Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Chapter 2Achieved environmental benefitsThe main improvements are:• lower NO x formation• minimisation of energy consumption• increased firing efficiency in the primary reformer• prolonged life of catalyst tubes and outlet header• higher conversion per pass and reduced purge flow result in a more efficient ammoniasynthesis loop.For achievable emission and consumption levels, see:• Table 2.6 for energy consumption• Table 2.7 for NO x emissions• and Table 2.8 and Table 2.9 for other levels.Cross-media effects• increased energy consumption for compression due to higher process air requirements.Operational dataSee Description.ApplicabilityApplicable for new plants.EconomicsCost benefits can be assumed.Driving force for implementationPlant optimisation and cost benefits.References to literature and example plants[1, EFMA, 2000, 3, European Commission, 1997]Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers 61