Re: Coal, Wyatt and Texas power
- --- In email@example.com, "mark r. johnson" <mrj53@m...> wrote:
> > Older folks will rememberswitched
> > the details but anyway SA and some other south Texas towns
> over fromplant
> > gas to coal and have been using it ever since.
> I guess by now I am one of the older folks, and this is specialized
> knowledge that we *don't* all remember. Actually, I want to express
> real skepticism that Wyatt was that influential in the building of
> lignite/coal plants in Texas. One cannot "convert" a natural gas
> to coal, as coal requires some elaborate and expensive machinery towrong
> handle it. I try to stay aware of electric generating technology and
> have never heard of a gas plant being converted to coal. If I am
> then please have mercy and point me to some education.<GRIN> no problem! mercy is granted!
It's called "pulverized coal firing" and can be adapted to natural
gas boilers with 'minimal' modifications to the boiler itself.
However, there is extensive, elaborate and expensive machinery
required to stock pile the coal, move it to the pulverizer, then
inject the very fine, finer than talcum powder, powdered coal, almost
like an atomized mist, into the burner. Advantages are complete
combustion, minimal to no ash. Sulfur in the flue gases can be
treated by passing the flue gases through limestone creating gypsum
and carbon dioxide. We know gypsum as sheetrock.
The GREAT Grand Funk Northern