Research on butene oligomerization reaction over the hemicellulose modified HZSM-5

The HZSM-5 was synthesized with modifying by different contents of hemicellulose. The morphology, texture and acidity were characterized with XRD, SEM, N2 adsorption-desorption, NH3-TPD and Py-IR. Butene oligomerization over the modified HZSM-5 was tested. The results indicated that the HZSM-5 with 1.6% hemicellulose exhibited the best activity and stability on the butene oligomerization reaction. The conversion can maintain about 80% after 140 h on stream with the highest selectivities of the trimer, tetramer and diesel component in the products, which may be related with its high BET surface and mesoporous volume, and the strongest acidity.