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>methane gas turbines >nitrogen oxides Can someone explain to me how those produce nitrogen oxide? High school chem taught me CH4 + 2-O2 -> CO2 + 2-H2O... whe

by panny 1y ago

>methane gas turbines >nitrogen oxides Can someone explain to me how those produce nitrogen oxide? High school chem taught me CH4 + 2-O2 -> CO2 + 2-H2O... where's the nitrogen oxide?

taylodl 1y ago
The turbine produces high temperatures which then causes reactions with the nitrogen that's present in the atmosphere. There's also nitrogen present in the fuel. It's not 100% pure methane.
- panny 1y ago
  >There's also nitrogen present in the fuel. It's not 100% pure methane. That seems like the actual problem.
  - deleted 1y ago
    [deleted]
  - Zigurd 1y ago
    There's vastly more nitrogen in air than in methane. The ratio of air to methane in a gas turbine is also high, over 15:1.
- westurner 1y ago
  Does AGR Acidic Gas Reduction work with methane turbines? Shouldn't all methane-powered equipment have this AGR (or similar) new emission reduction technology? From https://www.ornl.gov/news/add-device-makes-home-furnaces-cleaner-safer-and-longer-lasting https://www.ornl.gov/news/add-device-makes-home-furnaces-cle... : > ORNL’s award-winning ultraclean condensing high-efficiency natural gas furnace features an affordable add-on technology that can remove more than 99.9% of acidic gases and other emissions. The technology can also be added to other natural gas-driven equipment. FWIU basically no generators have catalytic converters, because that requires computer controlled fuel ignition. ... FWIU, in data centers, "100% Green" means "100% offset by PPAs" (power-purchase agreement); so "200% green" could mean "100% directly-sourced clean energy". Should they pack up and pay out and start over elsewhere with enough clean energy, [ or should force methane generators to comply? ]
  - ec109685 1y ago
    It sounds like that's what they're adding for their permanent generators. Unfortunate that their portable "temporary" generators weren't equipped with this technology.
    - westurner 1y ago
      Though it's not a methane leak, in their case the problem is the poisonous byproducts of combustion FWIU; Looks like methane.jpl.nasa.gov isn't up anymore? https://methane.jpl.nasa.gov/ https://methane.jpl.nasa.gov/ We invested tax dollars in NASA space-based methane leak imaging, because methane is a potent greenhouse gas. Is this another casualty of their distracting, wasteful, and saboteurial hit on NASA Earth Science funding?
bigbadfeline 1y ago
You wrote the formula incorrectly, the proper left side of it is: CH4 + 2 O2 + 8 N2 /* there are 4 N2 molecules for each O2 molecule in air */ Or do you think someone is feeding pure oxygen to the turbine?

by panny 1y ago

>methane gas turbines >nitrogen oxides Can someone explain to me how those produce nitrogen oxide? High school chem taught me CH4 + 2-O2 -> CO2 + 2-H2O... where's the nitrogen oxide?

taylodl 1y ago

The turbine produces high temperatures which then causes reactions with the nitrogen that's present in the atmosphere. There's also nitrogen present in the fuel. It's not 100% pure methane.

panny 1y ago
>There's also nitrogen present in the fuel. It's not 100% pure methane. That seems like the actual problem.
- deleted 1y ago
  [deleted]
- Zigurd 1y ago
  There's vastly more nitrogen in air than in methane. The ratio of air to methane in a gas turbine is also high, over 15:1.
westurner 1y ago
Does AGR Acidic Gas Reduction work with methane turbines? Shouldn't all methane-powered equipment have this AGR (or similar) new emission reduction technology? From https://www.ornl.gov/news/add-device-makes-home-furnaces-cleaner-safer-and-longer-lasting https://www.ornl.gov/news/add-device-makes-home-furnaces-cle... : > ORNL’s award-winning ultraclean condensing high-efficiency natural gas furnace features an affordable add-on technology that can remove more than 99.9% of acidic gases and other emissions. The technology can also be added to other natural gas-driven equipment. FWIU basically no generators have catalytic converters, because that requires computer controlled fuel ignition. ... FWIU, in data centers, "100% Green" means "100% offset by PPAs" (power-purchase agreement); so "200% green" could mean "100% directly-sourced clean energy". Should they pack up and pay out and start over elsewhere with enough clean energy, [ or should force methane generators to comply? ]
- ec109685 1y ago
  It sounds like that's what they're adding for their permanent generators. Unfortunate that their portable "temporary" generators weren't equipped with this technology.
  - westurner 1y ago
    Though it's not a methane leak, in their case the problem is the poisonous byproducts of combustion FWIU; Looks like methane.jpl.nasa.gov isn't up anymore? https://methane.jpl.nasa.gov/ https://methane.jpl.nasa.gov/ We invested tax dollars in NASA space-based methane leak imaging, because methane is a potent greenhouse gas. Is this another casualty of their distracting, wasteful, and saboteurial hit on NASA Earth Science funding?

bigbadfeline 1y ago

You wrote the formula incorrectly, the proper left side of it is: CH4 + 2 O2 + 8 N2 /* there are 4 N2 molecules for each O2 molecule in air */ Or do you think someone is feeding pure oxygen to the turbine?