Can ‘Green’ Ammonia Be a Climate Change?

This article was originally started appeared Yale Environment 360 and is part of Climate Desk agreement.

In Minnesota, there is a research farm with wind turbines that, when shaken, have very little gas. The wind energizes the ammonia-producing chemical plant, which does not disperse as a fertilizer under the turbines, and also burns a test tractor, saves energy for a day without wind, and — soon-burns the barns that dry their crops. . All without making CO₂.

Michael Reese, dean of the University of Minnesota, says: project. University studies have shown that the use of green ammonia (“green” in the sense that it is produced by renewable energy) for fertilizers, oil, and heat can drive carbon footprint by 90 percent of corn and small crops. “This is a change,” says Reese.

In support of this approach, zero-carbon liquid fuels are seen as green ammonia growing across fields. It predicts a new market for ammonia green as oil, and ultimately exceeds the global (and growing) demand for ammonia as a fertilizer. A 2021 International Energy Agency reports It predicts that by the year 2050, hydrogen (including ammonia) oil should be about 30 percent of the total oil by 2050, from zero today. The report predicts that cars will run on batteries and airplanes on fuel, but ammonia will be more important. freight companieswhich currently emits 3 percent of the world’s greenhouse gases and is trying to reduce it faster.

Ammonia is one of the main competitors in storing and transporting energy from renewable energy so that electricity is available at the right time and place. The idea is to use renewable energy to make green ammonia from crude oil, shipping by pipelines or ships, and burn it in power plants with modified turbines to run on ammonia. While batteries are ideal, they are suitable for small batteries for hours or days; 2020 Oxford Institute of Energy Studies reports determined that in large, long-term storage, liquid ammonia is hard to beat. Countries including Japan, Australia, the Netherlands, and the United Kingdom have global plans to use green ammonia to conserve (and export) their renewable energy resources.

With all that being said, medical expert Douglas Macfarlane at Monash University in Melbourne, Australia, expects the production of ammonia to rise almost. 100-fold in the coming years.

At present, however, ammonia production is not green. Currently the world produces 175 million tons of ammonia annually, mainly for use as fertilizer, using industrial power sources that generate greenhouse gas emissions: These companies account for 1 to 2 percent of global carbon emissions, making it one of the darkest in the world.

This will need to change if ammonia becomes part of the climate change solution. Ensuring that all of the ammonia is green, not contaminated, is a daunting task. Of course, ammonia, which is designed to store wind and solar energy, will be produced using renewable energy. But filling the oil and fertilizer requirements means more energy on top of it. The ammonia plants will need to change, or re-start their production processes. And engines will need to be modified to run new fossil fuels. Along the way, manufacturers and consumers have to deal with the problem: Ammonia is a toxin, and combustion can emit more greenhouse gases than CO.₂.