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

目 次

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