摘要
采用后合成法制备了具有微介孔结构的ZSM-5-SBA-15复合分子筛,以其为吸附剂进行了脱除碱性氮的动力学实验,并采用3种典型的吸附动力学数学模型进行了模拟计算。结果表明:吸附过程以液膜控制为主,拟二级动力学模型较好描述碱性氮化物在ZSM-5-SBA-15复合分子筛的吸附情况;吸附脱氮的表观吸附活化能E=13.92 kJ/mol,吸附过程为化学吸附。
ZSM-5-SBA-15 composite molecular sieve was synthesized by hydrothermal post-synthesis method..Three typical adsorption kinetic mathematical models were applied to fit the denitrogenation experiment.show that the adsorption kinetics of basic nitrogenous compounds on ZSM-5-SBA-15 composite molecular sieve the Quasi-second-order dynamics modelmainly the liquid film control mechanism.Its apparent adsorption activation energy was calculated to be E=13.92 kJ/mol and the adsorption process was determined chemical adsorption.
作者
郑子苹
沈健
邓桂春
Zheng Ziping;Shen Jian;Deng Guichun(Hainan College of Vocation and Technique,Haikou 570100,Hainan,China;Quanzhou Vocational and Technical University,Quanzhou 362268,Fujian,China)
出处
《精细石油化工》
CAS
2022年第5期48-51,共4页
Speciality Petrochemicals
关键词
复合分子筛
吸附脱氮
吸附动力学
回归分析
数学模型
composite molecular sieve
adsorption denitrogenation
adsorption kinetics
regression analysis
mathematic model
