The Physical Characteristics of Bio-oil from Fast Pyrolysis of Rice Straw
Rice straw is one of the main renewable energy sources in central and south Taiwan. In this study, bio-oil was produced from rice straw using a benchscale plant that included a fluidized bed, a char removal system, and an oil collection system using an oil-recycling spray condenser. We investigated the effects of pyrolysis temperature and carrier gas flow rate on the distribution of products and on the properties of the bio-oil obtained. Experiments were conducted at reactor temperatures of 350-500 ℃ with carrier gas flow rates of 7.5-15 L/min and a feed rate of 1 kg/h. The results indicated that the optimum reaction temperature and carrier gas flow rate for the production of bio-oil were 450 ℃ and 10 L/min, respectively. The highest percentage of bio-oil in the products in these experiments was 41.3 wt％. The pH value of the bio-oil was ~4.1 and the viscosity was ~9 cSt (at 25 ℃), depending on the storage time, temperature, and char content. This study establishes the operating parameters of a biomass fast pyrolysis system and provides some properties of rice straw bio-oil relevant to storageand use.
biomass bio-oil rice straw fast pyrolysis
Shou Yin Yang Chih Yung Wu Kun Ho Chen
Department of Power Mechanical Engineering, National Formosa University, Taiwan Department of Electro-Optical Science Engineering , Kao Yuan University, Taiwan Advanced Engine Research Center, Kao Yuan University, Taiwan
国际会议
2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)
广州
英文
881-886
2011-11-18（万方平台首次上网日期，不代表论文的发表时间）