1, Wood Syngas Allam Cycle BECCS Power PlantHome & Index Page Sitemap About Prolog Introduction A Quick Tour Footnotes & Links
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1, Wood Syngas Allam Cycle BECCS Power Plant
Home & Index Page
Sitemap
About
Prolog
Introduction
A Quick Tour
Footnotes & Links
What:
Where:
When:
Why:
How:
Wood
Syngas Allam
Cycle BECCS Power Plant
(Shown with already developed coal
syngasifier as a possible beginning prototype to build off)
(The largest biomass gasifiers seem to be 1,000 ton-per-day wet MSW
(Metropolitan Solid Waste [domestic garbage]) plasma torch gasifiers for
providing gas to sub-100
megaWatt electricity generating turbines.)
(Over 100 mW we find boatloads of U.S. wood pellets recently replacing pulverized coal in European power
plant boiler installations.)
(At the moment, it looks like I would have to use several 1,000 ton-per-day
plasma units for base load and supplement them with natural gas for peaks.)
Midwest Regional Carbon Sequestration
Partnership:
https://www.mrcsp.org/
https://en.wikipedia.org/wiki/Allam_power_cycle
Allam cycle is gas-only. Solid fuels such as wood need a solid-to-gas gasification module. See 3c Biomass, Coal, or Lignite Syngas Allam Cycle CCS Power Plant
https://en.wikipedia.org/wiki/Allam_power_cycle
The company:
https://www.netpower.com/technology/
https://www.netpower.com/news/ https://www.youtube.com/watch?v=vFcbev1TkoU
https://www.youtube.com/watch?v=1zDZmIDbDO0
Articles: https://www.powermag.com/inside-net-power-gas-power-goes-supercritical/?mypower
supercritical carbon dioxide (sCO2) cycles
This website's pages:
3a Natural Gas or Oil Allam Cycle CCS
Power Plant
3b Coal or Lignite Allam Cycle CCS
Power Plant
Similar Technologies
The basic Natural Gas or Oil burning Allam cycle module.
A leading chemical engineer, Rodney Allam, has invented a new
fossil-fuel powered thermodynamic cycle
for power plants. It has been named the "Allam Cycle". It's emissions are
sequestration grade and pressure CO2, potable water, industrial grade argon gas,
and industrial grade nitrogen gas - each coming out of their individual exhaust
pipes. A 1/10th size pilot plant has been constructed in LaPorte, Texas
(near Houston) and has been connected to the Texas electrical grid, providing 25
megaWatts of electricity since last October. As far as
I know, so far, so good.
This new technology
has the
potential of economically powering the reduction of fossil fuel greenhouse gas
emissions to net-zero by 2050 by powering the manufacture of biomass-based
net-zero replacements for fossil fuels such as gasoline, diesel, jet fuel, and
natural gas. Since fossil fuel is available everywhere, these fuel factories can
be located anywhere both biomass and CO2 sequestration strata exist. Mankind can
then consume the world's remaining fossil fuel by using it to power the
manufacture of net-zero fossil fuel substitutes.
Dubbed the "Allam Cycle", it exploits the thermal and pressure
characteristics of supercritical liquid carbon dioxide and water - instead of
pure steam, air,
or helium - as its working fluid. Relatively simple and 59% efficient, it uses
an external rocket-engine-like oxygen+methane combustor instead of a water
boiler. The combustor directly drives a simple high-temperature gas turbine-generator with a blast
of CO2 gas and steam. It can be powered by any methane-gasified fossil fuel,
i.e., natural gas, oil, coal, lignite. The only emissions are pure high pressure
liquid CO2 ready for underground disposal and pure liquid fresh water,
industrial grade nitrogen gas, and industrial grade argon gas, each coming out
of the Allam engine contained in it's own pipe. If renewable fuels are used and
sequestered, the Allam engine would produce
carbon-negative CO2 emissions.
It should be noted that the super-clean, fossil fuel versatile, Allam Cycle 30 mW(e)
grid-connected pilot plant - a new form of Oxy-fuel carbon capture - is
performing well and appears economically
competitive all the way down to non-CCS Lignite.
The first mass production Allam cycle power plant will be a 300 mW(e) single turbine version made by
Toshiba, possibly as soon as 2021. "While the challenges
remain significant and require a focused research effort, there don’t appear to
be any show stopping problems to commercialization of
this technology." - P.A. Strakey, et al., 2014.
Toshiba will manufacture the 300 megaWatt full size version. In addition to the 300 megaWatts of grid electricity, it might produce as much as 1 million gallons of potable water per day and 5% CO2 by volume. The Allam's oxyfuel combustor is pretty close to a rocket engine. Think of the massive white plume of steam coming out of a oxyfuel rocket engine as it lifts off.
Perhaps Toshiba could license their design to the world's top power plant companies to ultimately make 10 to 20 thousand 300 mW copies in the next 10 to 20 years. The coal and lignite versions would need an additional gasification module. Shutting down all the world's conventional coal plants would really pull the rug out from under Climate Change.
To this author, this achievement may open the door to halting the 100 million tons of CO2 the world adds to the air every day via unconfined fossil fuel burning and perhaps also halt most of the current plans for building over 1,600 new large conventional coal power plants in 62 countries [Urgewald's tally], replacing conventional air polluting coal power plant plans with plans for environmentally safe Allam cycle gasified coal power plants instead. (Recall pre-WWII "Town Gas" made from coal?)
Once fossil fuel CO2 addition to the air is halted by substituting the use of environmentally safe carbon-neutral renewable fuels instead of fossil fuels, CO2 subtraction from the air can begin with the goal of eventually restoring the air to the way it was before the beginning of the first fossil fuel age.
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I've been aware of what steam turbines looked like since 1956. This is the fattest turbine I've ever seen. Supercritical carbon dioxide must pack a heck of a wallop.
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Below: Close, but no cigar!
http://www.cleanenergysystems.com/
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Electricity Items
(The image above is from a different web site and will eventually be corrected.)
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