在T型微反应器中进行气态SO₃磺化十二烷基苯（DDB）的研究。考察了反应温度、SO₃/DDB摩尔比、SO₃体积分数、SO₃/干燥空气混合气流量等磺化参数对十二烷基苯磺酸（DBSA）收率的影响。经过对实验条件进行优化，在反应温度为60℃、SO₃体积分数为4%、SO₃/DDB摩尔比为1.2、SO₃/干燥空气混合气流量为400 mL/min的条件下，DBSA收率可达94.57%。结果表明，T型微反应器是一种能够适用于DDB气液磺化过程的新型磺化反应器，为气液磺化实现柔性生产提供了新的思路。

The sulfonation of dodecylbenzene (DDB) with SO₃ gas is studied in a T-type microreactor.The effects of sulfonation parameters such as reaction temperature,the molar ratio of SO₃/DDB,the volume fraction of SO₃ and the flow rate of SO₃/dry air mixture on the yield of dodecylbenzene sulfonic acid (DBSA) are investigated.The yield of DBSA can reach 94.57% under the optimal reaction conditions that reaction temperature is 60℃,the volume fraction of SO₃ is 4%,the molar ratio of SO₃/DDB is 1.2 and the flow rate of SO₃/dry air mixture is 400 mL·min^-1.Experimental results show that T-type microreactor can be applied to the gas-liquid sulfonation process of DDB,which provides a new idea for gas-liquid sulfonation.

冯海波(1995-),男,硕士研究生,研究方向为微反应器设计及优化,1846154371@qq.com