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Other research product . 2014

Recovery boilers - history and future

Vakkilainen, Esa;
Open Access
Published: 11 Jun 2014
Publisher: Suomen Soodakattilayhdistys - Finnish recovery boiler committee
Country: Finland

Recovery boilers are built all over the world. The roots of recovery technology are longer than the roots of recovery boilers. But it wasn’t until the invention of recovery boilers before the Second World War that the pulping technology was revolutionalized. This led to long development of essentially the same type of equipment, culminating into units that are largest biofuel boilers in the world. 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. Post-print / final draft

Subjects by Vocabulary

Medical Subject Headings: food and beverages humanities


recovery boiler, history, black liquor, emissions

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