摘要本文基于催化剂对废旧纺织物的催化裂解特性影响的研究,在国内外已有的催化剂催 化裂解研究的内容的基础上,围绕废旧纺织物的催化裂解特性展开研究,并对不同废旧 纺织物裂解后的产物进行进一步研究。研究发现,在不同含量的 ZnO 催化剂催化效果下, 5%ZnO 催化剂效果最佳,其次研究了温度对废旧纺织物在不加催化剂、5%ZnO 催化剂和5%Zn-Fe 复合催化剂条件下的影响,发现转化率随着温度的升高而升高,同时催化剂加 大了转化率,再次分析了废旧纺织物在上述三种条件下的动力学分析,得到反应所需的 活化能分别为 108。06kJ/mol、61。43kJ/mol 和 57。125kJ/mol,即 Zn-Fe 复合催化剂相比于 5%ZnO 催化剂有较好的催化效果,最后对不同种类的废旧纺织物催化裂解之后的产物进 行分析,分析其气相和液相产物,并对反应前后催化剂进行 SEM、XRD 分析。79506
毕业论文关键词 废旧纺织物、裂解、复合催化剂、反应动力学
毕 业 设 计 说 明 书 外 文 摘 要
Title Catalytic pyrolysis characteristics of waste fabric research
Abstract Based on the research of how catalyst influences waste textile fabrics on their catalytic cracking properties, this paper focuses on the catalytic cracking properties of waste textile fabrics on account of relevant domestic and foreign researches, then conducts further study on their pyrolysis products。 The study finds that, 5%ZnO possesses the best catalytic effect with variable content of ZnO; Meanwhile, respectively considering non-catalyst, 5%ZnO and 5%Zn-Fe composite catalyst, the influence of temperature on waste textile fabrics has been studied, which
finds that conversion rate grows with temperature,when catalyst improves conversion rate。
Reanalyzing the dynamic characteristics of waste textile fabrics with those three conditions above, the activation energy of 108。06kJ/mol,61。43kJ/mol and57。125KJ/mol could be obtained, which means the composite catalytic Zn-Fe has better effect compared with previous 5% ZnO。 Finally the article analyzes the pyrolysis products of different types of waste textile fabrics, besides their gaseous and liquid products, The catalyst was analyzed through SEM and XRD before and after the reaction。
Keywords waste fabric,Cracking, composite catalyst, the reaction kinetics
本科毕业设计说明书 第 I 页
目 录
1 绪论 1
1。1 引言 1
1。2 催化裂解原理 1
1。3 国内外催化裂解研究现状 2
1。3。1 国内现状 2
1。3。2 国外现状 3
1。4 本文工作背景及研究内容 5
2 废旧纺织物催化裂解实验 6
2。1 实验设备与仪器 6
2。2 实验材料 7
2。3 实验过程 7
2。3。1 Fe-Zn 复合催化剂的制备