Keywords: Nitric acid, Tailgas, Energy efficiency.

Contents:

Energy improvement.
- Extensive utilisation of waste heat.
- - Plants and catalytic tailgas improvement.
- - Plants with alkaline tailgas improvement.
- Additional gas cooling in dual pressure process.
- Steam turbine application and utilisation of condensation heat.
- Modification of old plant.
Absorption improvement
- Dual pressure plants
- Tailgas purification by means of catalytic waste gas treatment for medium pressure plants.
New developments

W Freitag and R Maurer, Uhde GmbH, FR Germany.

14 Pages, 4 Figures, 1 Table.