Department of Chemistry, University of Science and Technology of China, Hefei, PR China.
Bioresour Technol. 2011 Feb;102(3):3471-9. doi: 10.1016/j.biortech.2010.10.135. Epub 2010 Nov 3.
Fast pyrolysis of three wetland plants (Alligator weed, Oenanthe javanica and Typha angustifolia) in a vertical drop fixed bed reactor was investigated in this study. The experiments were carried out at different pyrolysis temperatures, and the maximum bio-oil yields achieved were 42.3%, 40.2% and 43.6% for Alligator weed, Oenanthe javanica and Typha angustifolia, respectively. The elemental composition of the bio-oil and char were analyzed, and the results show that a low temperature was appropriate for the nitrogen and phosphorus enrichment in char. GC-MS analysis shows that nitrogenous compounds, phenols and oxygenates were the main categories in the bio-oil. A series of leaching tests were carried out to examine the recovery of the nitrogen and phosphorus in the char, and the results indicate that significant fractions of nitrogen and phosphorus could be recovered by leaching process.
本研究在垂直下落固定床反应器中对三种湿地植物（水葫芦、蕹菜和芦苇）进行快速热解。实验在不同的热解温度下进行，水葫芦、蕹菜和芦苇的最大生物油产率分别达到 42.3%、40.2%和 43.6%。分析了生物油和焦的元素组成，结果表明低温有利于焦中氮和磷的富集。GC-MS 分析表明，含氮化合物、酚类和含氧有机物是生物油中的主要类别。进行了一系列浸出试验以检查焦中氮和磷的回收情况，结果表明浸出过程可以回收大量的氮和磷。
