Physicochemical Properties of Bamboo Charcoal Prepared from China-grown Bamboo (Phyllostachys pubescens)

중국산 죽순대(모죽)로부터 제조한 대나무 숯의 이화학적 특성

  • 문성필 (전북대학교 농과대학 산림과학부) ;
  • 구창섭 (전북대학교 유기신물질공학과) ;
  • 박상범 (임업연구원 남부임업시험장) ;
  • 권수덕 (임업연구원 남부임업시험장)
  • Published : 2003.06.01

Abstract

Three different aged Chinese bamboo (Phyllostachys pubescense; 3, 5, and 7 years) was carbonized using three different types of kilns (special, improved and simple kiln) and their physicochemical charcoal properties were investigated. The fixed carbon of the bamboo charcoal prepared from the special kiln (800 - $1,000^{\circ}C$) tended to be decreased, while the specific surface area tended to be increased, according to the increase of bamboo ages. The bamboo charcoal prepared from the 5-year-aged showed the highest value in iodine value. In the improved kiln (600 - $700^{\circ}C$), the specific surface area and the iodine value increased with the growth period. In the simple kiln (400 - $500^{\circ}C$), the amount of volatile matter of the bamboo charcoal was approximately two times higher than that obtained from the special and improved kilns. Despite of the high amount of volatile matter in the simple kiln, the fixed carbon was more than 80%. The 5-year-aged bamboo charcoal showed the highest levels in specific surface area and iodine value. The physical properties of the bamboo charcoals prepared from the 3- and 5-year-aged Chinese bamboo were relatively worse those of Korean bamboo of the same ages. It was probably thought caused by less dense structure of the Chinese bamboo of 3- and 5-year-aged than the domestic in morphological aspects.