Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
General Engineering
Mechanical Engineering
Electrical Engineering
Aerospace Engineering
Nuclear Engineering
Materials Engineering
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
General Engineering
Mechanical Engineering
Electrical Engineering
Aerospace Engineering
Nuclear Engineering
Materials Engineering
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Engineering
Materials and Chemical Engineering
Can Green Ammonia Be a Climate Fix?
Reply to thread
Message
[QUOTE="Melbourne Guy, post: 6607273, member: 694539"] I've seen assumptions that curtailed RE will be used to generate green hydrogen and other products such as green ammonia, but your point and observation in your Point #2, [USER=124113]@Ygggdrasil[/USER], is the key to this topic. It is hard to fathom large scale electrolysis from RE being cost-effective when a key manufacturing input is unpredictable. This suggests that ammonia producers will buy long-term supply contracts, just as aluminium smelters etc. do, but whether they can afford to buy the RE is questionable when higher-margin consumers will be able to pay more. Certainly, some amount of green hydrogen and green ammonia is required for industrial processes, but the huge volumes touted in the OP's article seem unlikely. Apart from ships, which is mentioned in the article, batteries do seem superior for most road transport compared to ammonia, especially if internal combustion engines are assumed. ICE is being driven out of urban areas because of noise, as well as CO2 and NOx. Also, the article has a time frame to 2050. Battery energy density will increase considerably over that period and if anyone can design a workable metal-air architecture, any form of ICE or FCEV seems unlikely to compete on an efficiency basis. I remain sceptical of that. It seems a truly hard engineering problem. NantEnergy sold Zinc-air batteries but I believe it has gone out of business, Phinergy’s aluminum-air has been 'coming' for years but has not delivered, and Volkswagen's work on a lithium-air battery mooted almost a decade ago has failed to eventuate. Absolutely 👍 And that's where it is likely to remain! [/QUOTE]
Insert quotes…
Post reply
Forums
Engineering
Materials and Chemical Engineering
Can Green Ammonia Be a Climate Fix?
Back
Top