- An Energy Benchmarking Perspective

D.W. Francis, M.T. Towers and
T.C. Browne Pulp and PaperResearch Institute of Canada (Paprican)

TABLE OF CONTENTS

• INTRODUCTION
• THE MODEL KRAFT MARKET PULP MILL

• Conveying Chips
• Digester
• Washing and Screening
• Oxygen Delignification
• Bleaching
• Pulp Machine
• Black Liquor Evaporation
• Power Plant
• Lime Kiln and Recausticizing
• Hot Water System
• Waste-Water Treatment
• Miscellaneous
   

• ENERGY CONSUMPTION IN EXISTING AND MODEL KRAFT MARKET PULP MILLS

• THE MODEL NEWSPRINT MILL

• Thermomechanical Pulp Mill
• Recycled Fibre Mill
• Paper Machine
• Effluent Treatment
• Integrated Newsprint Mill
   

• ENERGY CONSUMPTION IN EXISTING AND MODEL NEWSPRINT MILLS

• ENERGY COST REDUCTION IN EXISTING MILLS

• Management Overview
• Process Analysis and Energy Optimization
• Processes and Process Equipment
• Energy Purchasing Strategies
• Project Identification and Selection
• Continuous Performance Monitoring and Improvement
   

• CONCLUSION

• REFERENCES

• LIST OF FIGURES

• Figure 1. Process steam consumption – kraft mills
• Figure 2. Process electricity consumption – kraft mills
• Figure 3. Purchased fossil fuel demand – kraft mills
• Figure 4. Net electricity demand – kraft mills
• Figure 5. Process steam consumption – newsprint mills
• Figure 6. Process electricity consumption – newsprint mills
• Figure 7. Purchased fossil fuel demand – newsprint mills

• LIST OF TABLES

• Table I. Modern Kraft Market Pulp Mill – Steam and Electricity Consumption
• Table II. Modern Kraft Market Pulp Mill – Steam and Electricity Generation
• Table III. Modern Kraft Market Pulp Mill – Purchased Energy Required
• Table IV. TMP Mill – Steam and Electricity Consumption
• Table V. Newsprint Paper Machine – Steam and Electricity Consumption
• Table VI. Modern Newsprint Mill – Steam and Electricity Consumption
• Table VII. Modern Newsprint Mill – Energy Consumption