Process for producing needle coke
First Claim
1. A process for producing needle coke comprising the steps of:
- passing a heavy resid feedstock to a resid hydrotreating reaction zone at resid hydrotreating conditions and producing light resid hydrotreated products and a heavy resid hydrotreated residual product;
directing said heavy resid hydrotreated residual product and FCC decanted oil to a solvent extraction process reaction zone at solvent extraction process conditions and producing products comprising a solvent extracted oil and resin stream and a stream comprising asphaltenes; and
conveying at least a portion of said solvent extracted oil and resin stream to a delayed coking process at delayed coking conditions and producing liquid products and needle coke.
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Accused Products
Abstract
A process is provided for producing premium and super premium grade needle coke comprising the steps of passing a heavy resid feedstock to a resid hydrotreating reaction zone at resid hydrotreating conditions and producing light resid hydrotreated products and a heavy resid hydrotreated residual product, directing the heavy resid hydrotreated residual product and FCC decanted oil to a solvent extraction process reaction zone at solvent extraction process conditions and producing products comprising a solvent extracted oil and resin stream and a stream comprising asphaltenes, and conveying at least a portion of the solvent extracted oil and resin stream to a delayed coking process at delayed coking conditions and producing liquid products and premium grade coke.
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Citations
20 Claims
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1. A process for producing needle coke comprising the steps of:
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passing a heavy resid feedstock to a resid hydrotreating reaction zone at resid hydrotreating conditions and producing light resid hydrotreated products and a heavy resid hydrotreated residual product; directing said heavy resid hydrotreated residual product and FCC decanted oil to a solvent extraction process reaction zone at solvent extraction process conditions and producing products comprising a solvent extracted oil and resin stream and a stream comprising asphaltenes; and conveying at least a portion of said solvent extracted oil and resin stream to a delayed coking process at delayed coking conditions and producing liquid products and needle coke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for producing premium grade coke comprising the steps of:
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passing a heavy resid feedstock comprising at least one member selected from the group consisting of high sulfur resid, low sulfur resid, FCC decanted oil, solvent extracted oil and resin, solvent extracted oil, solvent extracted resin, and lubricating oil solvent extraction process extracts to a resid hydrotreating reaction zone at resid hydrotreating conditions and producing light resid hydrotreated products and a heavy resid hydrotreated residual product; directing said heavy resid hydrotreated residual product and FCC decanted oil to a solvent extraction process reaction zone at solvent extraction process conditions and producing products comprising a solvent extracted oil stream, a solvent extracted resin stream, and a stream comprising asphaltenes; and conveying at least a portion of one or both of said solvent extracted oil stream and said solvent extracted resin stream to delayed coker feedstock for directing to a delayed coking process at delayed coking conditions and producing liquid products and premium grade coke; wherein said FCC decanted oil is added to at least one or both of said resid hydrotreating reaction zone and said solvent extraction process zone in a manner so as to produce a premium grade coke having a coefficient of thermal expansion of less than about 5×
10-7 /°
C. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification