Fundamental studies of drying, combustion and ash properties of biomass and impacts of pulp and paper mill operations

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Pulp and paper mills in Canada require large amounts of high pressure steam and electric power to operate. About two-thirds of the energy required is supplied by burning the concentrated black liquor (spent pulping liquor) in recovery boilers. The remaining is from biomass boilers, known conventionally as hog-fuel boilers, and from local utility stations. Biomass boilers provide pulp and paper mills with a means of addressing high energy and waste disposal costs. In order to remain competitive on the global market and to meet increasingly stringent environmental regulations, mills need to optimize operations to maximize the energy production of their biomass boilers, while minimizing the environmental impact associated with combustion. This 4-year collaborative research and development program is aimed at obtaining fundamental data on drying, combustion and ash properties of biomass mixtures and to use the information to develop viable control strategies and new technologies to improve biomass boiler and mill operations. The research will be conducted at the University