Yes NOx emmissions can change when switching from petroleum to biofuels. They can go up or down depending on the specific circumstances according to what I read. However what can be said in a general sense is this; oxides of nitrogen form when combustion temperature is high enough for the reaction to take place between nitrogen and oxygen. I have found a way to reduce combustion temperatures by injecting a mixture of water and alcohol recovered from my fuel making process. I don't have a way of quantifying my emissions other than paying for a test but the system I put in my car can be enabled or disabled with the flick of a switch. If there is anyone on the list who is willing to test my car I would be very interested to learn what the effect of my system is on NOx emissions.
Joe francisco ramos wrote: >Dear all; > >_*This is not new*_ but the publicity and the way it was publicized >is.In the past several engine test where run and exhaust gases were >analyzed. ( Keith do you agree?) More nox are there. (It seems to me >higher nox is a manageable consequence when using biofuels). Some >biofuels produce more than the others but all produce more nox then >fossil fuel. >A credible analysis must consider several parameters and so it must >carry a LCA life cycle analysis; this is a must ( this is not a simple >task even though is not very difficult). At the end I believe ( this is >not hard data this is my guess ) biofuels still will perform better on >environmental terms and most likely will be more economical >as the damages cost of biofuels are much lower then teh one form fossil >fuels. >Very best for us >Chic >Joe Street escreveu: > > >>Olivier Morf wrote: >> >> >> >> >>>Source: http://www.timesonline.co.uk/tol/news/uk/science/article2507851.ece >>>September 22, 2007 >>> >>>Rapeseed Biofuel Produces More Greenhouse Gas Than Oil Or Petrol >>> >>>By Lewis Smith >>> >>> >>> >>> >>SNIP >> >> >> >> >>>Rapeseed and maize biodiesels were calculated to produce up to 70 per cent >>>and 50 per cent more greenhouse gases respectively than fossil fuels. The >>>concerns were raised over the levels of emissions of nitrous oxide, which is >>>296 times more powerful as a greenhouse gas than carbon dioxide. Scientists >>>found that the use of biofuels released twice as much as nitrous oxide as >>>previously realised. The research team found that 3 to 5 per cent of the >>>nitrogen in fertiliser was converted and emitted. >>> >>> >>> >>> >>> >>And what if good organic and biodynamic tecniques are used and the >>health of the soil and microorganisms is considered so that nitrogen is >>fixed through natural processes? Is this not a nitrogen sink rather >>than a source? Sigh....another brick in the smear campaign wall...not >>even a clever one. >> >> >>Joe >> >> >>_______________________________________________ >>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/ >> >> >> >> >> > > >_______________________________________________ >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/20070928/1427254f/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/
