Page 106 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Chapter 5

Pulp and paper

5.1 Recovery boiler

Design features:
A chemical and heat recovery boiler for the pulp and paper industry: Con-
centrated black liquor and combustion air are introduced into the furnace
where heat is recovered as steam for electricity generation and process heat-
ing, and the inorganic portion of the black liquor is recovered as sodium
compounds.

Liquor processing capacity:
To 10,000,000lb/day; (4500t/day) dry solids
Steam pressure:
To 1850psi (12.6 map) design
Steam temperature:
To 950°F (510°C)
Fuel:
Pulp mill liquor

5.2 Reheat recovery boiler

Design features:
A chemical and heat recovery boiler for the pulp and paper industry with
reheat and optional dual pressure configuration to improve lower furnace
corrosion protection.
Steam pressure:
To 2600psi (17.9 map)

Steam temperature:
To 950°F (510°C)
Fuel:
Pulp mill liquor

Industrial Process Plant Construction Estimating and Man-Hour Analysis.
https://doi.org/10.1016/B978-0-12-818648-0.00005-3
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