["화학공정에서 냉각에 대한 의문", "화학공企业在化工生产中冷却的疑问
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企业在化工企业需要对反应釜内的物质进行深冷，冷却温度达到零下60到零下7 度，请请问如何实现？冷媒用什么呢？ 不不应该用液氨的吧。氨气的临界温度和临界压力分别为下3.3C和下75.3KPa。请教各位 感谢！", "우리는 메탄올을 사용하지만 냉각원은 기체 아민입니다"]
我们是用甲醇、但冷源还是气氨
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