Shell Oil Comapny

Johan J Pek

Hubertus J Schuurmans

Jeremy B Bentham

Robert Paul Cossee

Stephanus Paardekooper

A method of distilling a crude oil and a contaminated liquid stream in an atmospheric distillation column (2) comprising the steps of (a) heating (13, 15) the crude oil at atmospheric pressure and introducing the heated crude oil into the inlet section (10) of the column (2); (b) removing from bottom a residue (19), removing from the top an overhead (20) and removing from the rectification section (7) at least one side stream (26, 28); (c) cooling (13) one of the side streams (28) and introducing the cooled side stream (29) into the rectification section (7) and partly condensing (21) the overhead (20) and introducing the condensed fraction (24) into the upper end of the distillation column (2); (d) supplying the contaminated liquid stream (40) to a membrane unit (3) provided with a suitable membrane (33), and removing a permeate (37) and a retentate (36); and (e) introducing the permeate (37) into the rectification section (7) and adding the retentate (36) to the crude oil (11) upstream of the furnace (1).

Atmospheric distillation of hydrocarbons-containing liquid streams

A vertical distillation column for vacuum distillation having a feed inlet, a gas outlet and a de-entrainment device which comprises a downstream chamber and an upstream chamber separated from each other by an inclined permeable wall comprising coalescence means and flow controlling means restricting fluid flow through the upper part of the coalescence means.

Vertical distillation column with a de-entrainment device

Horizontal gas/liquid separator comprising a vessel having a gas inlet with a gas inlet channel and a gas outlet with a gas outlet channel. The channels are separated from one another by a horizontal gas/liquid separation zone provided with swirl tubes. To obtain a uniform gas/liquid distribution over the swirl tubes, these swirl tubes are provided with primary gas outlet tubes with different cross sectional areas depending on their location relative to the gas outlet.

Horizontal gas/liquid separator

An apparatus for separating gas/liquid mixtures comprising an outer vessel having an inlet and separate gas and liquid outlets. A plurality of gas/liquid separating units are mounted in a horizontal tubesheet disposed in the vessel. Each separating unit has a vertical tubular member that defines an inner and outer space with the lower end of the tubular member communicating with the inlet. A swirl vane is mounted in each of the tubular members for imparting a swirl to the gas/liquid mixture to separate the gas and liquid. A primary gas outlet tube extends into each of the tubular members for removing the gas while the liquid is removed through discharge openings in the tubular members. Secondary gas outlets are positioned outside the tubular members while a demister mat is provided for removing any remaining liquid coming from the primary gas outlet tubes.

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Amsterdam, Netherlands

Johan J Pek