Joffre, Alberta

A few ammonia plants have been located where a hydrogen off-gas stream is available from a nearby methanol or ethylene operation (e.g., Canadian plants at Kitimat, BC and Joffre, Alberta). Gas consumption at such operations range from 25 million to 27 million BTU per tonne of ammonia, depending on specific circumstances. Perhaps more important, the capital cost of such a plant is only about 50% of the cost of a conventional plant of similar capacity because only the synthesis portion of the ammonia plant is required. However, by-product carbon dioxide is not produced and downstream urea production is therefore not possible56. 

Advanced Sclairtech Also written AST. A version of Sclairtech which uses a different Z-N catalyst. There are two autoclave reactors in series having independent monomer, co-monomer, and catalyst feed systems. Operated by Nova Chemicals at Joffre, Alberta, Canada in 2002. 

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