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Carbon capture and sale.

or burning coal, less efficiently but without CO2.
  (+5)
(+5)
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coal and sulphur vapour are mixed in a air free fluidized bed, winch is kept agitated by blowing hydrogen sulphide through it.

If the temperature is kept down to a “dull red heat”. The sulphur will react with the coal to form; CS2 carbon disulphide, and H2S hydrogen sulphide. The CS2 is separated from the H2S.

The CS2 is heated up to a “bright red heat” and brakes down to; sulphur vapour, and soot aka carbon black,which can be soled as a filler etc.

So far we have use energy to turn coal into soot and hydrogen sulphide To get energy out (which is the reason for burning fuel) we need to burn the hydrogen sulphide, without polluting the environment

The hydrogen sulphide is mixed with a limited supply of air and burned in a catalyst, in close contact with the boiler tubes. the resulting chemical reaction gives liquid sulphur and steam. The sulphur is pumped back to the fluidized bed, and the steam is added to the steam that is pumped through the boiler tubes.

Sorry about the anachronistic language but my chemistry book was printed in 1923.

j paul, Jun 08 2011

coal http://en.wikipedia.org/wiki/Coal
Coal is at most 6% hydrogen. Is it really worth it? [spidermother, Jun 09 2011]

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       //Sorry about the anachronistic language but my chemistry book was printed in 1923.// Anyone who spells "sulphur" with a good old-fashioned "ph" is OK by me.   

       It does strike me that you have managed to create a complex fuel cycle in which the bulk of the components are hazardous. [8th] will love this.
MaxwellBuchanan, Jun 08 2011
  

       dangerous[+]
Voice, Jun 08 2011
  

       Quite right, [MB]. Carbon Dishlphide is highly flammable, and Hydrogen Sulphide is more toxic than many Cyanides.   

       This is in some aspects reminiscent of the Solvay (ammonia-soda) process, although that's wet chemistry.   

       Immediate bun [+].
8th of 7, Jun 09 2011
  

       Burn the hydrogen, sell the carbon, as long as I don't have to work there what's the problem.   

       8thof7 it's old fashion coal based chemistry. Ps if you like things that go pop! Try nitrogen try-chloride?
j paul, Jun 10 2011
  

       The basic idea will work because it is just old technology, being used to different ends. This is more doubtful. If burning Carbon disulphide with a limited supply of air gives Sulphur dioxide and Carbon, rather than Carbon dioxide and Sulphur. then it aught to be possible to recover a bit more of the energy in the coal, by burning the Carbon disulphide to Sulphur dioxide and reacting it with the Hydrogen Sulphide.
j paul, Jun 25 2011
  

       The basic idea will work because it is just old technology, being used to different ends. This is more doubtful. If burning Carbon disulphide with a limited supply of air gives Sulphur dioxide and Carbon, rather than Carbon dioxide and Sulphur. then it aught to be possible to recover a bit more of the energy in the coal, by burning the Carbon disulphide to Sulphur dioxide and reacting it with the Hydrogen Sulphide.
j paul, Jun 25 2011
  


 

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