1420058-A1 is referenced by 23 patents and cites 9 patents.

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. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.; This invention particularly relates to reducing sulfur emissions during the combustion of byproduct coke (or coke and gas), to reducing the total acid number (TAN) of the liquid product, and to reducing the hydrogen sulfide content of one, or more than one component of the product stream by carrying out the pyrolysis and/or the regeneration of the heat carrier in the presence of a calcium compound.; 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 in the presence of the calcium compound, separating the vapors of the product stream from the particulate heat carrier and liquid and byproduct solid matter, regenerating the particulate heat carrier in the presence of the calcium compound, and collecting a gaseous and liquid product from the product stream.

Title
Rapid thermal processing of heavy hydrocarbon feedstocks in the presence of calcium compounds
Application Number
EP20030256393 20031010
Publication Number
1420058 (A1)
Application Date
October 10, 2003
Publication Date
May 19, 2004
Inventor
Kriz Jerry F
CA
Clarke Doug
CA
Freel Barry
CA
Assignee
Ensyn Petroleum Internat
US
IPC
C10G 55/06
C10G 55/04
C10G 25/09
C10G 09/32
C10G 01/00
C10G 09/00
C10G 70/00
C10G 51/00
C10G 09/00
C10G 70/00
C10G 51/02
C10G 09/28
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