利用扩孔活性炭聚苯胺并磺化制备氮掺杂碳基固体酸（HSO₃-PAHAC），并将其用于催化大豆油与甲醇酯交换反应制备生物柴油。实验表明，用氢氧化钾对宁夏当地太西煤活性碳扩孔，得到高比表面积活性炭（HAC），进而使聚苯胺负载在HAC上，并磺化制得新碳基固体酸HSO₃-PAHAC，酸值为1.84 mmol/L；用该催化剂制备生物柴油，当油醇质量比为1∶6，固体酸催化剂的质量为大豆油质量的2%、在180℃下反应4 h生物柴油收率为99.1%，催化剂重复使用了6次，收率为90.0%。

Polyaniline supported on high specific surface area activated carbon (HAC) is sulfonated by HSO₃⁺ to prepare N-doped carbon-based solid acid (HSO₃-PAHAC). The prepared HSO₃-PAHAC is used as catalyst for the production of biodiesel via the ester exchange reaction between soybean oil and methanol. According to the experiment results, HAC can be obtained by using potassium hydroxide to expand pores of the activated carbon based on local coal in Taixi of Ningxia. Then polyaniline is supported on the obtained HAC, which is further sulfonated into novel carbon-based solid acid HSO₃-PAHAC with an acidic value of 1.84 mmol·L^-1. The yield rate of biodiesel reaches 99.1% when the prepared HSO₃-PAHAC is used as catalyst for the production of biodiesel, the mass ratio of soybean oil to methanol is 1:6, the dosage of HSO₃-PAHAC catalyst is 2% that of soybean oil, the temperature is 180℃ and reaction time is 4 hours. After the catalyst has been used for 6 times, the yield of biodiesel stays 90% above.

徐泽杨(1991-),男,硕士研究生,研究方向为绿色有机催化方法学研究,709863358@qq.com。