问题 问答题 简答题

分馏操作对反应岗位有何影响?

答案

参考答案:

1.塔201底液面,高于油气进口管线会使反应超压。

2.原料预热对炉201入口温度有影响。

3.冷回启用量过大或带使反应压力升高。

4.容201液面满缸,会使反应压力升高。

5.向塔201底补原料油,会影响提升管进料量。

6.塔顶温度及各段回流大幅度变化会影响反应压力波动。

7.分馏塔中部温度的变化和回炼二层返塔量的变化影响容201液面。

完形填空
My uncle has a very beautiful umbrella. He has had it  36  and as he is very  37  it, it still looks as good as new.
“That umbrella must have   38  you a great deal of money, Uncle.” I said to him one day.
“No,” he replied, “ 39 ”
“Was it a present?” I asked again.
“No,” said he.
“Then how did you get it?” I asked.
“Well,” he answered, “it is a strange true story. About ten years ago, I was walking along a quiet London street one evening   40  it suddenly rained. I had no raincoat and no umbrella. No buses ran through that street and there were no   41  in sight. As I was on my way to a party, I didn't want to get  42 . So I stood at a doorway and waited for the rain to stop. By and by it grew quite  43 .There wasn't a person around, and  44  it rained and rained.  45  a young man came to the place where I was standing,  46   a large umbrella over his head.  47  I hoped he would   48  me to walk to the next corner with him in order that I could get a taxi, I stepped   49  the dark doorway where I had been standing, and said: “ 50 , where are you going with that umbrella?”
 51  by my sudden appearance, the young man  52   the umbrella, which, I'm afraid, he had just stolen, ran away, and  53  into the darkness. I picked up the umbrella and continued my walk. I knew it would be  54  in this big city to try and discover the owner and so I've kept it   55 .”
小题1:
A.for months B. for yearsC.since childhoodD.for a few days
小题2:
A.satisfied withB.afraid of C.proud ofD.careful with
小题3:
A.givenB.costC.savedD.made
小题4:
A.very littleB.I don't knowC.not a pennyD.quite a lot
小题5:
A.whenB.thoughC.becauseD.after
小题6:
A.bicyclesB.policemenC.friendsD.taxis
小题7:
A.tiredB.backC.wetD.away
小题8:
A.darkB.fineC.dirtyD.dangerous
小题9:
A.naturallyB.suddenlyC.alwaysD.still
小题10:
A.At onceB.At lastC.As usualD.As well
小题11:
A.sellingB.carryingC.movingD.showing
小题12:
A.AsB.AlthoughC.WhileD.If
小题13:
A.orderB.persuadeC.allow D.promise
小题14:
A.intoB.out ofC.towardsD.along
小题15:
A.By the wayB.HelpC.Excuse meD.Stop
小题16:
A.PunishedB.DiscouragedC.WarnedD.Frightened
小题17:
A.raisedB.tookC.droppedD.forgot
小题18:
A.disappearedB.lostC.pulledD.turned
小题19:
A.endlessB.interesting C.excitingD.hopeless
小题20:
A.ever sinceB.for a whileC.for youD.forever
判断题