Catalyst for phenylacetylene Removal in Styrene
The removal of phenylacetylene from the styrene stream is crucial in the recovery of styrene from cracked gasoline. Due to the similarity in physical and chemical properties between phenylacetylene (PhA) and styrene, efficiently separating them through conventional extractive distillation is challenging. As a result, selective hydrogenation is widely used to convert phenylacetylene into styrene while minimizing excessive hydrogenation to ethylbenzene.
Although phenylacetylene is present in very low concentrations, it significantly contributes to the color of the styrene. This catalyst plays a vital role in styrene production and C8 fraction refining processes, providing high selectivity, efficiency, and durability under mild operating conditions.