You be the judge:

Purolite PD206 Ion Exchange Resin states:

If you have 15GPM system, then you will need 2,220lbs of Resin.

So 15GPM = 2,200 lbs from this equation you can determine how many pounds of resin you would need in a system per the recommendation of the resin manufacturer.

Let’s assume you have a 5GPM system:

5GPM/15GPM = .333 (33%)

.333 (33%) * 2,200lbs = 733.33lbs

Now 0.5GPM (1/2 Gallon per Minute)

0.5GPM/15GPM = .03333 (3.3%)

.03333 * 2,200lbs = 73.3lbs

Now what if the system only holds 7lbs?

7lbs/2200lbs = 0.00318 (0.318%)

0.00318 * 15GPM = 0.0477 GPM

This system would only be sized for 3/64^th of a gallon a minute.  That would take 21 minutes to do 1 gallon (1Gallon/.0477GPM = 21Minutes)!!!

 The reason why the Resin Manufacture’s give this equation is to make sure the biodiesel has enough surface contact with the resin for a proper washing.  Sure you can run biodiesel though a system as fast as you want but it WILL NOT wash properly unless you have the correct flow rate and amount of resin in your tower.

Designed with you in Mind. Contact Us