Decomposition and Calcination Characteristics of Calcium-Enriched Bio-oil
Calcium-Enriched Bio-oil(CEB), the product of the reaction of limestone and bio-oil, had high desulfurization efficiency and certain denitration efficiency simultaneous. Calcining experiment carried out using the thermogravimetric analysis (TGA) system showed that the processes could divide into three stages, The moisture precipitated mainly in the first stage, organic gases precipitated at the temperature of 300～460℃, and the decomposition rate reached the maximum value at temperature of 400℃. The mass lost in the second stage was about 50％. The final stage was the decomposition of calcium carbonate at 690℃ about. Carbon dioxide had significantly inhibitory effect on CaCO3 decomposition below 920℃. CaCO3 decomposed to CaO until the carbon dioxide equilibrium partial pressure above the atmospheric operating pressure at high temperature of 920℃ above. The decomposition rate increased with heating rate. Pore structure analysis indicated that the CaO particles obtained from CEB had excellent pore structure characteristics.
Calcium-Enriched Bio-oil Limestone Calcination Pore structure
Mou Zhang Hart-ping Chen Xian-hua Wang Hai-ping Yang Shi-hong Zhang
State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan,430074,P. R. China
国际会议
广州
英文
1206-1211
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）