It would be nice if we could make the undermentioned research an efficient method of producing fuel. Craig A. Grimes, professor of electrical engineering and his team used titanium dioxide nanotubes doped with nitrogen and coated with a thin layer of both copper and platinum to convert a mixture of carbon dioxide and water vapor to methane. Using outdoor, visible light, they reported a 20-times higher yield of methane than previously published attempts conducted in laboratory conditions using intense ultraviolet exposures. The chemical conversion of water and carbon dioxide to methane is simple on paper -- one carbon dioxide molecule and two water molecules become one methane molecule and two oxygen molecules. However, for the reaction to occur, at least eight photons are required for each molecule. "Converting carbon dioxide and water to methane using photocatalysis is an appealing idea, but historically, attempts have had very low conversion rates," said Grimes who is also a member of Penn State's Materials Research Institute. "To get significant hydrocarbon reaction yields requires an efficient photocatalyst that uses the maximum energy available in sunlight." The team, which also included Oomman K. Varghese and Maggie Paulose, Materials Research Institute research scientists and Thomas J. LaTempa, graduate student in electrical engineering, used natural sunlight to test their nanotubes in a chamber containing a mix of water vapor and carbon dioxide. They exposed the co-catalyst sensitized nanotubes to sunlight for 2.5 to 3.5 hours when the sun produced between 102 and 75 milliwatts for each square centimeter exposed. GFWHELL
Read more at: http://phys.org/news155471367.html#jCp In a message dated 4/16/2015 3:43:24 A.M. Eastern Daylight Time, [email protected] writes: A note explaining the background of my query: Hydrogen represents a clean fuel. I am a biologist and I came across a lot of very fancy microbial procedures for obtaining hydrogen. One needs specific microbes for this purpose and keeping the microbial culture pure is a big hassle in most large scale microbiological reactions. Some very simple physico-chemical methods are available for obtaining hydrogen. I got interested in the one using charcoal, because it is based on a renewable resource. This is the explanation why I wanted to remove CO from coal gas. I thank the list members for the overwhelming response. Yours A.D.Karve *** Dr. A.D. Karve Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com) Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) On Tue, Apr 14, 2015 at 8:43 AM, Anand Karve <[email protected]> wrote: > Dear Mark, > thanks for the tip. > Yours > A.D.Karve > *** > Dr. A.D. Karve > > Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com) > > Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) > > > On Sun, Apr 12, 2015 at 9:25 AM, Mark Elliott Ludlow <[email protected]> wrote: >> Dear Dr. Karve, >> Bubble the gas through ammonium hydroxide solution. >> Mark >> >> -----Original Message----- >> From: Gasification [mailto:[email protected]] On >> Behalf Of Anand Karve >> Sent: Saturday, April 11, 2015 8:15 PM >> To: Discussion of biomass pyrolysis and gasification >> Cc: Manohar Badiger >> Subject: [Gasification] eliminating carbon monoxide from coal gas >> >> Coal gas as automotive fuel >> Agriculture, forests and urban centres in India produce annually about 1000 >> million tons of combustible waste biomass. Its energy content is almost 3 >> times as much as the petroleum that we currently use in our country. >> Samuchit Enviro Tech developed a simple and nonpolluting technology for >> converting combustible biomass into charcoal. When hot charcoal is treated >> with steam, it produces coal gas, consisting of a mixture of carbon monoxide >> and hydrogen. We have used this reaction in an experimental stove, in which >> the coal gas is >> used as fuel. Can anybody suggest a simple method of removing carbon >> monoxide from coal gas? >> Yours >> A.D.Karve >> >> *** >> Dr. A.D. Karve >> >> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com) >> >> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI) >> >> _______________________________________________ >> Gasification mailing list >> >> to Send a Message to the list, use the email address >> [email protected] >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg >> ylists.org >> >> for more Gasifiers, News and Information see our web site: >> http://gasifiers.bioenergylists.org/ >> >> >> _______________________________________________ >> Gasification mailing list >> >> to Send a Message to the list, use the email address >> [email protected] >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org >> >> for more Gasifiers, News and Information see our web site: >> http://gasifiers.bioenergylists.org/ _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenerg ylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/
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