Bio-energy characteristics of black pine (Pinus nigra Arn.) hydrodistillation waste products

The present study aimed to investigate the physicochemical and energy characteristics of Pinus nigra Arn. (Pinaceae family) coniferous biomass used after production essential oil. biomass, comprised needles with twigs, was milled subjected sieve analysis, thus producing three groups particle fractions (between 384 413 μm). infrared spectrum recorded as 4000–400 сm–1. results from revealed significant differences in phytochemical composition. Particle were characterized terms moisture content (7.10-7.95%), ash (1.96-2.89%), cellulose (21.30-29.20%), total chlorophyll (225.54-896.04 μg/g), carotenoids (23.52-145.43 polysaccharides (0.14-2.06%). basic indices assessment potential conditional fuel calculated follows: calorific value (16748.79-16877.86 kJ/kg), density wood (390.99-421.17 kg/m3), heat equivalent (0.224-0.243 J/m3).