Influences of mineral matters on biomass pyrolysis characteristics

摘要: Mineral matters have great influences on biomass pyrolysis.To understand these,pyrolysis of sample,peanut shell,was carried out using thermogravimetric analysis with washing and salt adding samples.The original sample was washed 5% acids(H2SO4,HCl) distilled water,respectively.Inorganic compounds in pretreated samples were examined ICP-AES.The catalysis effects alkaline pyrolysis characteristics analyzed K2CO3 dolomite(CaCO3·MgCO3) addition.The results show that acid wash can decrease the concentration cations biomass,enhance mass loss rate pyrolysis,and shifts to higher temperature.Alkaline addition promote at lower temperature.