1) low temperature shift
低变
1.
It demonstrated that the catalyst EPI can fit the low temperature shift process and the wide temperature shift process in synthesis ammonia with natural gas as feedstock.
结果表明 ,催化剂EP1能够满足现有的以天然气为原料的合成氨低变工艺和宽温变换流
2) medium-low-low temperature shift
中低低变换
1.
This paper briefly describes a process design and a technological use in medium-low-low temperature shift process under 2.
1MPa压力下变换工段采用中低低工艺和工艺设计及生产应用情况进行了介绍 ,论述了中低低变换工艺的主要特
3) low temperature shift next to mid temperature shift
中变串低变
1.
According to the computation of feed and heat balance,balance temperature gap and CO balance concentration of CO shift unit and related factors,analyze and discuss the upper operation pressure limit for low temperature shift next to mid temperature shift in large scale ammonia production from high sulphur containing water coal slurry.
以CO变换的物热衡算、变换各段出口平衡温距和CO平衡浓度的计算结果以及各有关的影响因素为依据,分析和论证大化肥高硫水煤浆制氨中变串低变操作压力的高限。
4) low-yellowing
低黄变
1.
Development of the low-yellowing and hydrophilic aminopolysiloxanes;
低黄变和亲水性氨基聚硅氧烷的发展
2.
Synthesis and application of the modified low-yellowing aminosiloxane softener;
新型低黄变改性氨基硅油柔软剂的合成及应用
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) cryogenic deformation
低温变形
1.
High-strength and high-conductivity pure copper wires and Cu-Fe in situcomposites were produced by cryogenic deformation and thermo-mechanicalprocessing respectively.
本文运用低温变形和形变热处理方法分别制备了高强高导纯铜线材及铜铁原位复合材料。
补充资料:低温变换
分子式:
CAS号:
性质:在低于250℃温度下,CO和水蒸气在催化剂作用下转化为H2和CO2的反应。催化剂主要使用CuO-ZnO-Al2O3,Cu是主要活性物质,ZnO和Al2O3为结构助剂,防止烧结。水煤气变换是放热可逆反应,使用低温变换是出于平衡的考虑,即反应温度低时出口的CO平衡浓度较低,CO脱除比较完全。温度低时反应速度慢,因此低温变换能力比较低,工业上是在中温变换后进行。
CAS号:
性质:在低于250℃温度下,CO和水蒸气在催化剂作用下转化为H2和CO2的反应。催化剂主要使用CuO-ZnO-Al2O3,Cu是主要活性物质,ZnO和Al2O3为结构助剂,防止烧结。水煤气变换是放热可逆反应,使用低温变换是出于平衡的考虑,即反应温度低时出口的CO平衡浓度较低,CO脱除比较完全。温度低时反应速度慢,因此低温变换能力比较低,工业上是在中温变换后进行。
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参考词条