Upgrading Slurry Oil Using Chromatographic Reactor Systems
First Claim
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1. A method of producing needle coke products, comprising:
- passing a slurry oil mixture through a chromatographic based assembly to produce upgraded slurry oil, wherein nitrogen-containing compounds within the slurry oil mixture are adsorbed onto packing material of the chromatographic based assembly without affecting aromatic content of the slurry oil mixture; and
introducing the upgraded slurry oil into a coking system to make needle coke.
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Abstract
Methods and apparatus relate to reducing content of nitrogen-containing compounds within slurry oil using a chromatographic based assembly, which may not affect aromatic content, prior to feeding the slurry oil into a coking system. The slurry oil passes through the chromatographic based assembly to upgrade the slurry oil and make the slurry oil suitable for feedstock in making needle coke. Further, a hydrotreater utilized in combination with the chromatographic based assembly may provide additional upgrading of the slurry oil.
16 Citations
20 Claims
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1. A method of producing needle coke products, comprising:
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passing a slurry oil mixture through a chromatographic based assembly to produce upgraded slurry oil, wherein nitrogen-containing compounds within the slurry oil mixture are adsorbed onto packing material of the chromatographic based assembly without affecting aromatic content of the slurry oil mixture; and introducing the upgraded slurry oil into a coking system to make needle coke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for producing needle coke products, comprising:
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a supply for a slurry oil mixture; a chromatographic based assembly having an inlet to receive the slurry oil mixture and an outlet, wherein the chromatographic based assembly includes packing material that is an adsorbent for nitrogen-containing compounds within the slurry oil mixture; and a coking system configured to make needle coke, wherein a feedstock supply for the coking system is coupled to the outlet of the chromatographic based assembly such that the packing material of the chromatographic based assembly is disposed in a flow path of the slurry oil mixture between the supply for the slurry oil mixture and the coking system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of producing needle coke products, comprising:
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removing nitrogen-containing compounds within a slurry oil by chromatography; removing sulfur-containing compounds within the slurry oil by hydro-desulfurization; and coking the slurry oil, which is output from the chromatography and the hydro-desulfurization, to make needle coke solids. - View Dependent Claims (18, 19, 20)
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Specification