Industrial Chemistry

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What is the first part of processing crude oil?
Desalting- else accelerate corrosionof metals, deactivate catalysts
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How is desalting done?
by physical process followed by electrostatic separation
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Why do we need to remove sulphur from crude oil?
Will creat sulfuric acid when undergone certain processes and poison catalysts
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What is S good for? And by what process?
making sufuric acid and fertilisers
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By what process is sulphur removed and then recovered?
hydrodesulphurisation and Clause process respectively
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What is wrong with heavy chain alkanes that we need to crack them?
not very reactive
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What is the common feedstock of cracking?
Naphtha fraction (C7-C14)
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What are the 3 types of cracking? List in terms of which is lastest
fluid catalytic cracking, steam cracking, thermal cracking
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List in order products of FCC?
carbonium ion, alkane or dihydrogen, carbenium ion, alkene
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Why do unbranched alkanes crack faster than branched alkanes?
Catalysts reject branched chain due to poor size
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What is the catalyst in FCC?
Zeolite, containing mineral clays
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Which component has 100% octane value and which has 0%?
2,2,4-trimethylpentane and n-heptane
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By what process can naphthas be converted into cyclic alkanes? Why do we do this?
Catalytic reforming, higher octane value
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What are the 3 main petrochemicals?
Ethene, propene, benzene
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Describe 1 method to obtain sulphur which was previously used?
taken from undergound deposits
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Other cards in this set

Card 2

Front

How is desalting done?

Back

by physical process followed by electrostatic separation

Card 3

Front

Why do we need to remove sulphur from crude oil?

Back

Preview of the front of card 3

Card 4

Front

What is S good for? And by what process?

Back

Preview of the front of card 4

Card 5

Front

By what process is sulphur removed and then recovered?

Back

Preview of the front of card 5
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