Flash processing of asphaltic residual oil
OwnerDonald Prentice Satchell, JR.inventor
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Abstract
A method to upgrade virgin and partially hydrogenated asphaltic residual oils by utilizing hot, high velocity combustion gas jets to rapidly atomize and heat the residual oil, maintaining the reactant temperature required to achieve the desired residual oil conversion with the minimum practical residence time, rapidly separating vapor and liquid reactants, and rapidly cooling the vapor and liquid products. The minimum required temperature and practical residence time are used for the production of deasphalted oil and asphaltene products with minimum degradation due to thermal cracking. The maximum conversion of residual oil may be substantially increased by combining a portion of the heavy oil product with the residual oil feed and partially hydrogenating this mixture.
Claims27
A method for upgrading asphaltic residual oil comprising:
- a) producing a combustion gas jet by expansion of a combustion gas through a convergent-divergent nozzle
- b) contacting said asphaltic residual oil with said combustion gas jet;
- c) separating a vapor phase and a liquid phase formed by said contacting;
- and
- d) cooling said vapor phase and said liquid phase products to form light and heavy oil products.
Dependencies are inferred from the claim text.