【多选题】一乙醇胺法(MEA)Monoethanolamine method (MEA):()
A.
吸收剂—15~25%(wt)的一乙醇胺水溶液。溶液的浓度通常根据腐蚀性和操作经验来选择。Absorbent - 15-25% (wt) monoethanolamine solution. The concentration of solution is usually chosen according to corrosiveness and operating experience.
B.
脱酸气情况:特点为化学吸收过程,受压力影响小,当压力在3~7kg/cm2仍能达到管输天然气要求。Deacidification gas: it is characterized by chemical absorption process and is less affected by pressure. When the pressure is 3 ~ 7kg/cm2, it can still meet the requirements of pipeline natural gas transportation.
C.
缺点:蒸气压高,挥发性强,腐蚀性强。Disadvantages: high vapor pressure, strong volatility, strong corrosion.
D.
应用:此法常用于脱硫,应用广泛。Application: this method is widely used in desulfurization.
【单选题】In paragraph 2, all year round the Mediterranean region produces large amounts of
B.
fruits and vegetables.
D.
fish and dairy products.
【单选题】下列句子中加点词语古今意义基本相同的一项是 ( )
【单选题】下列句子中的词语古今意义基本相同的一项是( )
【单选题】下列句子中加点词语古今意义基本相同的一项是( )
【单选题】下列句子中加括号的词语古今意义基本相同的一项是
【简答题】混凝土拌合物出现下列情况,应如何调整 ?
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