亚超临界水中蓝藻的热化学液化

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40 min,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GCMS、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...

Thermochemical Liquefaction of Cyanobacteria in Sub- and Super-critical Water

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.