We read, \"the cogenerated CO2 then being absorbed by the Hydrotalcite-based sorbent.\"
So then what happens to it? This sounds like gold-plated sequestration.

Why not just plant a tree?

Apparently, the \"sorbent\" is, for example K2CO3. This should be a boon to such potassium sources as Saskatchewan. Who knows what they will do with the contaminated K2CO3.

Unfortunately you almost lost me as a reader by repeating the same old lie. Hydrogen only produces pure water as the product of combustion if it burns in pure oxygen. Burn it in air instead and you also get NOx, lots of NOx. The value(s) of x in NOx depends on the temperature and conditions of burn.
Burn it in an Internal Combustion engine, without some serious controls and water injection and you get more and more dangerous NOx than when burning gasoline.
The problem with water injection is it doesn`t work in Winter, you can`t inject ice.

Try a fuel cell or an External combustion engine. Neither one produces the NOx that an internal combustion engine does. Updated Sterling engines anyone?

Hmmm, has anyone missed the fact that temperatures inside solar furnaces can be anywhere from 600 degrees C up to almost 4000 degrees C? Not much CO2 produced from that process-except what you get from the decomposition of Methane. Of course, if you use the Hydrogen & CO2 as a energy storage medium, then you simply re-react the hydrogen & CO2 to get CH4 & heat back.

The shame of it is that methane is a far better fuel than hydrogen, being both more energy dense, and easier to liquefy. With all of the proven fraud, mistakes, and predictions that have failed to come true, all claims of AGW, and ACC should be laughed at. ----------------------------------------------------------------------------------------- rdinning - May 17, 2011 @ 02:00 pm PDT The problems of NOx can be dealt with by running rich, with a catalytic converter. A properly designed water injection system will be insulated, and have an automatically controlled heating element installed, making it work just fine in below zero Fahrenheit weather.

i am a very old physical chemist, with phd(s) as required in research/teaching/industry. all this bull is unfortunate. the possibilities are many. about 2 yrs ago, \"science mag\" the journal of american association for the advancement of science(aaas) funded by nat\'l science fund, published an article using nanocrystalline gold as catalyst with pure hydrogen as product with small power use.

What a complete waste of time, energy and valuable research dollars. This process will have insignificant outcomes with saving the environment. He is also using a very finite resource for his hydrogen extraction. Please let us all focus on renewable energy sources if you really want to make a difference.

Hydrogen is the future Energy Carrier. Any improved form of research in this direction is most welcome.