PULP AND PAPER INDUSTRY

Target Energy Consumption

The target energy consumption for a new paper plant should be as below

Type of paper Writing & Printing
Type of Mill Large, integrated mill, with 100% wood
pulp based on the kraft process

Overall Norms

Steam 8.0 t/t of finished paper
Power 1300 kWh/t of finished paper
Water 100 m3/t of finished paper

Specific steam consumption break-up (t/t of finished paper)

Section / Equipment Electrical energy consumption
(in units / ton of Paper)
Pulping & washing 0.9

Bleaching
0.3

Black Liquor Evaporation
2.0

Chemical recovery boiler
0.8

Recausticising & Lime kiln
0.5

Paper machine
1.9

Deaerator

1.4
Miscellaneous
0.2
Total 8.0

Specific Power consumption break-up (kWh / t of finished paper)

Chippers 10

Digester house
55

Washing and Screening
105
Bleaching plant
105

Stock preparation + Paper
Machine + Finishing
575

Power boilers
170

Intake well + Water treatment
plant

60

Recovery (Evaporator, recovery
boiler, causticisers and lime
kiln)

100
Effluent treatment plant
 70
Lighting and workshop
etc.
50
Total 1300


Introduction

Specific water consumption break-up
Raw material preparation
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