ASCOTSM Process
Technical Papers
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Refining > Residue Upgrading > ASCOTSM Asphalt Coking Technology
ASCOTSM Asphalt Coking Technology
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ASCOTSM, licensed jointly with UOP, is a
combination of solvent deasphalting followed by delayed coking, in which the asphalt
produced is used as feed to the delayed coker.
The combination offers a unique use for asphalt and provides enhanced overall yields.
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Key benefits:
| Solvent contained in asphalt and deasphalted oil is condensed in fractionator overhead condensers |
| Solvent recovered may be used as lean oil for C3/C4 recovery in the absorber, eliminating requirement for lean oil recirculation from naphtha stabilizer |
| Slow asphalt partial pressure results in low coke and high liquid yields |
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