>Another reactivity question; how about sweated [lead free >solder}copper piping and brass valves for plumbing on a processor ? >Thanks for all the info >Andrew Leven
Copper and SVO: "I'm not so worried about the copper but what the copper does to the fuel. Did you ever check what happened to your fuel properties like oxidation stability and acid value? A lot of research has been done in Germany on VO (and biodiesel) fuel properties, and who I consider as the leading experts clearly warn against using copper in connection with VO because of the catalytic effect it has on the VO. The laboratory ASG Analytik-Service (http://www.asg-analytik.de), who were involved in the research leading to the "Rape Seed Oil Fuel Standard", says that just a few PPM of copper in VO will change the oxidation stability... [In SVO systems] with a catalytic metal, I think you have the best conditions and environment for decomposition of the VO, and the effects it has on the fuel properties again have an impact on the engine performance, engine conditions (lifetime) and emissions composition." -- Niels Ansø, Folkecenter, Denmark Effects of copper on SVO: Standardisierung von Rapsöl als Kraftstoff - Untersuchungen zu Kenngröben, Prüfverhafen und Grenzwerten, by Edgar Remmele, thesis on vegetable oil as fuel -- see pp 144-146 for the effects of copper on vegetable oil. Acrobat file, 1.4Mb - in German. http://tumb1.biblio.tu-muenchen.de/publ/diss/ww/2002/remmele.pdf -- From: Straight vegetable oil as diesel fuel http://journeytoforever.org/biodiesel_svo.html _______________________________________________ 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/
