The State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, PR China.
Bioresour Technol. 2012 Jun;113:19-22. doi: 10.1016/j.biortech.2011.10.103. Epub 2011 Nov 11.
A continuous biodiesel production from the transesterification of soybean oil with methanol was investigated in a fixed bed reactor packed with D261 anion-exchange resin as a heterogeneous catalyst. The conversion to biodiesel achieved 95.2% within a residence time 56 min under the conditions: reaction temperature of 323.15K, n-hexane/soybean oil weight rate of 0.5, methanol/soybean oil molar ratio of 9:1 and feed flow rate of 1.2 ml/min. The resin can be regenerated in-situ and restored to the original activity to achieve continuous production after the resin deactivation. The product obtained was mainly composed of methyl esters. No glycerol in the product was detected due to the resin adsorbing glycerol in the fixed bed, which solved the issue of glycerol separation from biodiesel. It is believed that the fixed bed reactor with D261 has a potential commercial application in the transesterification of triglyceride.
采用 D261 阴离子交换树脂作为非均相催化剂，在固定床反应器中进行了从大豆油与甲醇的酯交换连续生产生物柴油的研究。在反应温度为 323.15K、正己烷/大豆油重量比为 0.5、甲醇/大豆油摩尔比为 9:1 和进料流速为 1.2ml/min 的条件下，停留时间为 56min 时，转化率达到 95.2%。树脂可以原位再生，并在树脂失活后恢复到原始活性，以实现连续生产。所得产物主要由甲酯组成。由于树脂在固定床中吸附甘油，产物中未检测到甘油，从而解决了从生物柴油中分离甘油的问题。相信 D261 固定床反应器在甘油三酯的酯交换反应中具有潜在的商业应用前景。
