负载型海绵状介孔碳的制备及其对硫化氢的吸附研究

摘要针对采用传统负载型吸附材料处理硫化氢气体过程中面临的活性物种分散性差、传质慢等问题，本文开展海绵状载铜有序介孔碳材料的制备、结构表征及其对硫化氢气体的吸附性能研究。通过软模板-浇铸法制备了海绵状微孔碳和海绵状介孔碳，并采用浸渍法负载铜制备吸附剂。采用 XRD、TEM、SEM、N2-吸附脱附、TPR、XPS 等对载体和吸附剂的结构性能进行表征和评价，并在固定化反应器上研究吸附剂脱硫性能。结果显示：通过软模板-浇铸法成功制备了比表面积相当的具有微孔-介孔分布的海绵状介孔碳(623 m2/g)和微孔为主的海绵状微孔碳(509 m2/g)；与以微孔为主的海绵碳相比，具有微孔- 介孔结构的海绵碳材料更利于活性物种的分散(30。91%)，有效抑制了粒径的生长(20nm)；相比于海绵状微孔碳，铜物种具有更高分散度的海绵状介孔碳对硫化氢的吸附及防护性能更佳，防护时间是海绵状微孔碳的 12 倍。76153

毕业论文关键词硫化氢，海绵状碳，铜，分散度，穿透曲线

毕业设计说明书外文摘要

Title Preparation of supported mesoporous carbon foam for hydrogen sulfide removal

Abstract

Focus on the problem of the traditional hydrogen sulfide adsorbent, such as activated carbon, present the mainly microporous structure, which would obstacle the mass transfer and decrease the dispersion。 Here we synthesized the mesopore carbon foam which was prepared via the impregnation of copper, characterized and carried out the adsorption performance for hydrogen sulfide of the materials。 Mesopore carbon foam and micropore carbon foam were synthesized through soft template-casting method。 The adsorbent was prepared via the impregnation of copper。 The obtained materials were characterized by XRD, TEM, SEM, nitrogen adsorption-desorptio n, TPR and XPS。 The adsorption performance for hydrogen sulfide was carried out on the immobilized adsorption reactor。 The results show that:

Mesopore carbon foam(623 m2/g) and micropore carbon foam(509 m2/g) with considerable specific surface area were successfully prepared through soft template-casting method; compared with micropore carbon foam, mesopore carbon foam presents the distribution of micropore- mesopore, which is more conducive to the dispersion of active species(30。91%) and effective ly inhibit the growth of particle size(20nm); mesopore carbon foam with higher dispersion of copper exhibited larger adsorption capacity and better protective performance for hydrogen sulfide

comparing with micropore carbon foam，the protective time of mesopore carbon foam is about

12 times than micropore carbon foam。

Keywords hydrogen sulfide, carbon foam, copper, dispersion, breakthrough curve

本科毕业设计说明书第 I 页

1 绪论 1

1。1 硫化氢及其危害 1

1。2 治理措施 1

1。3 有序介孔材料 2

1。4 有序介孔碳制备负载型海绵状介孔碳的制备及其对硫化氢的吸附研究:http://www.youerw.com/huaxue/lunwen_87280.html