Hasanudin, W. R. Asri, Tri Eltiyah Muthiarani, David Bahrain, F. Hadiah
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引用次数: 2
摘要
本研究以甘蔗沸石磺化碳为催化剂,通过响应面法和中心复合设计对污泥棕榈油(SPO)的游离脂肪酸(FFA)酯化反应进行了优化。考察了沸石与磺化碳催化剂质量比的影响。结果表明,沸石与磺化碳的质量比为1:3 (% w/w)时,催化剂的酸性值最高,为10.80 mmol g -1,可用于进一步酯化优化。FTIR和EDX分析证实了复合催化剂的磺化基团的存在。13c核磁共振分析表明,酯化反应成功生成酯类化合物。结果表明:反应温度78.98℃,反应时间119.97 min,催化剂质量2.97 g, FFA转化率为94.19%,模型具有统计学显著性。催化剂的可重复使用性研究表明,该催化剂的催化性能略有下降,第四次循环后转化率可达80.00%。本研究为甘蔗沸石-磺化碳催化剂用于FFA从SPO转化为高价值酯产品的潜力提供了早期信息。
ESTERIFICATION OF FREE FATTY ACID FROM SLUDGE PALM OIL USING ZEOLITESULFONATED CARBON FROM SUGAR CANE CATALYSTS
In this research, the zeolite-sulfonated carbon from sugar cane catalyst has been employed for the free fatty acid (FFA) esterification in sludge palm oil (SPO) optimised by response surface methodology and central composite design. The effect of the catalyst weight ratio of zeolite to sulfonated carbon was evaluated. The result showed that the catalyst with a weight ratio of zeolite to sulfonated carbon of 1:3 (% w/w) had the highest acidic value of 10.80 mmol g –1 and was used for further esterification optimisation. FTIR and EDX analysis affirmed the existence of a sulfonated group of the composite catalysts. The 13 C NMR analysis showed that the esterification successfully produced an ester compound. The optimum conditions for FFA conversion were acquired at a reaction temperature of 78.98°C, a reaction time of 119.97 min, a catalyst weight of 2.97 g, with 94.19% FFA conversion, and followed by a statistically significant model. The catalyst reusability study revealed that the catalyst had a slight decrease in catalyst performance and could generate up to 80.00% conversion after the fourth cycle. This study could bring forth early information about the potential of zeolite-sulfonated carbon from sugar cane catalyst for FFA conversion from SPO into high-value ester products.
期刊介绍:
JOURNAL OF OIL PALM RESEARCH, an international refereed journal, carries full-length original research papers and scientific review papers on various aspects of oil palm and palm oil and other palms. It also publishes short communications, letters to editor and reviews of relevant books. JOURNAL OF OIL PALM RESEARCH is published four times per year, i.e. March, June, September and December.