Fluid catalytic cracking (FCC) units are a central part of modern oil refineries. What does "fluid" refer to?
Correct answer: B. The solid catalyst behaves like a fluid when aerated with vapor
- A. The feedstock is a liquid
- B. The solid catalyst behaves like a fluid when aerated with vapor
- C. The product is a liquid fuel
- D. The process uses a liquid catalyst
Explanation
In an FCC unit, the very fine, solid catalyst particles are suspended in the hot, up-flowing hydrocarbon vapor. This suspension makes the solid-gas mixture behave like a boiling liquid (a fluidized bed), which allows for excellent mixing and heat transfer.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Industrial Chemistry
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
Practise Industrial Chemistry
292 free Industrial Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Industrial Chemistry questions
What is the role of a promoter in catalysis?
The Kraft process is the dominant method for producing:
Which gas is removed from natural gas because it is corrosive and non-combustible?
The production of high-fructose corn syrup (HFCS) involves the use of:
Which of the following is considered a primary raw material for the chemical industry?
Fractions of crude petroleum can be obtained by using _.