Re: [Biofuel] Biodiesel or Byproduct Powered Boiler
Hello Will >Hello everyone, > >I'm involved in a student run project to construct a 400 gallon batch >reactor at the University of Illinois at Urbana-Champaign. We cannot use >electricity as a source for our reaction heat, so we have been looking for a >product or byproduct fueled boiler to heat water that will pass through a >heat exchanger to heat the oil. Does anyone have any recommendations? I >came across a product from Agsolutions that claims it can burn a mixture of >product and byproduct, the ideal solution for us, but their site does not >provide very much information. I also read a few threads in the infopop >forum that mention the hazards of burning byproduct. :-) We've learnt not to set too much store by what one can read at the infopop forum. Nor even to go there, so I won't be checking it. I guess they're talking about acrolein? "Depending on the temperature, the thermal degradation of vegetable oils is a polymerisation (200-300 deg C), a degradation of vegetable oils into acrolein, ketene, fatty acids then formation of alcanes, alcenes above 300 deg C and finally a formation of a gas-liquid mixture from around 500 deg C up." http://www.nf-2000.org/secure/Fair/F484.htm BioMatNet Item: FAIR-CT95-0627 - Advanced Combustion Research for Energy from Vegetable Oils (ACREVO) So acrolein is something you might get if you let your frying pan get out of control. Almost any kind of burner will burn hotter than that. The problem is to get the stuff to burn properly, and completely. As Jan Warnqvist said on the list, the glycerine "can be extremely difficult to burn, since its urge to create polymeric compounds rather than vaporize is well known to anybody who have tried burning it." More information here: http://journeytoforever.org/biodiesel_glycerin.html#burners Burning by-product properly will proibably take an industrial-type burner (something you can't make yourself), which seems to be your conclusion by going to Agsolutions. Only half a solution, IMHO. Other options, check these two sections on that same page above, on composting, which Tom suggested, and biogas: Glycerine and biogas http://journeytoforever.org/biodiesel_glycerin.html#biogas Composting the by-product http://journeytoforever.org/biodiesel_glycerin.html#compost Don't you think there's an advantage in integrating it with the growing process? Another possibility is to burn WVO rather than the by-product. Roger Sanders' Waste Oil Heater burns WVO well, you could use it with a heat-exchanger: http://journeytoforever.org/biofuel_library/ethanol_motherearth/me11.html Roger might help you figure it out if you ask him. HTH. Best Keith >Is our goal feasible? > >Thanks, > >-- >William Kelleher >Sophomore, Electrical Engineering >University of Illinois at Urbana-Champaign > >email: [EMAIL PROTECTED] ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Biodiesel or Byproduct Powered Boiler
Will,
I run my boiler (heat + domestic hot water) on 100% biodiesel.
It is an "oil-fired" boiler. No conversion was necessary, just some minor
adjustments.
An "oil-fired" water heater might work well. Pre-heat the water via
solar or compost heat as Fritz suggested to minimize fuel requirements.
> came across a product from Agsolutions that claims it can burn a mixture
> >of product and byproduct,
Last winter I split the glycerine mix using phosphoric acid (see JTF).
-> crude glycerine w excess methanol (compost)
-> potassium phosphate (fertilizer)
-> FFAs
I blended the FFAs with biodiesel ("product and coproduct"?) and burned
it in my boiler. It required a bit of preheat in order to have reliable
starts. In splitting the mix, be sure to allow sufficient settling time and
be careful not to include any glycerine with the FFA. Glycerine with coke up
the nozzle on a boiler. I used 60-70%BD: 30-40%FFA
Tom
- Original Message -
From: "Will Kelleher" <[EMAIL PROTECTED]>
To:
Sent: Sunday, February 10, 2008 2:38 PM
Subject: [Biofuel] Biodiesel or Byproduct Powered Boiler
> Hello everyone,
>
> I'm involved in a student run project to construct a 400 gallon batch
> reactor at the University of Illinois at Urbana-Champaign. We cannot use
> electricity as a source for our reaction heat, so we have been looking for
> a
> product or byproduct fueled boiler to heat water that will pass through a
> heat exchanger to heat the oil. Does anyone have any recommendations? I
> came across a product from Agsolutions that claims it can burn a mixture
> of
> product and byproduct, the ideal solution for us, but their site does not
> provide very much information. I also read a few threads in the infopop
> forum that mention the hazards of burning byproduct. Is our goal
> feasible?
>
>
>
> Thanks,
>
> --
> William Kelleher
> Sophomore, Electrical Engineering
> University of Illinois at Urbana-Champaign
>
> email: [EMAIL PROTECTED]
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> messages):
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Re: [Biofuel] Biodiesel or Byproduct Powered Boiler
Hello Willie, there comes Jean Pains Reaktor for Compost to my mind.Depend naturally on availability of composting materials and probably a little burner to heat the water a bit more than the 60 degree cel. a composter can make As a second way could be Solarheat (only in summer?) Fritz - Original Message - From: Will Kelleher To: biofuel@sustainablelists.org Sent: Sunday, February 10, 2008 2:38 PM Subject: [Biofuel] Biodiesel or Byproduct Powered Boiler Hello everyone, I'm involved in a student run project to construct a 400 gallon batch reactor at the University of Illinois at Urbana-Champaign. We cannot use electricity as a source for our reaction heat, so we have been looking for a product or byproduct fueled boiler to heat water that will pass through a heat exchanger to heat the oil. Does anyone have any recommendations? I came across a product from Agsolutions that claims it can burn a mixture of product and byproduct, the ideal solution for us, but their site does not provide very much information. I also read a few threads in the infopop forum that mention the hazards of burning byproduct. Is our goal feasible? Thanks, -- William Kelleher Sophomore, Electrical Engineering University of Illinois at Urbana-Champaign email: [EMAIL PROTECTED] -- next part -- An HTML attachment was scrubbed... URL: /pipermail/attachments/20080210/94e4d2ae/attachment.html ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ -- next part -- An HTML attachment was scrubbed... URL: /pipermail/attachments/20080210/29bd7edf/attachment.html ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] Biodiesel or Byproduct Powered Boiler
Hello everyone, I'm involved in a student run project to construct a 400 gallon batch reactor at the University of Illinois at Urbana-Champaign. We cannot use electricity as a source for our reaction heat, so we have been looking for a product or byproduct fueled boiler to heat water that will pass through a heat exchanger to heat the oil. Does anyone have any recommendations? I came across a product from Agsolutions that claims it can burn a mixture of product and byproduct, the ideal solution for us, but their site does not provide very much information. I also read a few threads in the infopop forum that mention the hazards of burning byproduct. Is our goal feasible? Thanks, -- William Kelleher Sophomore, Electrical Engineering University of Illinois at Urbana-Champaign email: [EMAIL PROTECTED] -- next part -- An HTML attachment was scrubbed... URL: /pipermail/attachments/20080210/94e4d2ae/attachment.html ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
