Why natural gas/hydrogen blends (HCNG)? by Bruno Decio
The top reasons to choose HCNG:
Safety
Environmental Benefits
Impact on vehicle/powertrain
Technology
SAFETY
In case of leakage into atmosphere a demixing of the fuel occurs and the hydrogen fraction diffuses into air with its own properties: in closed room the flammability interval of pure hydrogen has to be considered;
A mixture leakage can be identified through the odour from the [...]