Abstract

A techno-economic study of the utilization of Eastern Canadian coal in steam production using atmospheric fluidized bed combustion (AFBC) is presented. An industrial-scale AFBC boiler, located at Summerside PEI, Canada, was modelled using the ASPEN/SP (advanced system for process engineering) process simulator. ASPEN/SP heat and material balance predictions were within 10% of plant measurements. A sensitivity analysis showed that the combustion air flowrate has the greatest effect on the predicted carbon burnout. An economic sensitivity analysis shows that the plant's economic viability versus electric heating is extremely sensitive to the price of the electricity. Rising electricity prices make this plant more attractive.

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