Discussion
Consider the following statements about slurry reactors.
1. Fine particles give a high effectiveness factor.
2. Separating catalyst from product is a real difficulty.
3. They are used mainly for gas phase reactions.
Answer: A
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: the very fine particles used in a slurry give short diffusion paths and effectiveness factors near unity, and filtering that fine solid out of the product is one of the process’s real difficulties. Statement 3 is wrong - a slurry reactor holds catalyst suspended in a *liquid*, and is used for three-phase reactions such as hydrogenations, with the gas sparged through.
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