Recovery boilers - history and future
Vakkilainen, Esa (2014-06-11)
Esa Vakkilainen. (2014) Recovery boilers - history and future. Continuous development of recovery boiler technology – 50 years of cooperation in Finland : proceedings : International Recovery Boiler Conference, Tampere Hall, Tampere, June 11, 2014. p. 19-31. (Suomen Soodakattilayhdistyksen 50v juhlajulkaisu)
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Early recovery technology concentrated on chemical recovery as chemicals cost money and if one could recycle these chemicals then the profitability of pulp manufacture would improve. For pulp mills the significance of electricity generation from the recovery boiler was for long secondary. The most important design criterion for the recovery boiler was a high availability. The electricity generation in recovery boiler process can be increased by elevated main steam pressure and temperature or by higher black liquor dry solids as well as improving its steam cycle. This has been done in the modern Scandinavian units.