Deasphalting tar using stripping tower

Details Deasphalting tar using stripping tower Deasphalting tar using stripping tower

2009-06-10

2011-11-15

Bhat, Nina (Department: 1771)

Mineral oils: apparatus

Solvent extraction

C422S609000, C196S098000

Reexamination Certificate

active

08057640

ABSTRACT:
Tar is contacted with stripping agent, such as steam or tail gas, in a stripping tower. A product comprising deasphalted tar is recovered as overheads and a product comprising heavy tar is recovered as bottoms from the stripping tower.

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