Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?
Correct answer: C. Both A. and B.
- A. Less than 90% promotes polymerisation
- B. More than 98% promotes cracking
- C. Both A. and B.
- D. Neither A. nor B.
Explanation
Acid that is too dilute, below about 90%, encourages polymerisation of olefins, while excessively concentrated acid can promote undesirable cracking reactions. The useful alkylation range is therefore maintained at roughly 90 to 98%.
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