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                                        Energy Consumption norms

The pulp and paper is highly energy intensive industry. The energy consumption of the pulp and paper industry is worth Rs. 15000 million, equivalent to 27 * 106 Giga Cals/Year. (As on 2000-01)

The overall specific energy consumption norms, for large integrated paper plants, producing writing and printing paper, using 100% wood pulp based sulphate process, should be as follows:

• Steam: 8.00 tons/ton of finished paper
• Power: 1300 kWh/ton of finished paper
• Water: 100 m3/ton of finished paper

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

Section	Steam (t/t)
Pulping & washing Bleaching Black Liquor Evaporation Chemical recovery boiler Recausticising & Lime kiln Paper machine Deaerator Miscellaneous	0.9 0.3 2.0 0.8 0.5 1.9 1.4 0.2
Total	8.0

Specific power consumption break-up (kWh/ton of finished paper):

Section	Power (kWh/t)
Chippers Digester house Washing and Screening Bleaching plant Stock preparation + Paper machine + Finishing Power boilers Intake well + Water treatment plant Recovery (Evaporate, recovery boiler, causticisers and lime kiln) Effluent treatment plant Lighting and workshop etc.	10 55 105 105 575 170 60   100 70 50
Total	1300

Specific water consumption break-up (100 m3/t of finished paper):

Section	Water (m3/t)
Pulp Mill Paper machine Boilers including Water Treatment and cooling tower Chemical recovery area Miscellaneous	30 20 30 10 10
Total	100

Services offered by Forbes / Spirax Marshall Ltd., Pune

Especially for the paper industry Forbes / Spirax Marshall provides these Services:

• Boiler House Audit
• Paper Machine Audit
• Plant Audit
• Engineering
• Training

For further Information please go to our Training or Energy Audits page or contact Spirax. Our representative would be eager to help you out.

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