Solvent deasphalting apparatus

Details Solvent deasphalting apparatus Solvent deasphalting apparatus

1976-11-05

1978-05-09

Richman, Barry S.

Mineral oils: apparatus

Solvent extraction

232705T, 208309, B01D 1104, C10G 2114, C10G 4312

Patent

active

040885402

ABSTRACT:
An apparatus and process for the solvent deasphalting of petroleum stocks. An asphaltene containing feedstock enters an intermediate point of a vertical trayed column and passes downward countercurrent to a rising solvent stream. The resulting extract stream rises through more trays and then through two adjacent U-tube heat exchange bundles stabbed into the column from opposite sides. Asphaltene containing substances are precipitated by this heating. The extract is then admixed by a horizontal shroud and a pair of horizontal baffles above the heat exchangers and retained in a quiescent settling zone before being removed from the column.

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