通过催化热解预处理空棕榈果串以生产化学品。
Pretreatment of empty palm fruit bunch for production of chemicals via catalytic pyrolysis.
作者信息
Misson Mailin, Haron Roslindawati, Kamaroddin Mohd Fadhzir Ahmad, Amin Nor Aishah Saidina
机构信息
Chemical Reaction Engineering Group, Faculty of Chemical and Natural Resources Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
出版信息
Bioresour Technol. 2009 Jun;100(11):2867-73. doi: 10.1016/j.biortech.2008.12.060. Epub 2009 Feb 15.
The effect of chemical pretreatments using NaOH, H(2)O(2), and Ca(OH)(2) on Empty Palm Fruit Bunches (EPFB) to degrade EPFB lignin before pyrolysis was investigated. Spectrophotometer analysis proved consecutive addition of NaOH and H(2)O(2) decomposed almost 100% of EPFB lignin compared to 44% for the Ca(OH)(2), H(2)O(2) system while NaOH and Ca(OH)(2) used exclusively could not alter lignin much. Next, the pretreated EPFB was catalytically pyrolyzed. Experimental results indicated the phenolic yields over Al-MCM-41 and HZSM-5 catalysts were 90 wt% and 80 wt%, respectively compared to 67 wt% yield for the untreated sample under the same set of conditions. Meanwhile, the experiments with HY zeolite yielded 70 wt% phenols.
研究了使用氢氧化钠、过氧化氢和氢氧化钙进行化学预处理对空棕榈果串（EPFB）的影响，以便在热解前降解EPFB木质素。分光光度计分析证明，与氢氧化钙、过氧化氢体系中44%的降解率相比，连续添加氢氧化钠和过氧化氢可使EPFB木质素几乎100%分解，而单独使用氢氧化钠和氢氧化钙对木质素的改变不大。接下来，对预处理后的EPFB进行催化热解。实验结果表明，在相同条件下，与未处理样品67 wt%的产率相比，在Al-MCM-41和HZSM-5催化剂上酚类的产率分别为90 wt%和80 wt%。同时，使用HY沸石的实验中酚类产率为70 wt%。
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