Dear Friends,
Today I started assembling a new BD batch production
installation down here in Tryavna, Bulgaria.The
purpose is to supply the local bakery with eco fuel.
I`v got everything I need as equipment and vessels, so
it will be functional within two weeks.
Here is the general idea: The feedstock will be neat
sunflower oil (an oil refinery is a part of the
company I am working for) and the process will be The
FOOLPROOF method of St Alex Kac (Got bless him!).And
here it goes: Filtered oil trough transportation pump
flows into the drying vessel (dryer), where is heated
to 600 C, the water is separated and drained from the
cone bottom, then under vacuum is circulated with pump
trough container, filled with silica gel to remove any
water content remaining. Next step the same
circulating pump (turbine) is transferring the oil
into the reactor, where the acid stage is processed
turbine pump mixing adding methanol H2SO4 point
by point according to Alex receipt. After processing
is over, the oil is transferred into storage tank for
settling. In the mean time the dryer is preparing
batch #2, which goes the same way. The next day, after
settling overnight, starts the second, base stage
(batch #2 is still in the reactor). After processing
batch #2 goes into storage tank #2 and batch #1 starts
processing. Notice: the dryer is preparing another
batch meanwhile.
Next day: Batch #1 goes into washing vessel #1,
equipped for mist and mix washing (there are some
references about oxidation of esters by aeration, so I
am going to avoid bubble washing). The tank is heated
to 350C (propane burners).Drained water is collected
and the BD goes to wash tank #2, while batch # 2
starts first wash and the dryer and the reactor are
preparing batches # 3 and 4. Eventually, after wash
tank #3 the BD goes to the dryer again, where is
heated to 450C paces trough silica gel and is filtered
in 5 micron filter. Next station lorry`s tanks.
Titration is made with samples, taken from the
reactor, using digital PH indicator. Unfortunately,
the only supply of NaOH is carbonated, so I am going
to increase the amount by 25% ( 3.1 x 1.25 = 3.875 g ~
3.9 g/l).
All vessels are stainless steel, around 1100 l each,
thermo insulated, propane/immersion heaters, digital
thermostats, cone bottom. Pipes are stainless steel,
so are the valves. The circulation pumps are stainless
steel, turbine, TEFT 3p motors, made in the USSR. The
transportation pump is stainless steel, gear, for both
directions.
The meth is recovered from the BD in the reactor
(heating vacuum) and from the glycerin after
treating with phosphoric acid. The condenser is 1 inch
stainless steel spiral.
All equipment origins from a formal dough mixing
system. I presume the batches will be 800 l oil.
Dear Friends, dear Keith, I will be REALY glad to
have your comments and advices!
And I have two questions to all:
Have you any opinion about concentrated aqueous
catalyst ( www.BiodieselGear.com)?
Can anyone explain me how could I make paper
chromatography test of the BD (the kind of solutions
and how to read the results)?
Best Regards to all
Rumen Slavov
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