In the petroleum industry, what does a refinery do?单项选择题

A

It separates crude oil into fractions consisting of compounds with similar boiling points

B

It separates crude oil from the coal with which it is almost always found

C

It mixes natural gas or coal with crude oil in order to remove the impurities from the crude oil

D

It produces the machinery by which crude oil is removed from the ground

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类似问题

Think about the experiment you have performed and consider the following statements: The consecutive collected fractions are increasingly richer in water. The consecutive collected fractions are increasingly richer in ethanol. As the mixture in the distillation flask continues boiling, it boils at progressively higher temperatures. As the mixture in the distillation flask continues boiling, it boils at progressively lower temperatures. Select the combination of CORRECT statements:

Think about the experiment you have performed and consider the following statements: The fraction #1 is enriched in water compared to the starting mixture. The fraction #1 is enriched in ethanol compared to the starting mixture. As the mixture in the distillation flask continues boiling, it becomes progressively richer in water. As the mixture in the distillation flask continues boiling, it becomes progressively richer in ethanol. Select the combination of CORRECT statements:

Consider the fraction #1 collected in the experiment you have performed. What would happen if it were reheated?

Select the CORRECT statement with respect to the experiment you have performed.

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