问题
问答题 简答题
精甲醇水含量高是何原因造成的,应如何处理?
答案
参考答案:
(1)精甲醇冷却器漏,冷却水漏入精甲醇。需停车检修。
(2)采出温度高,采出量过大,回流量小,造成重组分上移。处理方法:降低采出量,加大回流量,降低采出温度。
(3)精甲醇泵密封填料漏,冷却水进入精甲醇。需倒泵检修。
(4)精甲醇槽上部有漏点,喷淋水进入精甲醇。需倒槽处理。
精甲醇水含量高是何原因造成的,应如何处理?
参考答案:
(1)精甲醇冷却器漏,冷却水漏入精甲醇。需停车检修。
(2)采出温度高,采出量过大,回流量小,造成重组分上移。处理方法:降低采出量,加大回流量,降低采出温度。
(3)精甲醇泵密封填料漏,冷却水进入精甲醇。需倒泵检修。
(4)精甲醇槽上部有漏点,喷淋水进入精甲醇。需倒槽处理。
Almost all the students at school in China are learning a foreign language(外语). And millions of adults(成年人) are learning a certain foreign language, too. How ______ the adults do it? Some people try to learn _____ at home; others go to evening classes. If they use the language only ______ a week, the learning will take a long time, like us students learning a language _____. A few _____ try to learn a language fast by(通过) studying six or more hours a day. However, most people can’t afford(负担得起) this, and for ______ people it is not necessary(必要). They need the language in order to(为了) do their work ____. Whether(是否) the language is learnt quickly or slowly, it is hard _____. Machines and good books will _____, but they can’t do the student’s job _______ them.
|