Study on high-performance unsupported Ni-Mo-W hydrotreating catalyst

A new unsupported hydrotreating catalyst with binder has been prepared by a reflux method. BET, XRD, TEM characterization results show that the catalysts have high surface area and dense active phase. Pilot plant results also show that the new catalyst exhibits much better hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) performance than the traditional supported catalyst. (C) 2011 Elsevier B.V. All rights reserved.