论文总字数：17561字

摘 要

副产物氯化氢难处理的问题严重困扰着相关涉氯化工产业的发展。氯化氢催化氧化制氯是实现氯资源循环利用的有效途径，此过程是高温下的放热可逆反应，且体系气氛具有强腐蚀性。

本实验采用光滑单管来进行氯化氢氧化实验，同时加入适量催化剂，通过改变单管内结构例如：加毛刺单管流化床 半段毛刺单管流化床 全毛刺单管等进行实验。通过不同条件下的反应得出相应的关系，例如空时和氯化氢转化率的关系，氯氧比与氯化氢转化率之间的关系等。实验过程中通过改变氧气与氯化氢进料流量，待反应温度升至430℃后，在三通管处进行取样，取样时将产物气体通入200ml碘化钾溶液1MIN。然后采用硫代硫酸钠溶液以及氢氧化钠溶液进行滴定，继而算出氯化氢的流量以及转化率。

关键词：氯化氢 催化剂 转化率 取样 滴定

Strengthening of the fluidized bed process for the oxidation of hydrogen chloride

Abstract

Catalytic oxidation has been recognized as the best way to recycle chlorine from byproduct HCl, which is a growing serious problem faced in chlorine related industry. HCl oxidation is a reversible and exothermic reaction, and the system is at a strong corrosive atmosphere.

We use the smooth tube for the hydrogen chloride oxidation experiments while add proper amount of catalyst.Then we change the tube structures such as burr single fluidized bed half,burr single fluidized bed and burr tube etc.We obtain some conclusion under different conditions,such as the relationship between space-time and the conversion of hydrogen chloride,the relationship between the oxychloride ratio and the conversion of hydrogen etc.In this experiment,we change the feed flow of the hydrogen chloride and oxygen.We sampling and titration the product with sodium hydroxide and sodium thiosulfate when the temperature goes to 430℃.Finally,we calculated the flow and conversion rates of the hydrogen chloride.

Key Words:Hydrogen chloride Catalyst Conversion rates Sampling titration

目录

摘要..............................................................................................................................Ӏ

ABSTRACT.............................................................................................................ӀӀ

1. 文献综述.......................................................................................................1

1.1 研究背景....................................................................................................1

1.2 氯化氢氧化反应器的研究进展................................................................1

1.2.1 固定床反应器.................................................................................2

1.2.2 流化床反应器.................................................................................3

1.2.3 移动床反应器.................................................................................5

1.3 氯化氢氧化制氯气的方法........................................................................5

1.3.1 直接氧化法.....................................................................................5

1.3.2 催化氧化法.....................................................................................5

1.4 催化剂........................................................................................................6

1.4.1 铜系催化剂.....................................................................................6

1.4.2 铬系催化剂.....................................................................................6

1.4.3 其他催化剂.....................................................................................7

1.5 氯化氢催化氧化制氯工艺研究................................................................7

1.5.1 前言.................................................................................................7

1.5.2 工艺.................................................................................................9

1. 实验部分....................................................................................................10

2.1 光滑单管.....................................................................................................10

2.1.1 空时与氯化氢转化率的关系........................................................10

2.1.2 氯氧比与氯化氢转化率的关系....................................................11

2.2 加毛刺单管流化床.....................................................................................11

2.2.1 半段毛刺单管流化床....................................................................12

2.2.2 全毛刺单管....................................................................................12

2.3 两台流化床串联.........................................................................................13

2.4 反应器内两段流化床串联实验.................................................................15

2.5 氯化氢氧化过程强化实验对比.................................................................16

参考文献..............................................................................................................18 致谢..............................................................................................................................20

第一章 文献综述

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