Methods and systems for producing reduced resid and bottomless products from heavy hydrocarbon feedstocks

摘要

The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. The method comprises introducing a particulate heat carrier into an up-flow reactor, introducing the feedstock at a location above the entry of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier for a short time, separating the vapors of the product stream from the particulate heat carrier and liquid and byproduct solid matter, collecting a gaseous and liquid product mixture comprising a mixture of a light fraction and a heavy fraction from the product stream, and using a vacuum tower to separate the light fraction as a substantially bottomless product and the heavy fraction from the product mixture

主权项

1. A method of producing an upgraded product from a heavy hydrocarbon feedstock, comprising:
a) introducing a heavy hydrocarbon feedstock into a fractionation column that separates a volatile component of the feedstock from a liquid mixture derived from the feedstock, the liquid mixture comprising a light component and a heavy component; b) upgrading the heavy component by a method comprising:
i) providing a particulate heat carrier into an upflow reactor;ii) introducing the heavy component into the upflow reactor at least one location above that of the particulate heat carrier so that a loading ratio of the particulate heat carrier to the heavy component 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., andiii) allowing the heavy component to interact with the particulate heat carrier with a residence time of less than about 20 seconds, to produce a product mixture comprising a product stream and the particulate heat carrier; c) separating the product stream from the particulate heat carrier; d) obtaining a gaseous product and a liquid product mixture from the product stream, the liquid product mixture comprising a light fraction and a heavy fraction; e) combining the light fraction with the light component to form an upgraded bottomless product.