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   rec.crafts.metalworking      Metal working and metallurgy      215,319 messages   

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   Message 214,734 of 215,319   
   Jim Wilkins to Richard Smith   
   Re: Integrated Coal Gasification Combine   
   27 Aug 25 22:08:44   
   
   From: muratlanne@gmail.com   
      
   "Bob La Londe"  wrote in message news:108o54a$ukkp$1@dont-email.me...   
      
   On 8/27/2025 4:03 AM, Richard Smith wrote:   
   >   
   >   A "coal iron oxygen gas-turbine steam plant combined cycle" refers to   
   >   an Integrated Coal Gasification Combined Cycle (IGCC) system,   
   ----------------------------------------   
   Would coal gasification be anything like wood gasification?  I've   
   watched a few videos on it (wood) and it seems like an awful lot of work.   
   Bob La Londe   
      
   --------------------------   
   This is part of "Clean Coal" whose goal is to use it without the CO2   
   emissions, despite the complexity and cost.   
      
   The older gasification method is similar to wood distillation, the solid   
   result is coke whose value is less urban smoke pollution for domestic use   
   and less sulfur contamination in steel making. Both produce tar which is a   
   nuisance to clean out.   
      
   Coal can also be turned into Water Gas, C + H2O <-> CO + H2. It's the 1800's   
   Town Gas that was so deadly if not burned. In the process he mentioned the   
   reaction is C + 1/2 O2 -> CO, then CO + H2O <-> CO2 + H2, and the CO2 is   
   somehow separated out and hidden, including the oxygen.   
      
   The conditions are controlled to minimize the reverse reactions, since if   
   atoms are hot enough they aren't fussy about who they pair up with, and when   
   they cool they usually tend to put up with each other.   
      
   In photosynthesis CO2 + H2O -> CH2O + O2.   
   CH2O joined into chains is Carbo-Hydrate, i.e sugar, starch and cellulose.   
   Trees are made of air.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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