Cleantech Update

This is the Executive Summary from the 2006 US Departement of Energy White Paper "Partial Roles of Ammonia in a Hydrogen Ecconomy" by George Thomas and George Parks. -Editor Ammonia has a number of favorable attributes, the primary one being its high capacity for hydrogen storage, 17.6 wt.%, based on its molecular structure. However, in order to release hydrogen from ammonia, significant energy input as well as reactor mass and volume are required. Other considerations include: safety and toxicity issues, both actual and perceived The incompatibility of polymer electrolyte membrane (PEM) fuel cells in the presence of even trace levels of ammonia (> 0.1ppm). Given the state of the art in ‘cracking’ ammonia to produce hydrogen, there are many issues in the on-board use of ammonia similar to those identified for on-board fuel processors. Specifically, these include: high operating temperature (>500° C) Longevity and reliability of catalysts and other components (at high te...

Ammonia Fuel Network Mission: To promote the implementation of anhydrous ammonia as an affordable, sustainable, carbon-free fuel for transportation and stationary power applications, thereby enhancing economic security, reducing fossil-fuel dependence, and helping save the environment. Anhydrous ammonia is an ultra-clean, energy-dense alternative liquid fuel. Ammonia is the only fuel other than hydrogen that produces no greenhouse gases (GHG) on combustion. Ammonia will power diesel and spark-ignited internal combustion engines, direct ammonia fuel cells, and even combustion turbines. And, ammonia can be manufactured from simply water and air using clean renewable energy. info@ammoniafuelnetwork.org