking the residual oil at a severity which is between visbreaking and coking to produce a light cracked product and a heavy bottom product. The heavy bottom product is mixed with diluents and additives which improves the flow characteristics to produce

A method of upgrading residual oil includes cracking the residual oil at a severity which is between visbreaking and coking to produce a light cracked product and a heavy bottom product. The heavy bottom product is mixed with diluents and additives which improves the flow characteristics to produce a pumpable fuel.

대표청구항 ▼

The method of upgrading residual oil boiling in the range of 1050°F.+comprising: thermally cracking said residual oil at a temperature of 650°-900°F., a pressure of 0-100 psig, and a residence time of 0.1 to 5 hours at the highest severity in the range between about 1,000-18,000 seconds, as expresse

The method of upgrading residual oil boiling in the range of 1050°F.+comprising: thermally cracking said residual oil at a temperature of 650°-900°F., a pressure of 0-100 psig, and a residence time of 0.1 to 5 hours at the highest severity in the range between about 1,000-18,000 seconds, as expressed in equivalent reaction time at 800°F., sufficient to convert at least about 50 wt. % of the residual oil to light products, substantially without the formation of solid coke; recovering separate fractions of light product and emulsifiable heavy bottom product which has a fusion temperature below about 150°C. and a quinoline-insoluble content between about 10 wt. % and 30 wt. % and wherein the highest severity is determined by a functional relationship between the asphaltene content of the residual oil feedstock and the heavy bottom product yield and quinoline-insoluble content in accordance with the followinng: [Figure] a value ranging between 6 and 12.