Chasing Unicorns: The Last Exhale of Hydrogen Fuel Cell Vehicles

[Takumi]

A ruptured ammonia line would be a major hazard in an accident.

So how about we go with a urea line then? Onsite urea processing?

 

[iwannam3]

Urea is ammonia AND CO2 so one step forward, one step back.

 

[Takumi]

Urea is ammonia AND CO2 so one step forward, one step back.

No, it is not. One is less toxic. That's like saying Water is Hydrogen with Oxygen attached. Point is we are already using hydrogen fuel. We're just "safely" transporting it with C attached. Unless that C is being sequestered somehow, there's no point in hydrogen except rockets. Yes, we need rocket powered trucks to transport our consumer goods.

 

[iwannam3]

No, it is not. One is less toxic. That's like saying Water is Hydrogen with Oxygen attached. Point is we are already using hydrogen fuel. We're just "safely" transporting it with C attached. Unless that C is being sequestered somehow, there's no point in hydrogen except rockets. Yes, we need rocket powered trucks to transport our consumer goods.

From Wikipedia: The liver forms it by combining two ammonia molecules (NH3) with a carbon dioxide (CO2) molecule in the urea cycle.
Urease is an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia. The reaction occurs as follows:(NH2)2CO + H2O → CO2 + 2NH3

 

[mspohr]

Interesting article in todays NY Times about the difficulty of H2 gaining a foothold in Germany.
Car use is virtually non-existent (they say Toyota has recalled all of its Mirai cars?).
They are developing a train that runs on H2 as a prototype but may not pan out.
Plane have been considered but are not practical.
Hamburg Is Ready to Fill Up With Hydrogen. Customers Aren’t So Sure.