Disposal of disulfide oil compounds and derivatives in delayed coking process
AssigneeSaudi Arabian Oil Company
InventorsOmer Refa Koseoglu, Robert Peter Hodgkins
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Abstract
A heavy hydrocarbon oil is mixed with one or more disulfide oil compounds and/or one or more oxidized disulfide oil compounds and, optionally, a homogeneous catalyst includes dissolved hydrogen, and the mixture is subjected to a delayed coking process to produce a liquid coking unit product stream for recovery and further processing, with the delayed coking being completed in a reduced residence time as compared to the delayed coking of the heavy hydrocarbon oil without the DSO and/or ODSO compounds.
Claims11
A process for the delayed coking of a heavy hydrocarbon oil feed, the process comprising:
- a. introducing and mixing the heavy oil hydrocarbon teed and one or more disulfide oil compounds, or oxidized disulfide oil compounds, or disulfide oil and oxidized disulfide oil compounds in a mixing zone and recovering a blended heavy oil mixture;
- b. heating the blended heavy oil mixture in a coking unit furnace to a delayed coking temperature;
- c. passing the heated blended heavy oil mixture to at least one coking drum of a delayed coking unit to produce a delayed coking unit product stream and depositing coke on the interior of the drum;
- and
- d. recovering the delayed coking unit liquid and vapor product stream for further downstream processing, wherein the coke formation in the coking drum is enhanced by promoting the formation of coke more rapidly than would occur in the coking of the heavy hydrocarbon oil feed in the absence of the DSO or ODSO.
A method of enhancing the formation of coke in the drum of a delayed coking unit during the delayed coking of a heavy hydrocarbon oil feed, the method comprising:
- a. introducing and mixing the heavy hydrocarbon oil feed and one or more disulfide oil compounds, or oxidized disulfide oil compounds, or disulfide oil and oxidized disulfide oil compounds in a mixing zone and recovering a blended heavy oil mixture;
- b. heating the blended heavy oil mixture in a coking unit furnace to a delayed coking temperature;
- and
- c. passing the heated blended heavy oil mixture to at least one coking drum of a delayed coking unit to produce a delayed coking unit product stream and depositing coke on the interior of the drum, wherein the coke is formed more rapidly than would occur in the coking of the heavy hydrocarbon oil feed in the absence of the DSO and/or ODSO compounds.
Dependencies are inferred from the claim text.