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Ammonia standards
Based on ammonia’s characteristics, there are several challenges that need to be addressed before it can be used as an alternative fuel:
    •Ammonia is difficult to ignite and burn. Thus, it will require pilot fuel injection
    •Using ammonia will increase NOx emissions. Thus, it will require the installation of a selective catalytic reduction (SCR) aftertreatment system
    •There is potential for small amounts of unburned ammonia to be emitted from the exhaust system:
      •Very unpleasant odor
      •Dangerous for humans at more than 25 ppm
    •There is potential for emissions of N2O, a very potent greenhouse gas
In November 2020, MAN Energy Solutions drafted a preliminary fuel ammonia specification which is based on the Commercial Grade or ”C-Grade” with 99.5% purity. C-Grade ammonia is currently t
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Ammonia standards