废旧纺织物的催化气化特性研究
摘要近年来，全球每年废旧纺织品产量巨大，科学的处置废旧纺织品对于循环利用资源、促进环境保护、推进低碳生活等都有积极的意义。为得到CO2气氛下废旧纺织物裂解焦炭的催化气化特性和机理，本文利用热重分析仪选出了Fe2O3催化的最佳比例并研究了温度在800~1000℃范围内5%Fe2O3对废旧纺织物CO2气化特性的研究，通过制备Fe-Zn复合催化剂，进一步探究Zn对Fe基催化复合催化剂对实验是否有影响，用扫描电镜和XRD分析了焦炭结构特性和催化剂稳定性，用缩核模型计算气化过程的动力学分析。结果表明，Fe2O3的含量为5%时催化效果最好，复合催化剂的催化效果好于单催化剂且催化剂在气化反应前后特性不变，其中Fe-Zn和Fe2O3活化能分别为84。69kJ/mol和89。04kJ/mol。83121
毕业论文关键词： CO2气化 复合催化剂 废旧纺织物 动力学分析
毕业设计说明书外文摘要
Title Catalytic gasification characteristics of waste textiles
Abstract Recently,waste textiles have a huge production every year during the whole world。Dealing textiles in a scientific way has a positive significance for recycling of resources, promoting environmental protection and living a low-carbon lifestyle。 In order to obtain the characteristics of catalytic gasification of waste textiles char under CO2 atmosphere,we used TGA experimental method to study the Fe2O3 catalytic performance for CO2 gasification of waste textiles chars during 800~1000℃ to select the best proportion of Fe2O3。In order to prepare Fe-Zn composite catalyst and find out whether Zn has the negative influence on Fe catalytic effect, SEM and XRD are used to analyze the structure characteristics and the stability of catalyst。Also core model is used for kinetic analysis of gasification process。The results indicate that 5% of Fe2O3 shows the best catalytic performance。While the composite catalyst containing more Zn-additive shows better catalytic performance than single catalyst。Moreover the characteristic doesn’t change before and after the gasification reaction。And the activation energy for the gasification reaction is 84。69kJ/mol and 89。04kJ/mol respestively while Fe-Zn and Fe2O3 are used as the catalysis。
Keywords CO2 gasification combined catalyst Waste textiles kinetic analysis
目 录
1 引言 2
1。1 课题研究背景 2
1。2 废旧纺织物的回收再利用 3
1。2。1 机械分解回收 3
1。2。2 水解再利用 3
1。2。3 熔融再利用 3
1。2。4 高温分解 4
1。2。5 燃烧热能 4
1。3 废旧纺织物气化技术 4
2 实验部分 8
2。1 实验材料 8
2。2 实验设备与仪器 8
2。3 实验方法 9
2。3。1 Fe-Zn复合催化剂的制备 9
2。3。2 热重实验过程