recovery process of aromatic hydrocarbons from dehydrogenation vent gas of styrene units was studied.
研究了苯乙烯装置脱氢尾气中芳烃回收工艺。
the technology and principle of vent gas recovery system with paraffin were introduced.
介绍了尾气石蜡回收系统的工艺及工作原理。
through the analysis of vent gas it can diagnose the position of engine fault, which was verified by the real fault example.
指出通过尾气分析可诊断出发动机故障所在的部位,并通过故障实例得到了验证。
in this work, samples of airborne particulates, vent gas and smog dust during heating and non-heating seasons were collected in the urban and suburban areas of lanzhou.
本文收集了兰州市区和郊区在取暖期和非取暖期的大气飘尘样品和汽车尾气及烟尘样品。
this device helps vent gas that boils off from the liquid oxygen tank, and also bathes the top of the tank in warmed nitrogen to prevent ice from forming.
这个装置有助于排除液氧燃料箱蒸发的气体,并且它还可以用加温氮气笼罩箱顶,以防结冰。
thirdly, the so2 from the h2scontained vent gas will cause acid rain, which will become pollutants to the trees, plants, waters and soils when reaching to a certain content.
③h2s放空燃烧生成的so2及其形成的酸雨达到一定浓度后容易对井站周围的植被、水土造成污染。
this paper analyses and compares the situation of synthetic ammonia production by taking separately natural gas, and vent gas of methanol and coke gas to be as the raw gas.