Question

Two methods of preparing 1,3- butadiene?​

Answer 1

Answer:

naphtha cracking and dehydogenation

Explanation:

naphtha cracking process entails substantial energy consumption due to a high reaction temperature and requires establishment or expansion of new naphtha crackers to meet an increasing demand for 1,3-butadiene through naphtha cracking.

Dehydrogenation of normal-butene includes direct dehydrogenation and oxidative dehydrogenation, which direct dehydrogenation of normal-butene is an endothermic reaction having considerably high reaction heat, is required for high-temperature and low-pressure conditions to produce 1,3-butadiene at a high yield as thermodynamically unfavorable and is not suitable for a commercial process to produce 1,3-butadiene.