滇池藻水热液化成油特性研究

以滇池藻为原料研究水热液化条件对其液化反应的影响，并分析反应温度对水热液化产物分布及生物油特性的影响。结果表明：在反应温度300℃、反应时间60 min、原料含固率20%条件下生物油产率最高为14.82%，生物油能量回收率最高为54.11%，碳、氢元素回收率分别为49.65%、24.83%，其热值为35.79 MJ/kg。GC-MS分析结果显示：生物油含烃类22.4%，有机酸类34.3%，氮氧化合物21.1%，酯类5.47%。反应温度对生物油组分中含氮氧杂环化合物、酯类、有机酸类、烃类以及酚类化合物GC含量变化有很大影响。反应温度为380℃时转化率最高为83.87%，生物油H/C最高，N/C最低，比值分别为1.39和0.05，热值为36.76 MJ/kg。

Characteristics of Bio-crude Oil from Hydrothermal Liquefaction of Algae in Dianchi Lake

Bio-crude oil was produced from algae in Dianchi lake by hydrothermal liquefaction. The effects of process parameters on the reaction of hydrothermal liquefication and the effects of reaction temperature on the product distribution of hydrothermal liquefication and characteristics of bio-crude oil were analyzed.The highest bio-crude yield of 14.82% was obtained at reaction temperature 300 ℃, reaction time 60 min and the mass fraction of solid in raw material 20%. The highest energy recovery was 54.11%, the carbon recovery and hydrogen recovery were 49.65% and 24.83%, and the HHV of bio-crude oil is 35.79 MJ/kg. The results of GC-MS analysis mainly showed that the hydrocarbons, organic acids, nitrogenoxides and esters were 22.4%, 34.3%, 21.1% and 5.47%. The reaction temperature had great effecs on the GC content changes of nitrogenoxides, esters, organic acids, hydrocarbons and phenols in bio-crude oil components. The highest H/C and the lowest N/C of bio-crude oil were respectively 1.39 and 0.05, the highest conversion efficiency of 83.87% was obtained at 380 ℃ and the HHV was 36.76 MJ/kg.