[Gasification] eliminating carbon monoxide from coal gas

[GFWHELL at aol.com]

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,  
adkarve at gmail.com 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 <adkarve at gmail.com> 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 <mark at ludlow.com>  
wrote:
>> Dear Dr. Karve,
>> Bubble the gas through ammonium  hydroxide solution.
>> Mark
>>
>> -----Original  Message-----
>> From: Gasification  
[mailto:gasification-bounces at lists.bioenergylists.org] 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)
>>
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