下载文档原格式
液氨安全基础知识培训液氨安全基础知识培训液氨是什么？（What is ammonia ?）（1）液氨是一种沸点在零下33摄氏度的比空气轻的气体（Ammonia is a gas lighter than Air at temperaturesabove minus 33°C）；（2）液氨会与水剧烈反应，释放大量的热量（Ammonia reacts quite violently with water. A lot of heat isevolved）；（3）液氨有严重刺激性气味，5-10ppm的浓度下人可以直接吸入（Ammonia has a heavy pungent smell, it can be smelled from 5-10 ppm）；（4）液氨可以被探测器探测到或者直接从其气味被闻到。
由于液氨的这种气味可以让人在造成损伤之前被直接嗅到，这样给了液氨一定的安全度（Ammonia can be detected by ammonia detectors or by its smell. The smell gives to this chemical a kind of intrinsic safety since it can be smelled long before it is getting dangerous）；（5）液氨是由空气中的氮气和氢气在金属催化剂和高温高压下生成的（Produced by reacting Nitrogen from the air with hydrogen on an iron based catalyst at high temperature and pressure）；（6）以氢气为原料的合成氨法中的氢气是由煤或者是其他碳氢化合物经过气化重整过程得到的（The hydrogen used in the ammonia synthesis is produced by means of the steam reforming process with coal or other hydrocarbons as raw material）；（7）全球年产液氨大约一亿两千万吨（2006年数据）（World production of ammonia ~ 120 million metric tonnes (2006)）。
