Patent ID: 7572365
Filing Date: 2009-08-11
Classification: C10G

Abstract:
1. A method of upgrading a heavy hydrocarbon feedstock, comprising: (i) treating the heavy hydrocarbon feedstock with a calcium compound, (ii) introducing said treated feedstock to an upflow reactor. (iii) rapid thermal processing of the treated feedstock in the presence of the calcium compound, wherein the rapid thermal processing comprises allowing the treated feedstock, in the presence of the calcium compound, to interact with a particulate heat carrier in the upflow reactor run at a temperature in the range from 450° C. to 600° C. for less than 5 seconds, to produce a product stream, and wherein the ratio of the particulate heat carrier to the heavy hydrocarbon feedstock is from 10:1 to 200:1, and (iv) regenerating the particulate heat carrier in a reheater to form a regenerated particulate heat carrier, in the presence of the calcium compound, and (v) recycling the regenerated particulate heat carrier to the upflow reactor, wherein: a) the particulate heat carrier is different from the calcium compound, and b) the amount of the calcium compound added to the heavy hydrocarbon feedstock is from about 0.2 to about 5 fold the stoichiometric amount of sulfur in said feedstock.