We want to clean New Engine Oil by electrostatic filtration system to bring it to NAS 5 or NAS 6, can it be done or the detergents and dispersants present in the oil will interfere this type of electrostatic cleaning.

Can this result be achieved with an absorbant cellulose type of depth filter?

If yes, i.e. NAS 6 can be achieved, then can it be checked with Laser Particle Counter or here also the additives will interefere and give false results? Assume that there is no moisture in the cleaned oil.

No one has taken interest to answer the questions and doubts raised by me, please give your opinion, i urgently require this information.

Prabhakar,

I have not had any experience with electrostatic filtration system but I came across an interesting article called R&D on Maintenance Free Lubrication System for Petroleum TES which goes through electrostatic separator and it's effectiveness on used diesel engine oils, particularly soot particles. It goes onto the differenct detergent chemistries and what effect it has on the separator. There may be some information of use to you. There is no reference to the lazer particle counter. For additive interference on ISO codes, there is a good article in CAT publication SEBF 1020 April 2006 which explains it in some detail.

NAS value of oil depoends on the viscoity,Flowrate and the Detlta P across teh filters.

NAS5 can be achieved with depth filters with proper selection and product mix of both nominal amd absolute rated filters.

Electrostatic filters will nopt be equivalent effective as compare to combo of depth graded density filters nad absolute surfce filters


Kindly reply if you require an commercial quote or any supopoort werein we will provide a optimum and economically feasible solution

Thanks & Regards

KALPESH

quote:

Originally posted by Prabhakar Agrawal:
We want to clean New Engine Oil by electrostatic filtration system to bring it to NAS 5 or NAS 6, can it be done or the detergents and dispersants present in the oil will interfere this type of electrostatic cleaning.

Can this result be achieved with an absorbant cellulose type of depth filter?

If yes, i.e. NAS 6 can be achieved, then can it be checked with Laser Particle Counter or here also the additives will interefere and give false results? Assume that there is no moisture in the cleaned oil.

take a look there:

http://filtroil.com/pdfs/ChartOilContaminationLevels.pdf

Dear Prabhakar,
Contamination in new oil is typically contamination from shipping and packaging. Since electrostatic filtration is slow and most of the debris found in new oil is larger than one micron the cellulose depth filter should work fine. Please be carefull, if there is water in the oil this type of filter will clog quickly.

Good Luck