[Biofuel] FFA Dark bio

2007-09-27 Thread Rumen Slavov
Hi All,
I apologize to you guys,it is my mistake,the stuff is
not any oil,but residues from refining oils in the
process called degumming,where the oils are treated
with water solution of lye and the resulting soaps are
treated with acid to recover the FFA`s.Generally it is
FFA with some oil in and a lot of lipids and any
organic matter diluted in the source oil.But as far as
I am sure that FFA`s are good stuff to make BD in a
simple esterification process with a proper technology
I am doing my best to put it back in the nature,where
it came from.What really bothers me is that when we
treat the glyc from the bottom of the reactors,the
recovered FFA is dark colored!So I am going to
experiment around:I will produce soap from a virgin
refined oil and treat it with acid to produce a pure
FFA to see if it is also dark.Wish me luck!
By the way,we have offers for high acidic oils from
Brazil,no idea about the origin,maybe refining
residues too?
Regards
Ross


   

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[Biofuel] FFA decolorization

2007-09-26 Thread Rumen Slavov
Hi All,
I have a lot of high acidic /~60%FFA/ oil and had no
problem to esterify it, but the BD is the same dark
color as the source FFA`s and I am desperately trying
to bleach it without any success.I`v already tested
bentonite - no result.Has anyone any idea how to
lighten the BD?
 Ross 



   

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[Biofuel] FFA decolorization

2007-09-26 Thread Rumen Slavov
Hi all,
Keith,the quality is not a question,according to my
NIR the BD is 99.2% esters - the foolproof method -
acid stage and 2 alkaline stages with glycerin removal
between ,but I am supplying a close circle of friends
with fuel and the people asking me What is that black
sh.t you are producing?
Thanks,Mr Montenegro,the activated carbon is my last
mean,I somehow kept the hope that I solve the problem
with some bleaching agent since boiling the BD sounds
no good to me/polymerization!/ and filtering is OK
with 5 micron in the end of the line.
Ross 


   

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[Biofuel] Process details

2005-12-17 Thread Rumen Slavov
Hi Joe,HI all,
I have found a cheap alternative for the vacuum
pumps.In the scrap yard you can find a vacuum
amplifier from diesel Peugeot or maybe from another
car-the diesels usually need an amplifier to increase
the force to the break discs-gasoline engines take the
vacuum from the air inlet.Connecting an electric motor
to the unit to drive and connecting with appropriate
pipes to the vessel where the condenser is plumbed
will help to save energy.One point more-leave as less
room in the vessel to be vacuumed as possible since
the debit is not that mach.The unit has a
self-sufficient lubricating chamber and the rest is
question of RPM`s.
  Joe,I use both pump and mix washing but lately-only
mix and I invented a kind of trick to shorten the
settling time.Since I use hot water(35-45 degrees
C),after mixing for 5 min at high speed I let it
settle for 15 min,when the BD is almost separated with
some emulsion still separating.I pump the emulsion in
a different tank to settle-it is 85-90% water-and
start the next wash.When the BD in the second tank
accumulates,I give it another wash and let it dry
under vacuum at 60 deg C.But this procedure is taken
when I am not in a hurry,usually I use a marine fuel
separator to avoid any settling times.
  My batches are 800l four-five times per
week,depending of the supply with row sunflower oil
and one batch WVO per 10 days for fuel for my burner. 
  Actually I somehow lost interest for the one-stage
process it is a kind of routine and now I try to work
out the co-solvent process-if it works just imagine a
reaction completed within 5 min!If it works...
  Best to all
  Rumen

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[Biofuel] two stage proccess... doubts

2005-12-17 Thread Rumen Slavov
 Just an addition:
 In my early batches I was so curious how the BD will
affect the engine I did that test-after the third wash
the fuel was something like Fanta orange,with lot of
water dispersed within,but I pour it in the tank.My
Renault 11 was just fine.Then I heated the BD to
dewater it and what I found?The MPG raised and some
loss of power appeared(5-8%).The same BD with water
was better fuel than without water.The mean problem is
that the water does not stays dispersed!I recall in
the early `80 there was a Russian invention how to mix
gasoline with water by means of
piezo-quartz(ultrasonic frequency)submerged in the
tank,but all I can remember is only the idea!Nowadays
I read somewhere someone was trying to rich the same
effect by azeothrop agents.

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[Biofuel] two stage proccess... doubts

2005-12-16 Thread Rumen Slavov
Hi Mike,Hi Joe,
  I am completely agree with you on point one,Mike,I`v
experienced it on my own neck.Point two-you are right
about silica,but I gave it up-it is a mess when it
comes to recovering the stuff;nevertheless it is
useful to absorb any water content leftover,just pump
it trough the vessel with silica long enough.
 Point 3 -heating always helps!
 Point 4 -I am not American,I dint know what ISA
means-isopropil alcohol?
 Point 5 -I closed the circle too-I am using a small
Rielo burner/3l/h/8bar/ to heat everything including
the room with two SS pipes spiraling around the flame
for heat exchange-the first is circulating oil for
higher temp/distilling glycerin/ and the second is
with water for heating all vessels.Did I mentioned
that I put rock wool insulation everywhere.
  There is one more thing-I made the reactor and the
dryer airtight, capable of vacuum and pressure, so I
can work at temp well over 70 degrees C and put under
vacuum when evaporating is necessary (and not to worry
about any methanol fumes!).
  I started researching the so-cold co-solvent
processing with tetrahydrofuran-I`ll tell you guys,it
is an expensive stuff!The only plus is that it can be
recovered almost completely.I`ll keep you informed how
far I am trough.
  I will fully support the idea to co-experimenting
and sharing the results-just tell me what I can do to
help!
  Good luck to everyone!
  Rumen

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[Biofuel] Pump size

2005-12-09 Thread Rumen Slavov
Hi Joe,Hi Jim,
  My reactor is pump mixed too,but I am using two
pumps of different types-one SS from the food brand
and the other is clear water-cast iron case and
turbine.As far I am controlling carefully the both and
I didn't`t noticed any changes,the pumps are in fine
condition.BTW,the pumps are capable of recirculating
the volume of the R 20-22 times in an hour and the BD
is prima!I tried for comparison injecting the MeOH in
the inlet and to pore slowly on the top and did not
noticed any diff in the BD-it is always OK.It seems
that the temp and agitation are what counts.
  Best
  Rumen

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[Biofuel] biodiesel pH

2005-11-28 Thread Rumen Slavov
Hi,Andrew,
  Seems acidic,just put some backing soda till it gets
7 +/-0,25
  Luck!
  Rumen



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[Biofuel] Liquid-liquid separator

2005-11-01 Thread Rumen Slavov

 Hi,all,
 Hi,Juan, 
 Hi,Pieter,
 Hi,Mike,
The purpose of the fuel purificators/l-l
separators/ is to separate the WATER and any
contaminants in the fuels/heavy fuels/.They are
commonly used in the ships,the manufacturers are well
known companies as Alfa Laval,Sultzer and so
long.Juan,I'm sure that you can find the machinery in
the near-by ship yard.Piet,you are living where the
biggest port is(Euro-port-R-dam)and there won`t be a
problem to find fuel separator in the scrap yards.
  It is best to separate impurities and the water from
the WVO,but it is not all.You can use it to separate
the glyc after completing the primary reaction,you
don't have to wait the water to settle out by washing
the BD-just put the emulsion in the separator and
voila!So you can see how a simple machine can speed up
the technology,the batch can be ready within a day.
  Ask friends and sailors as I did,somebody will guide
you to the source.
  Best,
  Rumen




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[Biofuel] Liquid-liquid separator

2005-10-31 Thread Rumen Slavov

  Hi,all,
   You won`t believe it,but up to now I found
EIGHTEENS separators and the offers are still coming!
 The prices vary from $1000 to $4000 and the
manufacturers are different.If someone is interested,I
will ask how match is the cost of shipment.
  Best 
  Rumen




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[Biofuel] Separating Glycerine/FFA

2005-10-31 Thread Rumen Slavov

Hi,all,
  A friend of mine has good results with citric
acid,the glyc is as clear as water and high purity.
  Best 
  Rumen




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[Biofuel] Liquid-liquid separator

2005-10-28 Thread Rumen Slavov

 Hi,all,
  Thank you,Mike,for the e-mail of Mr Hinman,I will
try to contact him for more info.
  Hi,Lee,
  Couple a days ago I heard about this fuel-cleaning
system and make some calls to some friends of mine for
inquiry.It seems this kind of separators are commonly
used in the ships,the fuel does not com well with the
see water together.As I`v been told,every ship is
equipped at least with 2 separators,especially in the
navy,but in the commercial fleet too.
  Today I have some responds-I found one capable of
purifying 3,3 t/h mazut and the offer is $3500-second
hand of course,3,7 kW/1400 RPM.Since the oil is with
lower density,the rate can be increased,and I am going
to switch an inverter to the motor,what gives me the
opportunity to increase the RPM`s 6 times.I should see
the specifications of the bearings and replace them if
they are not suitable.
  Yes,Michael,this is the construction-one inlet,two
outlets,exactly as you described it.The one,with the
price was in the navy arsenal in Varna,the biggest
port in Bulgaria.It is Russian made,and I am still
waiting for more offers in Monday to come.I just
wonder why,if this machines are so wide spread,we did
not have used it before?
  To everyone interested:Search the maintenance
facilities of the navy and the ships yards,there
should be The Separator!
  I am still concerning about the use;I imagine this
way: WVO-seprtr/dewatering/-reactor-seprtr/glyc
out/-washing-seprtr/dewatering/-finished BD.Am I
somewhere wrong with the sequence?
  Best to all of you
   Rumen




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[Biofuel] Liquid-liquid separator

2005-10-27 Thread Rumen Slavov

  Hi,all,
  It seems I can get a new toy-a navy fuel
purificator,which is a kind of centrifuge,used to
separate water from the fuel.
  Has anyone have an idea how to use the separator in
the BD processing?Is it suitable for filtering the
WVO?Can I use it to avoid settling periods or even
washing?The thing is really massive and makes
4000-12000 RPM,continuous feeding.
  Any suggestions,guys?
  Keith?
  Best,
  Rumen




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[Biofuel] Suggestions for a homemade lid

2005-10-20 Thread Rumen Slavov
 Hi,Ken
  Use soapy water or whatever liquid soap to prevent
the silicon to glue where you don`t want to.
  Luck
  Rumen 




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[Biofuel] info needed

2005-09-23 Thread Rumen Slavov
Hi all,
  Dear Keith,
  There was a message in the list about a
scientist,who patented a process to produce
bio-plastics from glycerin.I think it is very
important discovery regarding environmental situation
and therefor,with my deep apologies,could you point me
to the link,please?
  Another one:Has anyone worked with carbonated lay?I
know,I have to make test batches,but any working
results will be welcome.
  Best Regards,
  Rumen




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[Biofuel] Linux, virii and Microsoft

2005-09-12 Thread Rumen Slavov
   Hi all,Hi Felipe,Hi Mike
   Sorry,I have been working abroad for some time now
without access to comp and net,so I missed the list.
   First of all,I deeply respect the efforts,made by
the members of the Linux society all over the
world,trying to make our life easier and less
expensive.Free software is a great thing,and it should
be,since so many programmers are working on it to make
it more efficient.
  As to myself,I never pretend to be all-knowing guru
and as a mater of fact I am no ashamed to say that a
am just user.The comp specialist in my house is my
son,he is keeping everything working.I do not have
time,nor the possibility to follow all the new stuff
coming up,so I feel comfortable with Slackware 10.1 on
my comp.
  Doug,you are right,we should start a Linux BD list
and there is at least one reason-to tell all our
friends here for the advantages of the free OS`s.But I
think it is better this way,giving more members the
possibility to touch the idea of freedom in the net.It
is close enough to the minds of the biodieselers-to
keep the world as clean as possible and to be free to
lead the life as everyone prefers.
  Best wishes to all of you,I am going back to the BD
installation I am assembling right now.
  Rumen Slavov

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[Biofuel] Warning to List Members

2005-08-29 Thread Rumen Slavov
  Dear Friends,
  As I wrote, there are not viruses for Linux. In the
earliest `80 there were a couple of exploits ( not
viruses!), but they dyed soon, when the kernel has
changed. The creation of a virus is a complicate
process, one has to know the exact target, what is
almost impossible with the variety of kernels in the
comps of the net. Linux is quickly evolving OS and
this is understandable - say 2000 programmers in
Richmond can not lead competition with 2 000 000
worldwide. I have been running different Linux
distributions for some 6 years and I have always in my
pocket a small CD 215 MB live CD to revive dead MS
comps.
  Don`t get confused - use Linux!
   Best
  R.Slavov

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[Biofuel] Linux, virii and Microsoft

2005-08-29 Thread Rumen Slavov
   Hi all,Hi Mike,
   Grutje, Arden, you have never been alone!Linuxoids
are all over the world! MS has been kicked out from
Japan, China and even from Bavaria!
  Dear Mike,rarely there are homes with just one
comp.In my house there are 4 and the net comes trough
firewalled router on Linux kernel, supplying two more
houses with shared Internet. This situation lasts for
2,5 years now and we all have not experienced any
troubles.My comp is dual boot - Linux/XP, `kuz my son
likes to play games under Windows, but even in this
case everything goes smooth.
  I would like to ask for assistance again - do
somebody knows how perform quality test of BD using
paper chromatography?
  Best to all
   R.Slavov   

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[Biofuel] Information needed

2005-08-28 Thread Rumen Slavov
 Hi Guys,
  I would like to ask again about two things:
 Have you any opinion about “concentrated aqueous
catalyst
(www.biodieselgear.com/documentation/AqueousCatalyst.pdf)?
  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
R.S.




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[Biofuel] Warning to List Members

2005-08-28 Thread Rumen Slavov
 Hi, Friends,
  It seems to me all of you are intelligent persons,
so I wonder why you are using Microsoft bullsh...? As
far as it is well known, there is not such animal -
virus or worm or Trojan - for Linux! For some time now
there are several distribution of Live CD`s, which
work even in an empty hard like Knoppix and many
others! My OS is Slackware Linux 10.1 and I never had
any problems in the net. And it is free of charge. The
OppenOffice 1.1.4 office is well ahead of MS office -
it opens files no matter which application is involved
in the creation ( for example MS office XP can not
open document written with MS office 97). Everything
can be downloaded free from the net and the
distributions are equipped with more than 2000
applications! All you need is to compile idconfig (the
network connection) and you are free of problems. Me,
personally, I do not have antivirus - I don`t need it.
  Try Linux!
  Best - R. Slavov 




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[Biofuel] Information needed

2005-08-28 Thread Rumen Slavov
Hi all,Hi Keith,
  Thanks for the advice, I had my doubts, but needed
assurance from an advanced biodieseler. As a mater of
fact I did some tests using conc. aque. cat. and had
problems washing it.
  As for my second question, the technology is simple,
but one has to know which solutions must be involved
in the paper or thin layer chromatography. Hopefully
someone with more scientific background will read the
message and tell as all how to make real direct tests
of the quality of the BD!
  Best to all!
  R. Slavov 




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[Biofuel] New BD instalation

2005-08-24 Thread Rumen Slavov
   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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[Biofuel] (Biofuel) First real post, help w/ large scale production

2005-08-20 Thread Rumen Slavov
   Dear Friends,
  As an electrician I wold propose to use a HV
transformer for neon lighting /you can see a lot of
it
over allmost any restorant entrance/ and a simple HV
diodes to make HV into DC. The transformer supply
3000
to 5000 volts.To avoid forming an ark,the electrodes
must be kept apart in a distance of 3-4 cm. 
  Have luck!
  Ross Milan





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