Global Energy Savings and Environmental Effect of New Thermomechanical Pulping Technologies, 2003 Fall Technical Conference
Significant opportunities are available to reduce the energy consumption of thermomechanical pulping. New
technologies combining chip pretreatment and high-intensity refining conditions can use upwards of 500 kWh/ton
less energy compared to conventional thermomechanical pulping methods. The savings in electrical energy for a
1000 ton/day TMP plant can exceed 6 million USD annually. Significant reductions in environmental emissions are
available when reducing the power requirements of thermomechanical pulping. Annual reductions in greenhouse gas
emissions can easily exceed 100,000 tons for a modest sized TMP plant using low-energy technologies. Local
regulations on air emissions and restrictions on power consumption at pulp and paper mills will continue to
influence the design of thermomechanical pulping plants.