A REVIEW OF RECOVERY BOILERS PROCESS DESIGN

The design data of 40 chemical recovery boilers were collated and eval uated. Key sizing characteristics were compared with industry-establis hed design limits. Most of these limits were confirmed by the data. Th e thermal design of the boilers was analyzed and it was concluded that furnace surface area was the dominant feature. In addition to the hea t input, the black liquor chlorine and potassium composition has becom e a major consideration in sizing a new recovery boiler.