Means for and methods of removing heavy bottoms from an effluent

Details Means for and methods of removing heavy bottoms from an effluent Means for and methods of removing heavy bottoms from an effluent

1992-01-23

1993-11-02

Myers, Helane

Mineral oils: processes and products

Fractionation

Deasphalting

208 86, 208 87, 208 89, 208 92, 208 96, 208221, 208222, 208313, 208339, 208314, 208315, 208317, E10G 5304, E10G 5502

Patent

active

052581179

ABSTRACT:
A process for improving the performance of heavy oil refining units in a resid hydrotreating unit equipped for resid hydrotreating. The partially refined resid stream issuing from a train of ebullated bed reactor is first separated into high, medium, and low temperature components. The high temperature component is sent through a flash drum and then fractionated by solvent deasphalting in order to provide oil, resin, and asphaltene fractions. Thus, the asphaltene is eliminated before it can foul downstream equipment. This treatment of the heavy oil product has several benefits as compared to treating the vacuum tower bottoms. Among other things, one of these benefits is to debottleneck the resid hydrotreating unit, especially at the atmospheric tower.

REFERENCES:
patent: 4686027 (1987-08-01), Bonilla et al.
patent: 4940529 (1990-07-01), Beaton et al.
patent: 5013427 (1991-05-01), Mosby et al.
patent: 5089114 (1992-02-01), Tovar

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