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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.
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. |
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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. |
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Quite right, [MB]. Carbon Dishlphide is highly flammable, and
Hydrogen Sulphide is more toxic than many Cyanides. |
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This is in some aspects reminiscent of the Solvay (ammonia-soda)
process, although that's wet chemistry. |
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Burn the hydrogen, sell the carbon, as long as I don't have to work there what's the problem. |
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8thof7 it's old fashion coal based chemistry.
Ps if you like things that go pop! Try nitrogen try-chloride? |
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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. |
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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. |
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