Hello Manuel, the FFA value does not alter the net heat value, but high FFA oils are usually quite corrosive. And - oil from grease traps may also contain mineral oils and other fatty substances. Good luck to you AGERATEC AB Jan Warnqvist ----- Original Message ----- From: "manuel cilia" <[EMAIL PROTECTED]> To: <Biofuel@sustainablelists.org> Sent: Wednesday, December 14, 2005 1:45 PM Subject: [Biofuel] grease trap waste
> Has anyone has any experience with grease trap waste. I am looking into an > idea of collecting grease trap waste and seperating the water from the > grease, then heating the grease to a level where it can be filtered and used > in gas turbines while the water is cleaned up and use for irrigation I know > grease trap waste is very high in FFA but does this atler it total energy > value or just its gelling point. > ----- Original Message ----- > From: "Joey Hundert" <[EMAIL PROTECTED]> > To: <Biofuel@sustainablelists.org> > Sent: Wednesday, December 14, 2005 8:33 PM > Subject: Re: [Biofuel] Widescale Biodiesel Production from Algae > byMichaelBriggs > > > > Todd, > > Please forgive the fact that I'm about to post a previous thread into > > this one, however, the archives don't seem to be working tonight. > > > > The following is Keith's last post on this issue. Subj: RE: Algae - was > > Re: [Biofuel] Gasoline Prices > > > > Todd, if you keep a good personal archive, please also note the thread > > "the bad news about biodiesel" > > > > http://www.mail-archive.com/biofuel@sustainablelists.org/msg58130.html > > > > as it also has some kernels. > > > > -Joey > > > > > > Hello Craig > > > >>Hello Keith, > >> > >>I've been doing a bit of research on microalgae production for > >>energy and found there is some research going on around the world in > >>various places. The NREL's 'Aquatic Species Program' research closed > >>in the mid 1990's due, among other things, to pressure for DOE > >>funding and the decision to focus their research budgets on ethanol > >>production. > > > > Were those the only reasons? I thought there were some negative > > reasons about algae too, could always be wrong though. > > > >>Also in the 1990's the Japanese took the idea on in a big way, > >>spending more than $250 million on research into hi-tec bioreactors > >>with optical fiber devices etc but found they were too expensive to > >>be economical. I believe research is continuing there but on a > >>smaller scale; > > > > I haven't heard of any such research here, and I'm a bit sceptical. > > As with biodiesel itself - it's quite easy to get the impression that > > there's lots of fancy stuff going on here, especially if you listen > > to several quite noisy people, and there are indeed some fancy > > Japanese patents, but in fact biodiesel hardly exists here, some (or > > most) of the few projects that do exist are very bad, to the extent > > that emissions tests for exemption from the restrictions of the > > anti-diesel campaign here (Tokyo and some other places) will no > > longer allow biodiesel because they've found it's so badly made it > > wrecks the machinery. Tests of our biodiesel have shown it would pass > > and wouldn't mess up any machinery, but they made a blanket rule: NO > > biodiesel, great, thanks guys. More and more people are making their > > own now, since we got involved (not boasting, that's what's > > happened), high-quality fuel, but it doesn't count, too bad. Same > > with ethanol, lots of good research, lots of schemes, but nothing > > happens. Yet. > > > >>China and Israel are also leaders in applied phycology and have done > >>work on biofuels from algae. > >> > >>Michael Briggs, of UNH, and his team are currently focusing on > >>enclosed systems where the algae will process wastewater too. > > > > Have they made any biodiesel from it yet? > > > >>John Benemann, who was involved in the NREL research, is now an > >>independent consultant and heading up an international network who > >>are researching into it: their website gives a good overview > > > > Thanks, I'll take a look. > > > >>http://www.co2captureandstorage.info/networks/Biofixation.htm . > >>http://www.co2captureandstorage.info/networks/documents/01roadmp.pdf > >> > >>Other links... > >>NREL research > >>http://www.nrel.gov/docs/fy04osti/34796.pdf > >>http://govdocs.aquake.org/cgi/reprint/2004/915/9150010.pdf > >> > >>Further studies > >>http://www.unh.edu/p2/biodiesel/pdf/algae_salton_sea.pdf > >>http://europa.eu.int/comm/research/energy/pdf/36_qingyu_wu_en.pdf > >> > >>Discussion forum exchanges > >>http://biodiesel.infopop.cc/eve/ubb.x?a=tpc&s=447609751&f=719605551&m > >>=932606061&r=932606061#932606061 > > > > Um... (burp), no thanks. > > > >>http://forums.biodieselnow.com/topic.asp?TOPIC_ID=3153. > >>http://forums.biodieselnow.com/topic.asp?TOPIC_ID=3414&whichpage=1 > >>http://groups.yahoo.com/group/oil_from_algae/ > >> > >>Algal biodiesel plant planned for California?? (I don't know > >>anything more about it) > >>http://www.bfi.org/Trimtab/spring02/biodiesel.htm > >> > >>US Company making algal biodiesel from power station gases > >>http://www.greenfuelonline.com/index.htm > >> > >> > >>I find the last link particularly interesting. My only problem with > >>it - and with John Benemann's network - is the idea of putting CO2 > >>from coal power stations into algae. All that fossil carbon still > >>ends up in the atmosphere eventually: we need to focus on ways of > >>locking it up permanently. > > > > Like just leaving it where it is now, for instance, nicely locked up > > and causing no trouble (apart from the odd war and so on). Some hope. > > > >>Also, as an alternative to algae, a lot of research is being done on > >>biomass-to-liquid technology which could turn trees into a very pure > >>diesel fuel with fewer pollutants than biodiesel and one that can be > >>used 100% in all diesel cars without adjustment. Do you think such > >>technology might be preferable? > > > > I've not much time for any of it. That's the "SunFuel" that Mercedes > > and VW are so enamoured of (and seem to be heading for vehicles that > > can use SunFuel but not biodiesel, uh-huh). Fischer-Tropsch stuff > > (oil from coal too), there's quite a lot about it in the archives. > > Centralised high-tech high-investment plants, nice and controllable, > > you won't have a bunch of backyard hooligans like us butting in and > > spoiling it all for the big guys (though so far it's the big guys > > who've done all the spoiling as far as bad-quality biodiesel is > > concerned). > > > >>Could it be used to encourage more forests to be planted around the > >>world and managed in a semi-natural way for the benefit of the > >>environment? > > > > Industrialised monocrop forests don't benefit the environment any > > more than industrialised monocrop anything else does, and that's > > surely what nearly all of it will be. It can be done well, of course, > > at least the forestry part of it can, and economically too, but > > that's not the sort of project that pencils well with a coorporate > > accountant in his office, especially if he's doing the pencilling. > > Multi-purpose multi-crops are highly unlikely to ensue. > > > >>Finally, does such gasification allow carbon capture and > >>sequestration, making it carbon negative? > > > > The more industrialised it is, the more fossil-fuel dependent it will > > be, and the less carbon negative as a result. > > > >>I've gone off-subject a bit: perhaps this is something for a new > >>discussion stream but I'd be interested to have others' thoughts. > > > > No matter. > > > > Anyway, don't mind me, I'm just not too interested or impressed by > > allegedly sustainable fuel schemes that don't promote local community > > self-reliance and are closed to the Appropriate Technology approach. > > Plenty here who don't see it that way though, feel free, whatever. :-) > > > > Regards > > > > Keith > > > > > >>Craig Jamieson. > >> > >> > >>-----Original Message----- > >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > >>Behalf Of Keith Addison > >>Sent: 12 April 2005 20:03 > >>To: [EMAIL PROTECTED] > >>Subject: Re: Algae - was Re: [Biofuel] Gasoline Prices > >> > >> > >>Hello John > >> > >> >>>Perhaps a better solution for Hawaii would be an algae based oil > >> >>>source. I have seen several references to it but haven't > >> >>>investigated as of yet. It seems you could use all kinds of land > >> >>>not currently used for agriculture. Would you like me to supply > >> >>>some links? > >> > > >> >Mike Briggs at UNH is at the forefront of this work. > >> > > >> >http://www.unh.edu/p2/biodiesel/article_alge.html > >> > >>So people keep saying, and they've been saying it for quite awhile, > >>but I don't see anything coming out of it other than this one article. > >> > >>And what have we here? > >> > >>http://www.green-trust.org/biodiesel.htm > >>How much land is needed to replace fossil fuels used for transportation? > >>by Michael S. Briggs > >> > >>:-) > >> > >>As I often find with people chasing after algae (not with O'Neil > >>though, the list member I referred to, he just wants to produce his > >>own oil independently, same with others), they're tempted by the > >>promised high yields and go chasing after the holy grail of how we > >>can get to continue our amazingly wasteful and profligate > >>gas-guzzling and avoid the cold turkey. It ain't going to work that > >>way, algae or no algae. The party's over, especially for the OECD and > >>more especially for the US: > >> > >>"On a per capita basis, the US, with 4.6% or world's population, uses > >>5.4 times more than its fair share of the world's energy, the EU 2.6 > >>times its share, Germany 2.6 times its share, France 2.8 times its > >>share, Japan 2.7 times its share, Australia 3.8 times its share. > >> > >>"India uses one-fifth of its fair share, Sudan less than one-fifth > >>its share, Nepal less than one-fifth its share. > >> > >>"The average American uses twice as much energy as the average > >>European or Japanese and 155 times as much as the average Nepalese. > >> > >>"In terms of production, Americans produce more per head than > >>Europeans and about the same as Japanese, but they use twice as much > >>energy as the Japanese to do it." > >> > >>From: World energy use > >>http://journeytoforever.org/biodiesel_404.html#energyuse > >> > >>As I said, it's mostly waste. Have a look at some of Hakan's previous > >>posts about building efficiency for instance. Average fuel > >>consumption of US vehicles is higher now than it was 20 years ago. > >>Etc etc. Nothing about this is sustainable, especially perhaps the > >>inequity of it, military adventurism in pursuit of commandeering > >>world energy supplies notwithstanding. > >> > >>This is simply the wrong question: "How much land is needed to > >>replace fossil fuels used for transportation?" > >> > >>Here are some better answers to better questions: > >> > >>http://archive.nnytech.net/sgroup/BIOFUELS-BIZ/1395/ > >>How much fuel can we grow? > >> > >>http://archive.nnytech.net/sgroup/BIOFUELS-BIZ/1801/ > >>Re: Biofuels hold key to future of British farming > >> > >>As we so often say here, merely substituting biofuels for fossil fuel > >>use is not nearly enough, a rational and sustainable energy future > >>requires great reductions in energy use, great improvements in energy > >>efficiency, and, most important, decentralisation of supply to the > >>local level, with all ready-to-use renewable technologies used in > >>combination as local conditions demand. > >> > >>Best wishes > >> > >>Keith > >> > >> > >> > >>_______________________________________________ > >>Biofuel mailing list > >>[EMAIL PROTECTED] > >>http://wwia.org/mailman/listinfo/biofuel > >> > >>Biofuel at Journey to Forever: > >>http://journeytoforever.org/biofuel.html > >> > >>Biofuel archives at Infoarchive.net (searchable): > >>http://infoarchive.net/sgroup/biofuel/ > >>_______________________________________________ > >>Biofuel mailing list > >>[EMAIL PROTECTED] > >>http://wwia.org/mailman/listinfo/biofuel > >> > >>Biofuel at Journey to Forever: > >>http://journeytoforever.org/biofuel.html > >> > >>Biofuel archives at Infoarchive.net (searchable): > >>http://infoarchive.net/sgroup/biofuel/ > > > > _______________________________________________ > > Biofuel mailing list > > [EMAIL PROTECTED] > > http://wwia.org/mailman/listinfo/biofuel > > > > Biofuel at Journey to Forever: > > http://journeytoforever.org/biofuel.html > > > > Biofuel archives at Infoarchive.net (searchable): > > http://infoarchive.net/sgroup/biofuel/ > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] Behalf Of Appal Energy > > Sent: Tuesday, December 13, 2005 8:50 PM > > To: Biofuel@sustainablelists.org > > Subject: [Biofuel] Widescale Biodiesel Production from Algae by > > MichaelBriggs > > > > > > Maybe I haven't been paying strict attention and this has been brought > > to the list's attention before. > > > > If so, then perhaps it bears repeating. If not, then it bears some > > review on everyone's part who is interested in a 100% conversion to > > alternative liquid fuels to supplant the present liquid petroleum fuels > > economy that the world is burdened with. > > > > http://www.unh.edu/p2/biodiesel/article_alge.html > > > > Good read. Conservative numbers. Realistic and completely plausible. > > > > A fairly decent "cradle to grave" analysis. > > > > Todd Swearingen > > > > _______________________________________________ > > 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/
