碳基固体酸催化剂的制备及其催化合成生物柴油的性能研究  

Preparation of Carbon based Solid Acid Catalysts and Study on Their Catalytic Performance in Synthesizing Biodiesel

作　　者：孟小雷 Meng Xiaolei(Sichuan Zhongwang Safety and Environmental Protection Technology Consulting Co.,Ltd.,Chengdu Sichuan 611130,China)

机构地区：[1]四川众望安全环保技术咨询有限公司,四川成都611130

出　　处：《山西化工》2024年第8期39-41,共3页Shanxi Chemical Industry

摘　　要：采用磷酸浸渍后进行炭化-磺化法,研究得到了以竹粉为代表的活性炭原料,优化合成碳基固体酸的方法。实验结果表明,以竹炭基固体酸为催化剂,在350℃,炭化时间2 h,磺化温度1 059℃,磺化时间4 h的情况下,所制备的催化剂性能最好。而该催化剂用量为10.1%(质量分数),醇酸物质的量比为10,酯化温度为65.5℃,酯化时间为2 h的酯化效率最高,可达98.2%。研究以竹粉为原料,利用生物质制备固态酸催化剂,其在生物柴油的合成中更有前景和竞争力。Activated carbon raw materials represented by bamboo powder were obtained by carbonization sulfonation method after phosphoric acid impregnation,and the method of synthesizing carbon based solid acid was optimized.The experimental results showed that the catalyst prepared using bamboo charcoal based solid acid as the catalyst exhibited the best performance at 350℃,carbonization time of 2 h,sulfonation temperature of 1059℃,and sulfonation time of 4 h.The highest esterification efficiency of 98.2%can be achieved with a catalyst dosage of 10.1%by mass,an alcohol acid molar ratio of 10,an esterification temperature of 65.5℃,and an esterification time of 2 hours.Research on using bamboo powder as raw material and biomass to prepare solid acid catalysts has more prospects and competitiveness in the synthesis of biodiesel.

关 键 词：碳基固体酸催化剂 生物柴油 竹粉 酯化反应 

分 类 号：TQ426.6[化学工程]