Re: [biofuels-biz] Re: Burning sunflowers
BYW, they might want to pick a seed with higher oil content. http://www.journeytoforever.org/biodiesel_yield.html James Slayden On Sat, 21 Dec 2002, hcr_ii [EMAIL PROTECTED] wrote: Todd, when I was a student in this department there was quite a bit of work being done on the pyrolysis of coal. I suspect this is what they are talking about in this paragraph: Waste pyrolysis oil is currently burned as fuel, but this can be quite polluting, said Dr Dupont. Our system would still make use of its energy potential, while allowing the often noxious chemicals in the oil to be more easily controlled. i.e. 'waste' oil from a totally separate process, not the co-product of the steam reforming of sunflower oil. H --- In biofuels-biz@yahoogroups.com, Appal Energy [EMAIL PROTECTED] wrote: http://reporter.leeds.ac.uk/483/s3.htm All a bit elusive... quote: Most methods of producing hydrogen burn another fuel for energy, which itself creates pollution - carbon monoxide, nitrogen oxides and other emissions, said Dr Dupont. Our catalyst uses oxygen from the air to heat up naturally, and this heat is used to reform the oil with steam to create hydrogen. The excess carbon dioxide is taken into the second catalyst, then released for storage or use in other chemical processes, ensuring that damaging levels of CO2 aren't just put back into the atmosphere. Oxygen from the air to heat up naturally... Interesting. I wonder what their loss rate of catalyst, or energy cost to restore it if needed, or life cycle energy cost to refine it. They mention pyrolysis in a latter paragraph. Wonder where they get the damaging levels of CO2? If they were using the pyrolytic fuels from the process itself to perpetuate stripping (not creating) hydrogen they would be carbon neutral at worst, erego no damaging levels of CO2. Not to say that CO2 recovery is not intelligent, as it could be used to produce methanol as a useable byproduct, among other things. Todd Swearingen Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [biofuels-biz] Re: Burning sunflowers
Too bad. Their press release makes it seem as if the process is a closed biofuel loop. Todd Swearingen Todd, when I was a student in this department there was quite a bit of work being done on the pyrolysis of coal. I suspect this is what they are talking about in this paragraph: Waste pyrolysis oil is currently burned as fuel, but this can be quite polluting, said Dr Dupont. Our system would still make use of its energy potential, while allowing the often noxious chemicals in the oil to be more easily controlled. i.e. 'waste' oil from a totally separate process, not the co-product of the steam reforming of sunflower oil. H Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[biofuels-biz] Re: Burning sunflowers
I read this report with interest a few months ago and posted details on a different biofuel board. Dr Hampartsoumian, who has led the research was actually one of my lecturers during my time at the FE Dept at Leeds. H --- In biofuels-biz@yahoogroups.com, David Teal [EMAIL PROTECTED] wrote: Quote from the Leeds University alumni magazine www.leeds.ac.uk/alumni : Fuel and energy researchers are hoping to use sunflower oil to produce hydrogen, a fuel of the future. Hydrogen has been attractive as a fuel because it can create electricity with no harmful emissions. Most methods of producing the gas, however, create pollution. Researchers are testing a pollution free system using only sunflower oil, air, water vapour and two special catalysts. David T. Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[biofuels-biz] Re: Burning sunflowers
Todd, when I was a student in this department there was quite a bit of work being done on the pyrolysis of coal. I suspect this is what they are talking about in this paragraph: Waste pyrolysis oil is currently burned as fuel, but this can be quite polluting, said Dr Dupont. Our system would still make use of its energy potential, while allowing the often noxious chemicals in the oil to be more easily controlled. i.e. 'waste' oil from a totally separate process, not the co-product of the steam reforming of sunflower oil. H --- In biofuels-biz@yahoogroups.com, Appal Energy [EMAIL PROTECTED] wrote: http://reporter.leeds.ac.uk/483/s3.htm All a bit elusive... quote: Most methods of producing hydrogen burn another fuel for energy, which itself creates pollution - carbon monoxide, nitrogen oxides and other emissions, said Dr Dupont. Our catalyst uses oxygen from the air to heat up naturally, and this heat is used to reform the oil with steam to create hydrogen. The excess carbon dioxide is taken into the second catalyst, then released for storage or use in other chemical processes, ensuring that damaging levels of CO2 aren't just put back into the atmosphere. Oxygen from the air to heat up naturally... Interesting. I wonder what their loss rate of catalyst, or energy cost to restore it if needed, or life cycle energy cost to refine it. They mention pyrolysis in a latter paragraph. Wonder where they get the damaging levels of CO2? If they were using the pyrolytic fuels from the process itself to perpetuate stripping (not creating) hydrogen they would be carbon neutral at worst, erego no damaging levels of CO2. Not to say that CO2 recovery is not intelligent, as it could be used to produce methanol as a useable byproduct, among other things. Todd Swearingen Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
