Method and apparatus for separating wax/water from hydrocarbon o

Details Method and apparatus for separating wax/water from hydrocarbon o Method and apparatus for separating wax/water from hydrocarbon o

1985-04-11

1986-11-11

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204302, 204308, 210748, B03C 500

Patent

active

046221182

ABSTRACT:
In order to separate wax particles and/or water droplets from lubricating oil, free excess electric charge which is net positive or net negative is introduced into the wax/water-laden oil, preferably by charge injection. Wax particle/water droplet agglomeration and particle/droplet size growth within the oil mixture due to the electrophoretic effect arising from the electric charge introduction is allowed to occur. In this way, wax particles or water droplets normally considered to be of insufficient size to be separated effectively by filtration can be removed by filtration if the lube oil is electrically pretreated as described. The filtration, conveniently, can be effected by passing the oil mixture containing the grown wax particles/water droplets through a bed of collector beads of low electrical conductivity or through a settler or, in the case of the wax, through a filter screen.

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