ENERGY PROPERTIES OF MULTIFLORA ROSE (ROSA MULTIFLORA THUNB.) AND ENVIRONMENTAL BENEFITS FROM THE COMBUSTION OF ITS BIOMASS

摘要

The article presents the results of a study on multiflora rose, one of the energy crop plants. The yield of aerial parts was determined in a field experiment, and the calorific value and chemical composition of the biomass were determined in laboratory tests. The results were used to calculate the amount of hard coal that can be replaced by multiflora rose biomass and the air pollution emissions from combustion of coal and multiflora rose. Combustion of multiflora rose biomass from an area of 1 ha in place of hard coal with equivalent energy value was found able to reduce emissions of SO₂ by 98.9%, NO₂ by 27.8%, particulates by over 18% and CO by 8.5%. The actual CO₂ emissions from biomass combustion proved somewhat higher than in the case of coal; however, carbon dioxide emitted into the atmosphere during combustion of plant biomass is equal to the amount taken in by the plants during their growing period. Therefore the CO₂ emissions are considered to be zero.