Process and catalyst study on selective hydrogenation of isoprene to n-pentene were carried out in the article.The results show that Pd-Pb-K/γ-Al2O3 noble metal catalyst has good hydrogenation activity and selectivity,and the selectivity of n-pentene can be improved by strictly controlling the molar ratio of hydrogen to diolefin and hydrogen distribution in three-stage hydrogen injection process.
fine chemical engineeringisoprenen-penteneselective hydrogenationthree-stage hydrogen injection