Dewaxing waxy oil by dilution chilling employing static mixing m

Details Dewaxing waxy oil by dilution chilling employing static mixing m Dewaxing waxy oil by dilution chilling employing static mixing m

1978-11-24

1985-04-30

Davis, Curtis R.

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

C10G 7306

Patent

active

045142807

ABSTRACT:
An improved process for the solvent dewaxing of petroleum oil stocks. Wax-containing oil is chilled in an elongated chilling zone by introducing cold dewaxing solvent into said zone, at a plurality of points along same, said chilling zone containing or having associated with it a plurality of static means for mixing the solvent and wax-containing oil under conditions of plug flow radial mixing, thereby avoiding shock chilling without the need for the intense agitation and/or dynamic agitators normally required for such processes.

REFERENCES:
patent: 2287966 (1942-06-01), Brandt
patent: 2612465 (1952-09-01), Kiersted et al.
patent: 3286992 (1966-11-01), Armeniades et al.
patent: 3458431 (1969-07-01), Nixon
patent: 3642609 (1972-02-01), Mayer et al.
patent: 3850740 (1974-11-01), Gudelis et al.
patent: 4088565 (1978-05-01), Watts et al.
Chen et al., "Chemical Engineering", Mar. 19, 1973, pp. 105 to 111.

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