Ammonia synthesis energy efficiency

Haldor Topsoe s ammonia synthesis technology is based on the S-200 ammonia converter. This is a two-bed radial flow converter with indirect cooling between the beds. This converter concept has been used extensively to upgrade existing converters (Topsoe or other designs) in modification projects to achieve higher capacity (up to 20%) and/or better energy efficiency.85... 

Application The ICIAMV process produces ammonia from hydrocarbon feedstocks. The AMV process concept offers excellent energy efficiency together with simplicity and reduced capital cost for plant capacities between 1,000 tpd and 1,750 tpd. Key features include reduced primary reformer duty, low-pressure synthesis loop and hydrogen recovery at synthesis loop pressure. 

Synetix Ammonia (AMV) All hydrocarbons-natural gas to naphtha Energy efficient, reliable, low-capital cost process uses low-pressure synthesis loop 3 1996... 

The previous sections mainly considered the individual process steps involved in the production of ammonia and the progress made in recent years. The way in which these process components are combined with respect to mass and energy flow has a major influence on efficiency and reliability. Apart from the feedstock, many of the differences between various commercial ammonia processes lie in the way in which the process elements are integrated. Formerly the term ammonia technology referred mostly to ammonia synthesis technology (catalyst, converters, and synthesis loop), whereas today it is interpreted as the complete series of industrial operations leading from the primary feedstock to the final product ammonia. 

Figure 2.20 Energy efficiency for ammonia synthesis. A typical ammonia plant is shown in Figure 2.21.

At the same time, running in long periods, i.e. improvement of operating rate is also the efficient way of energy-saving of plant. The actual energy consumption in ammonia synthesis production can be calculated as following equation ... 

Ammonia synthesis device is a highly efficient device for energy transformation and hydrogen production... 

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