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US 9,803,146 B2Granted
Hydrocarbon residue upgradation process
AssigneeHindustan Petroleum Corporation Limited
InventorsPramod Kumar, Madan K. Kumar, Venkata Chalapathi Rao Peddy, Venkateswarlu Choudary Nettem, Sri Ganesh Gandham
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Abstract
The present subject matter provides a process for hydrocarbon residue upgradation. The combination of the hydrocarbon residue along with aromatic rich hydrocarbons, catalysts and surfactants allow the operation of visbreaking unit at higher temperature while producing a stable bottom product.
Claims24
A process for hydrocarbon residue upgradation, the process comprising:
- (a) mixing hydrocarbon residue with aromatic rich hydrocarbon to obtain a first mixture;
- (b) contacting the first mixture with a combination of a oil soluble catalyst and a surfactant to obtain a second mixture;
- (c) heating the second mixture in a furnace at a temperature range of 400-500° C. for a residence time of 1-5 min;
- (d) treating effluent from the furnace with aromatic rich hydrocarbon and the surfactant to form a third mixture;
- (e) adding an aqueous solution of a water soluble catalyst to the third mixture to obtain a fourth mixture;
- (f) subjecting the fourth mixture in a soaking vessel to a pressure in the range of 4-30 kg/cm′ at a temperature in the range of 400-480° C. and a residence time in the range of 10-50 min;
- and
- (g) passing effluent from the soaking vessel to fractionating column followed by visbreaking vapour recovery section to obtain gas, naphtha, gas oil, visbroken tar, and sour water.
5 more elements
A process for hydrocarbon residue upgradation, the process comprising:
- (a) mixing vacuum tower bottom with bottom product from FCC unit to obtain a first mixture;
- (b) contacting the first mixture with a combination of molybdenum disulfide and rhamnolipid to obtain a second mixture;
- (c) heating the second mixture in a furnace at a temperature range of 440-460° C. for a residence time of 2-4 min;
- (d) treating effluent from the furnace with bottom product from FCC unit and dodecyl benzene sulphonic acid to form a third mixture;
- (e) adding an aqueous solution of magnesium sulphate to the third mixture to obtain a fourth mixture;
- (f) subjecting the fourth mixture in a soaking vessel to a pressure in the range of 10-15 kg/cm′ at a temperature in the range of 430-440° C. and a residence time in the range of 20-25 min;
- and
- (g) passing effluent from the soaking vessel to fractionating column followed by visbreaking recovery section to obtain gas, naphtha, gas oil, Visbroken tar, and sour water.
5 more elements
Dependencies are inferred from the claim text.