초록

A process and system for vaporizing heavy oil prior to thermal cracking in a TRC system having low residence time on the order of 0.05 to 2 seconds, and at a temperature between 1300°and 2500°F.

대표청구항 ▼

In a TRC process wherein the temperature in the cracking zone is between 1300°and 2500°F. and wherein hydrosulfurized residual oil along with the entrained inert solids and the diluent gas are passed through a cracking zone for a residence time of 0.05 to 2 seconds, the improvement in the process fo

In a TRC process wherein the temperature in the cracking zone is between 1300°and 2500°F. and wherein hydrosulfurized residual oil along with the entrained inert solids and the diluent gas are passed through a cracking zone for a residence time of 0.05 to 2 seconds, the improvement in the process for preheating the heavy oil hydrocarbon feedstock comprising the steps of: a. heating the liquid heavy oil hydrocarbon feedstock; b. initially flashing the heated liquid heavy oil hydrocarbon feedstock with steam; c. separating the vapor and liquid phases of the flashed liquid heavy oil hydrocarbon feedstock-steam mixture; d. superheating the vapor phase of the flashed liquid heavy oil hydrocarbon feedstock-steam mixture; and e. flashing the superheated vapor and the liquid phase of the originally flashed liquid heavy oil hydrocarbon feedstock-steam mixture.