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Old 12-04-2012, 04:54 PM
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Join Date: May 2012
Posts: 41
Biodiesel processor help needed

I bought a Biodiesel processor over six months ago and now is the time to use it, but I can't figure out the purpose of one of the copper tube with half plastic.

The tube that is on the right side that comes out from top of heater...

Close up... (Also, there is thread by the valve too, as if for the water hose)

Copper goes all the way through on the inside. There is also thread on the plastic side as if a hose is to be screwed on

Rest of the process I understood. Here are more pictures to show you the condition of the system.

Here is where Biodiesel sits, but what is that hose on the inside?

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Old 12-04-2012, 06:48 PM
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Join Date: Sep 2003
Location: Ft Lauderdale FL
Posts: 204
That is a GL Processor

You need to ask that question at the Infopop Biodiesel discussion group.

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Old 12-04-2012, 07:15 PM
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Join Date: May 2007
Location: florida
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that pipe within a plastic (pvc) is a condenser usually used to remove moisture before processing and to recover some of the methanol after processing. Go to biodiesel info pop as mentioned above and read ALL of Graham Lamings writings,to get a good understanding of the ins and outs of making real bio-diesel. Your engine will love it.
Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles
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Old 12-04-2012, 07:24 PM
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Location: coquitlam bc canada
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The copper pipe is for methanol recovery after processing

By flowing cold water through the plastic pipe connections with the processor pump running after the batch is finished the leftover methanol vapours will condense and you can drain off the condensed methanol and reuse for the next batch. The pipe inside the barrel is a standpipe , when the processed batch is pumped into the barrel the level of the bio will be higher than the pipe , you can open the valve connected to the pipe and bio will come out leaving the glycerol to come out the valve connected to the bottom plug. this is because the glycerol is more dense than the bio. Biodiesel infopop is a great resource for newbies much better than Journey to forever. Cheers Dan
It's always something simple
91 300D 603.960 (from japan) 194K
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Old 12-06-2012, 03:49 PM
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Location: South Wales U.K.
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Looks like an 'Appleseed' thats been modded into a 'GL' processor...

That tube arrangement is the Condenser for meth recovery and somewhere on there will be the Venturi to drive it....

Lots of information on-- - Powered by XMB 1.9.11

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

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Old 01-04-2013, 02:09 AM
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Join Date: May 2012
Posts: 41
Thank you everyone! I will check those out.

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