I was thinking about upflow too. Sawdust or shavings are likely to float, so reversing flow in the column would be required, if using a purolite type column.

As for the ink, yes the biodiesel turned green due to absorbing the pigment. Its only a try out - naturally if using paper is vaiable we'd use a suitable plain paper.

We work with Schoeder and worked out a deal to sell the EcoPure at market price.
The price is $82.00 for 7.5Kg (16.5lbs)
So about $4.97 per #

www.drywashbiodiesel.com

We sell a tower the we use for Purolite and from our intial talks it will work for the Ecopure as well at a rate of 1.6GPM using 32lbs with an upflow. The material turns solid after use so you need to have a top and or bottom that opens the complete dia of your vessel (ours opens on top and bottom). Let us know if you have any questions. Thanks.
email nathan@biodieselexpertsintl.com for a PDF on the EcoPure.

quote:

Originally posted by DryWashBiodiesel.com:
We work with Schoeder and worked out a deal to sell the EcoPure at market price.
The price is $82.00 for 7.5Kg (16.5lbs)
So about $4.97 per #
www.drywashbiodiesel.com
We sell a tower the we use for Purolite and from our intial talks it will work for the Ecopure as well at a rate of 1.6GPM using 32lbs with an upflow. The material turns solid after use so you need to have a top and or bottom that opens the complete dia of your vessel (ours opens on top and bottom). Let us know if you have any questions. Thanks.
email nathan@biodieselexpertsintl.com for a PDF on the EcoPure.

Thanks,
I will seriously consider this option.

But I do have a few questions:

1) Is Ecopure fundamentally different in content than processed wood shavings?
2) Is the $600 tower (after shipping) fundamentally different than a vertical sewer pipe with fixtures and openings?
3) If Ecopure is not fundamentally different than wood shavings then why is it $16/lb?
4) Given average BD out of an Appleseed processor, how many gallons can be process per tower full?
5) How many $ does it take to fill the tower?
6) Does this material have a shelf life?
7) Is there any published 3rd party data to support performance claims?
8) How does one determine the media has "worn out"?
9) Is there a performance curve such that beyond a certain spot it begins to make bad fuel?

Thanks!

- Chris

could we stop with calling the use of resin drywashing already? it is not a replacement for wet(water)washing! it is merely a polisher that must be preceeded by methanol removal and an extended length of settling.
enough with the marketing already, man!

It's much more than polishing. It removes the impurities that water removes, and better. I dont bother with the demeth.

It is dry wash.

Well I do demeth and settle and then filter but I don't introduce anything wet into the process, especially water, so I must agree that it is dry washing. You could also call it polishing for marketing purposes, but the resin columns work, as do wood shavings in a PVC column.

I just started using a 4" PVC column with the wood shavings today. I am not sure how long it will hold up and I have no idea how well it works with BD before it is demethed. I do know that it cleans up the demethed and settled BD.

Jehu,

I have a 10 gallon reservoir made of PVC mounted to one of the walls of my shop. I pump the BD into the reservoir after it has been run through denim filters. I let the BD gravity feed into the bottom of my 4" PVC column filled with maple wood shavings which pushes it through to the top. It then goes into two downflow 2" PVC columns containing macroporous resin and finally through a whole house water filtration tank (also containing macroporous resin) which is upflow and then into a collection tank. I have 70 mesh screens at the top and bottom of the 4" PVC column and at the bottom of the 2" PVC columns and at the top of the whole house water filtration tank.

I have progressed to this system over the last two weeks. I have no idea if it will work with raw BD. I am not ready to try that yet.

Several companies in Europe have been working on proprietary cellulosic biodiesel purification however most haven't been able to do it all.

After reviewing the material presented on this thread would some one please do a peer check on my calculations:

16.5 lbs of Ecopure ordered from Europe (shipping not included) cost 27.50 British pounds which has a current exchange rate of $1.98 USD/per GBP so this yields $54.51 USD per bucket of Ecopure which comes to ~$3.30 per lb of EcoPure.

The literature says that each Kg will purify 350-700 liters so if we just choose 500 liters as an average this yields ~60 gal of biodiesel purified/lb.

If this is correct, then the cost per gal of biodiesel purified using Ecopure is ~ $0.06 USD.

We sell PD206 for 7.25 per lb and it easily does 100 gallons per lb. this yields ~$0.07 USD

The PD206 can be flushed and/or regenerated for use again with Purolite working to drive the overall cost to a penny per gallon.

The resin itself is non-toxic and is used as an alternatively derived fuel in many boilers.

I don't know, does Ecopure really sound all that much better???

GCG

Oh ya,

So if your at $4.97/lb from The Biodiesel Experts (since they are covering the import cost).

Then the cost per gal of biodiesel purification goes to $4.97/60 gal = 0.08 cents US.

GCG

Jehu & Eurocab,

Is it possible to get some pictures of your setups? I would like to move away from water washing but I don't want to spend several hundred dollars on equipment and resins. Maybe some dimensions on your towers and how much resin is required as well. I'm sure I wouldn't be the only one that would greatly appreciate it.

holeshotkid,

I`ve added a photo of my own home built rig to use the Ecopure, it is easily scaled to suit most requirements, I only make 40lt batches of bio at any one time so this size suits me very well, if you scale up bear in mind that Ecopure requires 3.5lt volume per 1kg of product.

Regards stumpy

Front_view.jpg (31 KB, 186 downloads) Front

Stumpy, thank you. I posted reply in the cellulose thread.

quote:

Posted 05 July 2008 08:59 AM Hide Post
Jehu & Eurocab,

Is it possible to get some pictures of your setups?

I don't have any pics at the moment. I am still in the experimental stage and would hate to show something that I end up changing.


Legal has some pics of his setup which are pretty cool.

Another benefit would be easy disposal of the shavings. It would even provide useful heat as long as you have a fireplace or stove.

-Jim

my set up is the Graham Lamming inverted domestic heating boiler type. Ive no pics at hand but i'll see what i can do

quote:

Another benefit would be easy disposal of the shavings. It would even provide useful heat as long as you have a fireplace or stove.

Exactly, you could use some excess glycerin with the spent wood shavings to form a fire starter log. Nothing goes to waste. The wood shavings are free to anyone able to find a cabinet shop nearby.

After further review there is nothing magical about wood shavings other than they act as a cheap filter. So far my PVC column is holding up and probably will continue to do so.

I think that the resin works by chemically reacting with the impurities in the BD and also with the PVC thus causing the PVC to break down. I have no evidence to support any of this -- just my gut feeling.

EC,

Your gut is exactly correct. Resin does have a chemical reaction in order to remove soaps however the glycerin which gets trapped in the sponge like nature of the resins also catches soaps as they pass through - entrapping them as well.

The resin will chemically react with PVC and eventually weaken it until it fails - there have been some good photo's some where else in this forum. We have had two 6" PVC columns split apart over time...

GCG

quote:

Several companies in Europe have been working on proprietary cellulosic biodiesel purification however most haven't been able to do it all.

Kinda wierd as everyone here seems to be able to make it work with woodshavings...

I'm pretty sure the ecopure is a result of an accidental discovery local to me. No big research project.

quote:

I don't know, does Ecopure really sound all that much better???

Stumpy reports that ecopure is clearly woodshavings so if you can get some for free then yes it is significantly better. Free.