What should be the temperature and pressure respectively for catalytic cracking?
Correct answer: A. 500°C, 2atm
- A. 500°C, 2atm
- B. 900°C. 2atm
- C. 500°C. 4atm
- D. 900°C. 4atm
Explanation
The temperature for catalytic cracking is usually in the range of 450°C to 550°C. This temperature range provides the necessary energy to break the strong carbon-carbon bonds in the heavy hydrocarbons, initiating the cracking process. Catalytic cracking is usually conducted at low or moderate pressures. The pressure is typically around atmospheric pressure, so 1 to 3 atm. Therefore option A is correct.
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Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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