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Questions and Answers
What is the purpose of demulsification in the refining of petroleum?
What is the purpose of demulsification in the refining of petroleum?
- To remove sulphur compounds from the crude oil
- To remove harmful impurities such as NaCl and MgCl2
- To separate the crude oil into different fractions
- To separate the emulsion of oil and salt water (correct)
What is the temperature to which the crude oil is heated in the fractional distillation process?
What is the temperature to which the crude oil is heated in the fractional distillation process?
- 400 °C (correct)
- 300 °C
- 200 °C
- 500 °C
What is the purpose of Cotrell's process in the refining of petroleum?
What is the purpose of Cotrell's process in the refining of petroleum?
- To separate the crude oil into different fractions
- To achieve demulsification of the crude oil (correct)
- To remove sulphur compounds from the crude oil
- To remove NaCl and MgCl2 from the crude oil
What is the byproduct formed when sulphur compounds react with copper oxide?
What is the byproduct formed when sulphur compounds react with copper oxide?
What is the purpose of electrical desalting and dehydration in the refining of petroleum?
What is the purpose of electrical desalting and dehydration in the refining of petroleum?
What is the shape of the fractionating column used in the fractional distillation process?
What is the shape of the fractionating column used in the fractional distillation process?
What is the primary purpose of the fractionating tower?
What is the primary purpose of the fractionating tower?
What happens to the vapours as they rise up the fractionating tower?
What happens to the vapours as they rise up the fractionating tower?
What is the approximate percentage of gasoline obtained from crude oil through fractionation?
What is the approximate percentage of gasoline obtained from crude oil through fractionation?
What is the purpose of cracking in the refining of crude oil?
What is the purpose of cracking in the refining of crude oil?
What is the difference between thermal cracking and catalytic cracking?
What is the difference between thermal cracking and catalytic cracking?
What is the characteristic of gasoline obtained through cracking compared to straight run gasoline?
What is the characteristic of gasoline obtained through cracking compared to straight run gasoline?
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