活性炭纤维吸附去除甲苯综合性实验

摘要

选用市售的2种活性炭纤维样品作为吸附剂,在模拟甲苯废气环境中进行了甲苯吸附实验.结果表明：4．9988 g活性炭纤维1＃在甲苯的进气质量浓度为6079 mg/m3时,吸附达到平衡的时间为40 min,甲苯吸附容量为41．85 mg/g；1．7035 g活性炭纤维2＃在甲苯的进气质量浓度为2718 mg/m3时,吸附达到平衡的时间为20 min,甲苯吸附容量为30．90 mg/g.该实验涉及到实验装置的调校、气相色谱仪的使用和表面吸附理论,而且针对生活中的环境问题,能激发学生的实验兴趣,可作为环境类专业的综合实验,巩固学生的理论知识,培养学生的实践能力和创新能力.%Two kinds of activated carbon fiber bought from market were used as adsorptive.The toluene adsorption experiments were carried out in the environment of simulating toluene.The result showed that equilibrium adsorption was established within 40 min,the adsorption capacity reached 41.85mg/g when the initial toluene concentration was 6079mg/m3 and the weight of activated carbon fiber 1# was 4.9988g.For activated carbon fiber 2#,equilibrium adsorption time was 20min,and the adsorption capacity was 30.90mg/g, when the initial toluene concentration was 2718mg/m3 and the weight of activated carbon fiber was 1.7035g. This experiment involves equipment adj usting,gas chromatograph using and theories of surface adsorption,and aiming at environmental problem in life,it can be used as a comprehensive experiment for students being in environment major,which is beneficial to strengthen students ’ theoretical knowledge and improve their practical and innovative ability.