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4.3 低温冷箱 Cryogenic Cold Box
4.3.1 CO分离 CO Separation
![](https://epubservercos.yuewen.com/7BDC44/16499760305799406/epubprivate/OEBPS/Images/image164.jpeg.jpg?sign=1738937487-5HvdhQ5QjMtCESNaaBObTr0aZj6R8JKf-0-0e79eb5cd8a6a8579e9d98ea99fdabc6)
1 一氧化碳产品气 CO product gas
2 粗氢气 raw hydrogen gas
3 原料气 feed gas
4 闪蒸气 flash gas
5 冷却器1 cooler 1
6 冷却器2 cooler 2
7 分离器 seperator
8 气提塔 stripping column
4.3.2 液氮洗 Nitrogen Wash
![](https://epubservercos.yuewen.com/7BDC44/16499760305799406/epubprivate/OEBPS/Images/image165.jpeg.jpg?sign=1738937487-xZB2gYs0blZgwni6bkMCmFAQb5SWeXeE-0-35bb1a0d4d622542660c2e7815f717ca)
1 原料气 feed gas
2 高压氮气 high pressure nitrogen gas
3 尾气 tail gas
4 氨合成气 ammonia syngas
5 闪蒸气 flash gas
6 预冷器 precooler
7 冷却器1 cooler 1
8 冷却器2 cooler 2
9 闪蒸罐 flash drum
10 氮洗塔 nitrogen wash column