Friday, 21 September 2018 07:55

Could ammonia be the new motion lotion?

Written by  Mark Daniel
New Holland’s hydrogen tractor is likely to be on the market soon. New Holland’s hydrogen tractor is likely to be on the market soon.

Hybrid or electric vehicle (EV) makers had better mind their backs: the hydrogen fuel cell could still be in contention.

From an efficiency point these are at least twice as efficient as petrol or diesel powertrains, so only need half the fuel. But it seems that the biggest challenge holding the technology back is issues of safe storage and transport. 

The technology might now have moved a step closer to commercial reality: Australia’s CSIRO has developed a membrane technology process that enables safe and efficient production of ultra-pure hydrogen by extracting it from ammonia.

“Hydrogen fuel cells can be fitted to a wide range of vehicles -- cars, tractors, ships -- but concerns remain about safety during storage and transport,” says CSIRO principal research scientist Dr Michael Dolan.  

“Our technology allows extraction from ammonia that increased safety and had benefits in handling and storage”.  

Dolan says to move a lot of hydrogen it must be in liquid form -- much more dense than gaseous fuels. In the case of hydrogen, this is difficult to achieve without resorting to very low temperatures; but ammonia (nitrogen and hydrogen) forms a liquid at mild temperatures and behaves much like LPG.

In practical terms, ammonia carries a lot of hydrogen; the challenge is to pull that hydrogen back out, and it’s now achievable with CSIRO’s new membrane technology. From a safety aspect, ammonia suits transport and storage because it burns slowly and is hard to ignite.

Before long, says Dolan, fuel cells will be used in all forms of transport including tractors. For example, New Holland’s hydrogen tractor is reckoned likely to be on the market within three years. 

He says CSIRO is also researching solar energy, bio-mass and other renewable sources and is making ammonia production more efficient -- the latter having implications for fertiliser production. 

And there is new interest in straight ammonia as a substitute fuel for diesel in tractors, a process trialled in the US with reasonable results.

More like this

A reliable, no-fuss workhorse

Showcased with a T7.245 at the recent National Fieldays, New Holland has expanded its T7 tractor range offering in New Zealand with the launch of a new Tier 3 long-wheelbase configuration, aimed at users looking for a reliable, no-fuss workhorse.

New Holland combines crack 50 years

New Holland is celebrating the 50th anniversary of the introduction its Twin Rotor threshing and separation technology, which has evolved from a single model in 1975 to a range today, led by the new CR10 and CR11.

Gong for NH dealers

New Holland dealers from around Australia and New Zealand came together last month for the Dealer of the Year Awards, which recognises the top-performing dealerships across the New Holland network.

Featured

Dr Mike Joy says sorry, escapes censure

Academic Dr Mike Joy and his employer, Victoria University of Wellington have apologised for his comments suggesting that dairy industry CEOs should be hanged for contributing towards nitrate poisoning of waterways.

People-first philosophy pays off

The team meeting at the Culverden Hotel was relaxed and open, despite being in the middle of calving when stress levels are at peak levels, especially in bitterly cold and wet conditions like today.

Farmer anger over Joy's social media post

A comment by outspoken academic Dr Mike Joy suggesting that dairy industry leaders should be hanged for nitrate contamination of drinking/groundwater has enraged farmers.

From Nelson to Dairy Research: Amy Toughey’s Journey

Driven by a lifelong passion for animals, Amy Toughey's journey from juggling three jobs with full-time study to working on cutting-edge dairy research trials shows what happens when hard work meets opportunity - and she's only just getting started.

National

Machinery & Products

» Latest Print Issues Online

The Hound

Faking it

OPINION: Demand for red meat is booming, while it seems the heyday of plant-based protein is well past its 'best…

M.I.A.

OPINION: The previous government spent too much during the Covid-19 pandemic, despite warnings from officials, according to a briefing released…

» Connect with Rural News

» eNewsletter

Subscribe to our weekly newsletter