CO Low Temperature Shift Catalyst

1. 概述 General Introduction

SCST-231型CO低温变换催化剂用于天然气、炼厂气、焦炉气、高炉气等合成气制甲醇、制合成氨，制氢等装置中的一氧化碳变换反应。一氧化碳与水蒸气反应生成CO₂和H₂，使气体中一氧化碳（干气）小于0.3%，从而达到气体净化的目的。

Low temperature CO shift catalyst SCST-231 is used for the system of ammonia, methanol, hydrogen plant of CO shift reaction, which use different raw materials such as natural gas, coke oven gas, oil field gas, naphtha and so on. The CO reacts with water vapor to produce H₂ and CO₂. The CO content in the out gas is lower than 0.3%.

主要反应如下：the main reactions are as following:

 CO+H₂O_（g）→CO₂+H₂+41.19 KJ/mol

2. 物化性能 Physical and Chemical Properties

可根据用户需要提供其他尺寸的催化剂。

Catalysts of other sizes can be supplied according to the needs of users.

3. 操作工艺条件Operation Conditions

4. 催化剂特性Product Advantages

1) 烧失重低、收缩率小，还原后催化剂基本不下沉；

Smaller shrinkage: does not decrease after the reduction;

2) 活性组分分散好，转化率高，正常工艺条件下转化率可以达到95%以上；

Better active components dispersing and higher conversion rate: the conversion can reach above 93% under normal process conditions;

3) 对于部分高硫气体装置，抗毒性能更优，短时间不会导致中毒而失活；

Better anti-poison performance for some high-sulfur condition, can’t be poisoned or lose activity in a short time;

4) 新型助剂添加，副产物少，从而达到节能降耗的目的；

By adding of new auxiliaries, by-products will be less, thus saving utilities and production cost.