Products produced from rapid thermal processing of heavy hydrocarbon feedstocks

摘要

The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.

主权项

1. A method of producing a vacuum gas oil (VGO), comprising
I) upgrading bitumen by a method comprising:
i) providing a particulate heat carrier into an upflow reactor;ii) introducing the bitumen into the upflow reactor at at least one location above that of the particulate heat carrier so that a loading ratio of the particulate heat carrier to the bitumen is from about 10:1 to about 200:1, wherein the upflow reactor is run at a temperature of from about 300° C. to about 700° C.;iii) allowing the bitumen to interact with the heat carrier with a residence time of less than about 5 seconds, to produce a product stream;iv) separating the product stream from the particulate heat carrier;v) regenerating the particulate heat carrier; andvi) collecting a gaseous and liquid product from the product stream, wherein the liquid product exhibits an increased API gravity, a reduced pour point, reduce viscosity and a reduced level of contaminants over that of the feedstock, and II) isolating the VGO from the liquid product, wherein the VGO is characterized as comprising a measured analine point from about 110° F. to about 170° F., wherein the measured analine point is lower than a calculated analine point.