Re: [Biofuel] truckers choose hydrogen power
1 liter of water = 1000g divide by molecular wt of water 18 gives 55.6 moles of water x 2 for 111 moles of H 1 liter of ethanol = 789.3 g divide by molecular wt of 46.07 = 17.1 mole of ethanol x 6 for 103 moles of H per liter. adding ethanol lowers # of H / liter. 1 liter of methanol = 791.4 g divide by molecular wt of 32.04 = 24.7 moles x4 for 98 moles of H so on a per volume basis you lower the H by adding alcohol. is you calculate the moles of H per gram is it 0.11/0.12/0.13 for water/methanol/ethanol respectively Original Message Follows From: Greg and April [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] truckers choose hydrogen power Date: Fri, 18 Nov 2005 07:41:33 -0700 The water may be more plentiful, but, it still takes up volume and mass. 1 gal of water weighs about 8.35 lbs. and takes up 231 cubic inches So 90 gal weighs over 750 lbs and takes up over 12 cubic ft. That's a lot, of extra weight and volume being taken up. I can't help but wonder if the water is being doped with alcohol - it would increase the amount of H2 per unit of liquid, and IIRC, increases conductivity of the water, not to mention decreasing the temperature of freezing solid. Can anyone confirm the effects of electricity through alcohol? Greg H. - Original Message - From: Zeke Yewdall [EMAIL PROTECTED] To: Biofuel@sustainablelists.org Sent: Thursday, November 17, 2005 16:31 Subject: Re: [Biofuel] truckers choose hydrogen power H. Well, considering that they go through 100 gallons of diesel fuel in an 8 hour day, and water (even clean water) is way more plentiful than diesel), that actually doesn't seem that bad if it allows saving maybe 5% of the diesel fuel. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] timing
I have a '82 Mercedes Benz 300d. I remember reading that you should advance the timing with BD. how many degrees , has anyone done it on a 300d, How? ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Liquid-liquid separator
very cool there should be a single inlet and 2 outlets the one of the two outlets is from the center/top of solution ( when you spin you form a funnel the inside has the less dense liquid) ant the other the outside /bottom. you will be able to seperate water from oil and possible glycerine from BD. The latter being a way to force the reation to completion faster and the latter a way to speed rinsing Where did yu get it and how much? Original Message Follows From: Rumen Slavov [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: [Biofuel] Liquid-liquid separator Date: Thu, 27 Oct 2005 11:13:47 -0700 (PDT) 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 __ Start your day with Yahoo! - Make it your home page! http://www.yahoo.com/r/hs ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Methanol substitution
The reaction works by replacing one alcohol with another in Fats you have glycerol which has 3 alcohol groups which are attached to 3 fatty acids when you react an alcohol with a acid you get an ester it is call a transesterification because you substitute one alcohol for another since the alkanes you mentioned do not have an alcohol group you could not use them doing the transesterification reaction. if you could catalytically oxidize to form a alcohol ... (oxidize alkane think explosion or fire) them maybe. Original Message Follows From: Teoman Naskali [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: [Biofuel] Methanol substitution Date: Fri, 28 Oct 2005 01:15:35 +0300 Just a thoght bu would it be possible to use methane or propane or buthane instead of methanol? One would have to have some methanol for the methroxide but still... that would save a lot of money. Has anynone experimented? Any good reason why I shouldn't? ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Lye - Metric to Imperial Unit Conversions
wow 3.5 g/liter is 0.0035kg/liter 0.35kg is 350 grams Original Message Follows From: Joe Street [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] Lye - Metric to Imperial Unit Conversions Date: Tue, 18 Oct 2005 15:48:15 -0400 Hunter McCormack wrote: I am trying to understand the conversion of lye quantities from metric to imperial and I have stumped myself in the process. I understand from given data that lye is used in the amount 1.0% of the virgin vegetable oil weight. It's given that this is approximately 3.5 grams/liter. This implies that the vegetable oil weighs .35 kg/liter. I measured the specific gravity of my WVO which is canola oil and it came in at 0.92. Just as a sanity check on my hydrometer ( why do I never never trust anything??) I measured out 20 liters of WVO by volume and weighed it on a surplus triple beam balance that I picked up (20 kg capacity for a song -what a deal). By this method I calculated 0.915 SG. BTW I got the same SG (0.92 with hydrometer) for brand new canola as well. regards Joe ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Start Up Problems
if you ar having problems meausring lye because of humidity set up a large clear bag and put your scale and lye inside. you can use coat hangers to make a ridig frame to hold the plastic up. tape gloves through the side of plastic bag (the new extra large zip locks shoudlwork well). use and old or second can of lye and open it up and pour some in a pan after you have closed the bag let it absorbe teh water and CO2 from you dry box open a fresh can to be only opend after teh water and co2 has been absorbed. this should reduce your water and co2 absorption. Original Message Follows From: Kurt Nolte [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] Start Up Problems Date: Sat, 15 Oct 2005 23:24:53 -0400 Something I keep hitting over and over in all my prelim test batches (Still haven't made one any bigger than a liter...): How's your humidity, and are you absolutely certain that your weights for the lye are accurate? I was having some huge problems with emulsions on a shake test, and with the scale I just recently purchased (Jeweler's scale, up to 500g) I discovered just how inaccurate my old one was; I was using way too much lye, and taking far too long to measure it out. It was absorbing a great deal of water from the atmosphere (70%+ humidity is a constant here). How big are your test batches? The full 2L capacity, or are you only doing 1L batches? I eventually moved to smaller batches so I could measure out my lye quicker, it helped a bit. My current test batches I mix up in a small 400mL Mason-type canning jar, 300mL of oil to about 75mL of Methanol, and just use a hot water bath to bring it to temperature, shake it for ten or fifteen minutes, put it back in the bath for ten, shake fifteen soak ten, and so on for about an hour and half. Produced some very clear, clean-looking results so far. . Have you tried heating up your wash water before doing the shake test? That also helped... I'm slowly, very slowly progressing back up to full sized test batches while I gather parts. Hoped some of this helps! -Kurt On 10/15/05, Peter Currie [EMAIL PROTECTED] wrote: G'day group it is with great embarrassment that l have my first post. For 3 months l have been doing test batches (lost Count how many) and still cannot past shake test. Methanol - From a drag racers 44 gallon drum - best apparently Lye - Tiny pearls 99+ - fresh - then flake Oil - supermarket virgin oil Deep cooker filled with water with thermo (bottling type to 120 deg. C ) Drill stand above 2Lt glass jar tall with narrow neck with screw top lid with hole for paint stirrer Have tried lots of combinations re mixing time (1hr to 2.5 hr) Mixing speed - slow to fast amounts of lye - 2.7g to 4.2g per lt amounts of methanol 200ml to 250ml per lt types of oil - canola , blended edible all say 100% unused After process the product separates nicely and after waiting 12-24 hours do shake test with rain water (all l have) usually it takes hours to separate with a thick layer in-between of white fluffy cloud like stuff (.5 inch thick) The pearl variety of lye dissolves quickly but is hazy whereas the flake is crystal clear. Am heating oil to 55 c then adding methoxide then stirring maint temp throughout. Have read and reread JTF site and archives but nothing leaps out as obvious, my process seems correct, my materials seem correct but l'm starting to feel Very stupid. Is there something on this side of the planet that l'm not aware of?. Also would be very keen to talk - SEE setup working in Melbourne Aust. I'm in the Dandenongs. Any advice would be appreciated, thankyou Regards Peter from Oz ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] source of methanol ca bay area
I have been trying go cart shops, hardwares stores does anyone know a source for methanol in San Jose, ca area. mike ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] White LYE
the ability to detect the formation of a chalky powder woudl be hard. If you grind the pearly pellets from chem lab you get a white powder or granuals the stuff from the hardware store will probably look white. the most import comment ahs to do with them looking lie they are melting as they absorb water from the air. this is going to be very suspect to the humidity of where you live. bottom line keep the container tightly closed possible put it in a extra plastic bag. Original Message Follows From: Bobby Clark [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] White LYE Date: Fri, 14 Oct 2005 11:14:22 -0400 I work with chemicals in the lab and the NaOH (lye) that we use is in larger pellets. Those pellets are not quite white (they are somewhat clear/transluscent), however, lye from the soap companies is usually in smaller pellets/flakes and should defintiely appear white. I got my last batch from the soap company and according to the MSDS is is 99% pure and it appears white. I hope this helps, Bobby Clark From: michael skinner [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] White LYE Date: Fri, 14 Oct 2005 02:34:54 + I'm a chemist and have used pure NaOH and it is white. Original Message Follows From: [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: [Biofuel] White LYE Date: Thu, 13 Oct 2005 18:23:01 -0500 I read somewhere that pure lye is not white but sort of opaque and the white lye is not pure and you need to use more. About 25% more. Does anyone have any information on this? I buy lye from a soap making shop and there is no marking on the container. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] White LYE
I'm a chemist and have used pure NaOH and it is white. Original Message Follows From: [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: [Biofuel] White LYE Date: Thu, 13 Oct 2005 18:23:01 -0500 I read somewhere that pure lye is not white but sort of opaque and the white lye is not pure and you need to use more. About 25% more. Does anyone have any information on this? I buy lye from a soap making shop and there is no marking on the container. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] liquid liqid centrifuge
has anyone tried a liquid liquid centrifuge. By continuously removing the dense gycerine you would drive the reaction forward requireing less methanol (the whole pont around the two step reaction) please see http://www.cheresources.com/centcontactor.shtml I think it would be possible to build something along these lines cheaply, take that old blender and put it inline with your reactor? mike in San jose ca ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] liquid liqid centrifuge
do you have any links to NH Coop or Mike Briggs Original Message Follows From: John Hayes [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] liquid liqid centrifuge Date: Wed, 12 Oct 2005 16:35:46 -0400 michael skinner wrote: has anyone tried a liquid liquid centrifuge. By continuously removing the dense gycerine you would drive the reaction forward requireing less methanol (the whole pont around the two step reaction) please see http://www.cheresources.com/centcontactor.shtml I think it would be possible to build something along these lines cheaply, take that old blender and put it inline with your reactor? Hey Mike. The NH Coop that Mike Briggs works with has an line-in centrifuge, but as far as I know, they only use it to skip settling, not to reduce the amount of methanol. We've been looking for our own centifuge - thanks for the link! jh ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Methanol and wastewater treatment systems
methanol my biodegrade but into what? if it degrades into methane that is a green house gas? Original Message Follows From: Keith Addison [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: biofuel@sustainablelists.org Subject: [Biofuel] Methanol and wastewater treatment systems Date: Mon, 10 Oct 2005 02:10:47 +0900 9.1.1 Microorganisms The toxicity of methanol to each of three bacterial groups, i.e., aerobic heterotrophic, Nitrosomonas and methanogens (key agents in the natural recycling of organic material in the environment and in wastewater treatment systems), was described by Blum Speece (1991). The following IC50 values (mg/litre) (the concentration that inhibited the culture by 50%) compared to the uninhibited controls were reported: Nitrosomonas (after 24-h exposure), 880 mg/litre; methanogens (after 48-h exposure), 22 000 mg/litre; and aerobic heterotrophs (after 15-h exposure), 20 000 mg/litre. Methanol was found to be completely inhibitory to ammonia oxidation by Nitrosomonas bacteria at a concentration of 5 x 10-3 M (about 160 mg/litre) (Hooper Terry, 1973)... ... An experimental EC50 value (the concentration that reduced the maximum observed biodegradation rate by 50%) for methanol of 2.8 mol/litre (89.7 g/litre) was obtained in a system employing an enriched mixed microbial culture derived from domestic waste water in the USA (Vaishnav Lopas, 1985). 9.2.1 Plants Hemming et al. (1995) determined the effect of methanol on the respiration of pepper (Capsicum annuum), tomato (Lycopersicon esulentum) and petunia (Petunia hybrida). Whole plants were exposed to either methanol vapour or methanol solution. The general response to methanol was the same for the three species, with a respiratory rate increase of up to 50% at the lower methanol concentrations tested. The response was the same for exposure to methanol vapour or solution. Exposure of a single leaf resulted in a systemic response throughout the whole plant within a few hours. The response lasted for several weeks. Decreased metabolic rates and waterlogged appearance were reported in plants following a brief exposure of a leaf to methanol concentrations 30%. Root tissue was reported to be more sensitive; a decrease in metabolic rate was reported following brief exposures to 10% methanol. 10.2 Evaluation of effects on the environment Methanol is readily degraded in the environment by photo- oxidation. Half-lives of 7-18 days have been reported for the atmospheric reaction of methanol with hydroxyl radicals. Methanol is readily biodegradable under both aerobic and anaerobic conditions in a wide variety of environmental media. Many genera and strains of microorganisms are capable of using methanol as a growth substrate. Generally 80% of methanol in sewage systems is biodegraded within 5 days. Methanol is a normal growth substrate for many soil micro- organisms, which are capable of completely degrading methanol to carbon dioxide and water. Methanol is of low toxicity to aquatic and terrestrial organisms and it is not bioaccumulated. Effects due to environmental exposure to methanol are unlikely to be observed, unless it is released to the environment in large quantities, such as a spill. In summary, unless released in high concentrations, methanol would not be expected to persist or bioaccumulate in the environment. Low levels of release would not be expected to result in adverse environmental effects. -- From: United Nations Environment Programme / International Labour Organisation / World Health Organization: International Programme On Chemical Safety, Environmental Health Criteria 196 - Methanol, from IPCS INCHEM, Chemical Safety Information from Intergovernmental Organizations, in cooperation with the Canadian Centre for Occupational Health and Safety (CCOHS) http://www.inchem.org/documents/ehc/ehc/ehc196.htm FWIW I think 22 000 mg/litre is 2.8 per cent. Best wishes Keith ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] transesterification
I'm a chemist. Has any one written anything about the details of the chemistry in making biodiesel. Looks like you are doing a transesterification to replace glycerine with methanol. This would drop the molecular wight and thus the viscosity. adding a little bit of an surfactant (soap) would form miscells which might help with the reaction i.e. run reaction at lower temp. does anyone know the details of the reaction? has an one considered taking the glycerine and reacting with acetic acid (vinegar) forming the tri-ester (glyceryl triacetate bp 258 C, specific gravity 1.156, soluble in ether) and adding that back into the fuel. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] transesterification
glycerine represent about 5% of the yield loss converting it woudl actually boost what could be added back by giving you 3 times the volume you lost. Original Message Follows From: JJJN [EMAIL PROTECTED] Reply-To: Biofuel@sustainablelists.org To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] transesterification Date: Fri, 07 Oct 2005 15:29:25 -0700 Hi Mike, Interesting question, I'm new with this so I can't answer your question, but what would the benefit be to adding glyceryl triacetate back to the fuel be? Higher yields or better properties of the end result? Thanks Jim michael skinner wrote: I'm a chemist. Has any one written anything about the details of the chemistry in making biodiesel. Looks like you are doing a transesterification to replace glycerine with methanol. This would drop the molecular wight and thus the viscosity. adding a little bit of an surfactant (soap) would form miscells which might help with the reaction i.e. run reaction at lower temp. does anyone know the details of the reaction? has an one considered taking the glycerine and reacting with acetic acid (vinegar) forming the tri-ester (glyceryl triacetate bp 258 C, specific gravity 1.156, soluble in ether) and adding that back into the fuel. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] experience with Kits or prebuilts systems
I would be very interested in hearing peoples comments contrasting diy plans small conversion kits i.e. hot water heater or drum into reactor small built systems ~$3k as well as what are your favorite sites for information or sales of these materials I have looked at the past posts. Mike in San Jose, Ca ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
