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Latest developments in ammonia production technology

Figurę 11. Layout of ammonia plant reforming section before and after revamp with HTER

7 New large-scale ammonia plants

The developments mentioned above are also very interesting for the design of large scalę ammonia plants, and can be used to keep the size of the most critical part of the equipment at reasonable sizes. As such both the prereformer and/or the HTER-p are used to reduce the size of the primary reformer.

7.1 Conventional scheme - 4000 MTPD

The ”conventional” scheme as shown in Figurę 12 above is well referenced, and can easily be scaled up compared to the capacities being considered today. It is a simple scalę up, where optimised operating conditions, for the reforming section and the ammonia synthesis loop in particular, are defined in order to keep the equipment sizes at a minimum. In this aspect the prereformer and the HTER are key elements in keeping the reformer size as Iow as possible, and to reduce the steam export in stand alone ammonia plants.

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