In reply to OrionWorks's message of Wed, 3 Jun 2009 13:35:49 -0500: Hi, [snip] >I would assume the O+H2 --> H2O --> O+H2 cycle is considered to be a >much more popular transport of energy. Obviously there has been a lot >more research into the latter cycle. Nevertheless, it would be >interesting to discover if an equivalent (as well as an economical) >"transport" is possible through the C+O2 --> CO2 --> C+O2 cycle. [snip] A Grignard reagent can be used to reduce/bind CO2 into an organic molecule which can then serve as the source compound for other C based fuels, likely after further reduction (see e.g. http://www.chem.ucalgary.ca/courses/351/Carey5th/Ch19/ch19-2-1.html), however energy input is required to rejuvenate the reagent. Nevertheless, this might enable a carbon based cycle if adequate energy from other sources were available.
Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
