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Scientists discovered new way of making biodiesel
saw this on slashdot today. you can go to it and i have posted it below.
"National Geographic is reporting that Japanese scientists have discovered a way to convert vegetable oil into biodiesel with a much less expensive catalyst (between 10 and 50 times cheaper) than what is currently used. From the article: 'Any vegetable oil can become fuel, but not until its fatty acids are converted to chemical compounds known as esters. Currently the acids used to convert the fatty acids are prohibitively expensive. Michikazu Hara, of the Tokyo Institute of Technology in Yokohama, Japan, and his colleagues have used common, inexpensive sugars to form a recyclable solid acid that does the job on the cheap.'" interesting...
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I want to read the article that they published in Nature. I am going to try to find it at work on Monday. Anybody happen to have a subscription to Nature? I wonder how much sugar they have to use, and where the sugar is comming from? If I can find it I will post it for those who may be interested.
Andrew
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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Quote:
here it is. http://news.nationalgeographic.com/news/2005/11/1114_051114_biodiesel_2.html
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That would be the ellusive 'reusable catalyst' technology. I've heard of at least 3 places claiming they have the technology working, but haven't yet seen a product of it. On university (cornell?) supposedly had one working that they were going to release for public use once they got the patent issues worked out.
I hope that this one is the real deal! We need some better large scale production technology. Better backyard technology would be nice too. peace, sam
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"That f***in' biodiesel is makin' me hungry." 1982 300TD Astral Silver w/ 250k (BIO BNZ) 2001 Aprilia SR50 Corsa Red w/ 5.5k (>100 MPG) |
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It's an ingeneous approach, but...
... it is well beyond the avarage "homebrewer".
Basically, they figured out a way to form a solid substrate for sulphonation (attaching the reactive sulphonite, SO3H, groups) by burning the living crap out of simple sugars (glucose and sucrose) under nitrogen and then boiling it in sulphuric acid (under nitrogen). The resulting precipitate is a reacitve acid catalyst (they claim sligthly more efficient than striaght H2SO4), but since it remains in a solid phase during the esterification reaction recovery of the catalyst is simplified. Andrew, I have .pdf from Nature, and the supplementary material (the protocol). |
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Well I for one am sick of all those telling us that there is no way "alternative" fuels could possibly make a dent in the oil we use. Moore's law tell us differently (paraphrased as-technology doubles every 18 months). Yes all the corn produced by the usa may be needed with current methods; but add all the other wasted fuels- forest burns, used oils, newer techniques, more efficient engines and a corner could be turned. Biofuels is the worst answer for our energy needs... except for all the other answers.
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Here is a link to another article that goes into a little detail about using sugar for and acid.
http://www.greencarcongress.com/2005/11/inexpensive_eff.html
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
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Keep everything as simple as possible-but no simpler--Albert Einstein |
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
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Quote:
But the burnig twice as much seriously hampers any cost effectiveness.
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
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Quote:
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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Quote:
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Keep everything as simple as possible-but no simpler--Albert Einstein |
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Methanol as fuel does not get the same power per gallon....it gets half as much...you have to burn twice as much to get the same power....
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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