Re: [Biofuel] Biodiesel storage - was Re: Best Country's for producing BD
That's very useful information Keith thank you. One of our local brewers took some BD made from canola and put it on a cookie sheet and left it sit all summer and he says it hasn't dried the way oil does. He can't see any difference in it other than the dust it collected. Your info is even more encouraging. Joe [EMAIL PROTECTED] wrote: If you're in the US, yes. Usual industry advice (US NBB etc) is to use it within six months. They say many petroleum companies do not recommend storing petro-diesel for more than six months. Anyway the problem is that it's mostly soy biodiesel. Soy is not an ideal choice for making biodiesel, it's a semi-drying oil, the Iodine Value (IV) is too high - it oxidises, and polymerises. Biodiesel made from oils that fall within the EU standard, which sets an IV limit of 120, can be kept longer, or much longer. (The US ASTM standard doesn't specify an IV limit, maybe because a realistic limit would not be Big Soy-friendly.) We still have some of the first biodiesel we made, eight years ago, sealed in an HDPE flask with a bung, though it's been opened quite a few times, and it's still fine, nothing wrong with it. We have many samples of biodiesel we made and used years ago, but the samples are still okay. Never seen any bacterial decay or algae, and we've been all the while in places that get hot and very humid. Philip S. Okey gave this reply when this question was asked on the list before: In relation to the storage issues, from our experience it may not be much of an issue at all at the commercial level. We opened up a drum from our first reactor that was 4 years old a couple of weeks ago 45 gallons of it, it had been sitting outside in a steel drum with approximatly 5 inches of airspace over the esters (55 gal drum) so it has been through some record breaking winters and several high heat cycles unattended. Wven though this was a unintentional test is showing us some things. This batch was 50% soy 50% wvo procesessed at the same time. Supprised us... there was a little bit of cloudyness but not much at all, which was easily removed by simply stirring. One of our trucks has run almost a week on it with no change in performance from the freshest batch. HTH. Best Keith Rick [EMAIL PROTECTED] wrote: How about the best neighbourhood? Or the best village? It's the one you're in, right? The further away you get from that the less sense it makes. Same as food. Best Keith www.renewableenergyaccess.com/rea/news/story?id=50328src=rss 19 oktober 2007 Examining the World's Potential to Produce Biodiesel Researchers rank 226 countries according to their potential to make large volumes of biodiesel at low cost. by Madeline Fisher snip ___ 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/20071029/43cf37e6/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/
Re: [Biofuel] Biodiesel storage - was Re: Best Country's for producing BD
Hello Rick Dear Keith, Along that same line, I have the immpression from the posts I have read that biodiesel is not real stable and would not store and ship that well. Isn't it best used when it is freash? If you're in the US, yes. Usual industry advice (US NBB etc) is to use it within six months. They say many petroleum companies do not recommend storing petro-diesel for more than six months. Anyway the problem is that it's mostly soy biodiesel. Soy is not an ideal choice for making biodiesel, it's a semi-drying oil, the Iodine Value (IV) is too high - it oxidises, and polymerises. Biodiesel made from oils that fall within the EU standard, which sets an IV limit of 120, can be kept longer, or much longer. (The US ASTM standard doesn't specify an IV limit, maybe because a realistic limit would not be Big Soy-friendly.) We still have some of the first biodiesel we made, eight years ago, sealed in an HDPE flask with a bung, though it's been opened quite a few times, and it's still fine, nothing wrong with it. We have many samples of biodiesel we made and used years ago, but the samples are still okay. Never seen any bacterial decay or algae, and we've been all the while in places that get hot and very humid. Philip S. Okey gave this reply when this question was asked on the list before: In relation to the storage issues, from our experience it may not be much of an issue at all at the commercial level. We opened up a drum from our first reactor that was 4 years old a couple of weeks ago 45 gallons of it, it had been sitting outside in a steel drum with approximatly 5 inches of airspace over the esters (55 gal drum) so it has been through some record breaking winters and several high heat cycles unattended. Wven though this was a unintentional test is showing us some things. This batch was 50% soy 50% wvo procesessed at the same time. Supprised us... there was a little bit of cloudyness but not much at all, which was easily removed by simply stirring. One of our trucks has run almost a week on it with no change in performance from the freshest batch. HTH. Best Keith Rick [EMAIL PROTECTED] wrote: How about the best neighbourhood? Or the best village? It's the one you're in, right? The further away you get from that the less sense it makes. Same as food. Best Keith www.renewableenergyaccess.com/rea/news/story?id=50328src=rss 19 oktober 2007 Examining the World's Potential to Produce Biodiesel Researchers rank 226 countries according to their potential to make large volumes of biodiesel at low cost. by Madeline Fisher snip ___ 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/
