Introduction

Green AAG: (The Etymology)

“Ammonia produced from green resources is termed as ‘Green Ammonia’ and the Anhydrous Ammonia Gas is abbreviated as ‘AAG’ hence the term ‘GREEN AAG’. It contains about 82.20% Nitrogen and 17.80% Hydrogen (w/w), hence the best source of Nitrogen and Hydrogen as well”

Useful Features

  • Sustainable Nitrogen Fertilizer: - Capable to sustains demand load of fertilizer sector with minimal consumption of resources (land, air & solar energy). It is precursor of various nitrogenous fertilizers or it can directly be injected into soil.
  • Sustainable Fuel for IC ENGINE: - Ammonia achieves the highest thermodynamic efficiency of an IC Engine, comparable to ‘Hydrogen Fuel Cell’. It can be used directly as ‘green fuel’ in IC Engine in compression ignition and spark ignition regime as well.
  • Excellent Hydrogen Storage: - Practically removes all the problems of storage handling and transportation of ‘Green Hydrogen’. Hydrogen density in liquid ammonia is about 150% of pure liquid hydrogen, and it can be stored in liquid form in moderate conditions of pressure (18-20 Bar) and temperature just like LPG. Hydrogen can easily be recovered at site of consumption.
  • Long-term Storage of Renewable Energy: - Green AAG can help cope with seasonal intermittency of the solar power; we can use it for long term energy storage. We know that generally solar power plants remain operative for 300-320 days each year, we can store it in moderated conditions of pressure and temperature and use while in-operative (non sunny days) of solar power.

Important Facts About Ammonia

  • Ammonia is an inorganic chemical compound of nitrogen & hydrogen with the formula NH3, a stable binary hydride and the simplest pnictogen hydride, a colourless gas with a distinctive pungent smell.
  • Ammonia occurs in nature and has been detected in the interstellar medium. It is produced biologically in a process called nitrogen fixation by micro-organisms. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.
  • Ammonia is produced industrially by the Haber process, the process helped revolutionize agriculture by providing cheap and convenient nitrogenous fertilizers. The global industrial production of ammonia is about 250 Million Ton.
  • Around 70% of ammonia produced industrially is used to make fertilizers in various forms and composition, such as Urea, Diammonium Phosphate Ammonium Nitrate, etc. Ammonia in pure form is also applied/ injected directly into the soil.
  • Ammonia, either directly or indirectly, is also a building block for the synthesis of many chemicals.
  • Ammonia is caustic substance with toxic properties, causing damage to cells and tissues. For this reason it is excreted by most animals in the urine, in the form of dissolved urea.
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