摘要
分别考察了反应温度、反应时间和反应物料液比对蓝藻在亚超临界水中的热化学液化效果的影响,结果表明,在反应温度为380℃,反应时间为40min,反应物料液比为1:20时,液化效果最好,总转化率和油产率分别达到94.5%和41.3%。生物油的GC-MS、元素和热值分析表明,生物油的主要成分是芳香族、吡咯和吡啶衍生物等物质,生物油的C、H元素质量分数从蓝藻原料的45.3%和6.9%增加到了58.2%和7.9%,O、N元素质量分数则从27.6%和10.0%降低到了16.6%和7.2%,热值从20.3 MJ/kg提高到28.1MJ/kg;蓝藻液化残渣的FTIR分析表明,蓝藻中有部分的粗脂肪和部分蛋白质转化成了生物油。
The effects of reaction temperature, time and solid-liquid ratio on thermochemical liquefaction of cyanobacteria were investigated in sub-and supercritical in water, respectively. The results showed that the optimum liquefaction conditions were a reaction temperature of 380℃, holding time for 40 min and solid-liquid ratio with 1 ： 20 g/ml, the total conversion and bio-oil yield were 94.5% and 41.3%. The GC- MS, elemental and heating value analysis ofbio-oil revealed that the main compositions were aromatic, pyrrole derivatives, pyridine derivatives and so on, relative to the raw cyanobacteria materials, the C, H content increased from 45.30% and 6.92% to 58.21% and 7.91%, but O, N content decreased from 27.63% and 10.02% to 16.55% and 7.20%, the heating value increased from 20.32 MJ/kg to 28.10MJ/kg. The FTIR analysis of residue revealed that bio-oil was mainly transformed from the part of protein and crude fat of cyanobacteria materials.
出处
《工业加热》
CAS
2011年第4期48-51,共4页
Industrial Heating
基金
昆明理工大学校课外科技创新基金(2010YB013)
关键词
蓝藻
亚超临界水
液化
生物油
GC-MS分析
cyanobacteria
sub- and super-critical water
liquefaction
bio-oil
GC-MS analysis
