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Ammonia Recovery from an Ammonia-Air Gas Mixture in an Absorption Column  File Size 3.83K | Date Added August, 21, 2000 You can you use and modify any of these worksheets with the Vissim 7 trial

Steady state absorption column where ammonia is recovered from an ammonia-air gas mixture by absorption into water using a counter-current-packed column. Ammonia is recovered from an air-ammonia gas mixture by absorption into water, using a countercurrent packed column. The absorption of ammonia in water is accompanied by the evolution of heat which causes a rise in the liquid water temperature and hence a change in the equilibrium relationship. The problem and data values are taken from Backhurst and Harker (1990). Assumptions This is a steady state design. It is assumed that there are no heat losses from the column and that there is zero heat exchange between the gas and liquid phases. Consequently the gas phase temperature will remain constant throughout the column.

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