2) medium temperature transformation furnace
中温变换炉
1.
Through the reform of the vacant equipment low temperature transformation furnace, making it in parallel withmedium temperature transformation furnace, it has reduced energy consumption and received obvious effect.
利用闲置设备低温变换炉进行改造处理,与原有中温变换炉并联使用,取得了十分显著的效果,不但降低了变换的能耗,而且为扩大产量奠定了基础。
3) high temperature shift catalyst
中温变换催化剂
1.
With the action of some bivalent cation, high temperature shift catalyst has been prepared by mixture precipitation method using open-hearth dust as a raw material.
利用钢铁厂平炉尘制备中温变换催化剂,制备成本低,工艺简单,活性达到部颁标准,具有明显的经济效益。
4) high-temperature shift catalyst
中温变换催化剂
1.
A low lead high-temperature shift catalyst was developed on the basis of the research by former USSR and its main peffermance was compared with the Fe-Cr HTS catalysts in China.
在原苏联Fe-Ph系CTK-MЖ型中温变换催化剂的基础上,研制了低铅中温变换催化剂,并与我国Fe-Cr系中温变换催化剂的主要性能进行了比较。
5) low-temperature shift
低温变换
1.
The main performance and application of several low-temperature shift catalysts in energy-saving large-scale ammonia plants are reviewed.
本文介绍了几种用于节能流程大型氨厂低温变换催化剂主要性能及其使用情况,表明国产低温变换催化剂具有低温活性好、CO转化率高、选择性好、使用寿命长等优点,完全可以满足国内节能流程合成氨厂的使用要求。
2.
The background of developing for CO shift catalysts was introduced; CO high-temperature shift catalysts and low-temperature shift catalysts abroad were compared with those in china.
介绍了CO变换催化剂的发展背景,对国内外CO高温变换催化剂和低温变换催化剂进行了综述。
6) low temperature shift
低温变换
1.
This paper makes a detailed analysis and summary on the reduction and operation of low temperature shift catalyst.
对低温变换催化剂的还原及使用情况进行详细分析与总结。
2.
The detailed analysis and summarizes of the reduction of low temperature shift catalyst and its application are presente
对低温变换催化剂的还原及使用情况进行详细分析与总
3.
This paper presents some performances of CB-5 low temperature shift catalyst used in the energy saving technical revamping of Yunnan Natural Gas Chemical Plant,The data determinied in both laboratory and actual application show that there are many features about the CB- 5 catalyst,such as smaller particle,lower bulk density,lower LOI,lower contraction,higher strength and higher activi-ty.
介绍了与云天化节能技术改造配套使用的CB-5低温变换催化剂有关性能。
补充资料:中温变换
分子式:
CAS号:
性质:在350~500℃下,CO和水蒸气在催化剂作用下转化为H2和CO2的反应。催化剂为Fe3O4-Cr2O3,其中Fe3O4为主要活性物质,Cr2O3为助催化剂,起耐热稳定作用,抑制Fe3O4晶粒的熔结。由于反应温度较高,反应速度快,原料气中的CO(10%~50%)大部分已转化,余下2%~3%,其浓度已非常接近该温度下的平衡浓度。采用中温变换的主要考虑是动力学因素,即升高温度以提高反应速度,使大部分CO转化。
CAS号:
性质:在350~500℃下,CO和水蒸气在催化剂作用下转化为H2和CO2的反应。催化剂为Fe3O4-Cr2O3,其中Fe3O4为主要活性物质,Cr2O3为助催化剂,起耐热稳定作用,抑制Fe3O4晶粒的熔结。由于反应温度较高,反应速度快,原料气中的CO(10%~50%)大部分已转化,余下2%~3%,其浓度已非常接近该温度下的平衡浓度。采用中温变换的主要考虑是动力学因素,即升高温度以提高反应速度,使大部分CO转化。
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