Low pressure hydrocyclone separator

Details Low pressure hydrocyclone separator Low pressure hydrocyclone separator

1988-06-29

1989-07-04

Sever, Frank

Liquid purification or separation

Processes

Separating

210805, 210808, 210144, 2105121, B01D 17038

Patent

active

048448176

ABSTRACT:
A system is provided for the separation of oil from oily water, particularly where the oily water is available only at relatively low pressures insufficient to drive a hydrocyclone separator. Particular combinations of pumps and hydrocyclones can be effective in these low pressure situations where the pressure boost required is not substantially greater than a differential pressure at which the pump begins to substantially degrade the volumetric mean size of droplets of oil in the oily water passing therethrough. This is achieved by operating the pump at relatively near its maximum flow rate capacity to substantially reduce on a percentage basis the effect of fluid slippage within the pump. Improved techniques for analysis of oil droplet size distribution are also disclosed.

REFERENCES:
patent: 2322018 (1943-06-01), Huber
patent: 2726548 (1955-12-01), Van Der List
patent: 2981413 (1961-04-01), Fitch
patent: 3557956 (1971-01-01), Braun et al.
patent: 3638498 (1972-02-01), Nelms
patent: 3661528 (1972-05-01), Falk
patent: 3707869 (1973-01-01), Raynor
patent: 3780567 (1973-12-01), Ovard
patent: 3842678 (1974-10-01), De Baun et al.
patent: 3930414 (1976-01-01), Russell
patent: 4094794 (1978-06-01), Kahmann
patent: 4413533 (1983-11-01), Diesel
patent: 4414112 (1983-11-01), Simpson et al.
patent: 4622132 (1986-11-01), Chupka
Colman et al., "Hydrocyclones For Oil/Water Separation", Paper Presented at International Conference on Hydrocyclones Held Oct 1-3, 1980, at Churchill College, Cambridge, United Kingdom.
Meldrum, "Hydrocyclones: A Solution to Produced Water Treatment", paper OTC 5594 Presented at the Offshore Technology Conference in Houston, Tex., Apr. 27-30, 1987.
Exhibit A-Brochure entitled "Allweiler AG Bottrop Works".
Exhibit B-Brochure entitled "Vortoil.RTM. Hydrocyclone" of Conoco Specialty Products, Inc.

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