泡桐水中直接液化制取生物油的实验研究

Experimental Research on the Direct Liquefaction of Paulownia in Water to Make Bio-oil

以水为溶剂，Na2CO3为催化剂，在1L高压釜中对泡桐直接液化制取生物油。实验结果表明，在原料量80g，水480mL，催化剂用量5％，搅拌速率300r／min，停留时间5～10min，液化温度为300～315℃的条件下得到了较佳的液化效果，生物油总产率可达到60％以上，残渣率可降至2％以下。

The bio-oil was prepared by direct liguefaction of paulownia with water as solvent and Na2CO3 catalyst in a 1 L high pressure reactor. The experimental result showed that the optimal condition for liquefaction was 50 g of raw material,480 mL of water,5 % of catalyst,330 r/min of stirring rate, 5-10 min of reaction time, and 300-315 ℃ of liquefaction temperature. The total yield of bio-oil could be over 60 % and the char yield could be below 2 %.