Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2009-09-01

Journal: ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING

Included Journals: Scopus、EI、SCIE

Volume: 4

Issue: 5,SI

Page Number: 574-580

ISSN: 1932-2143

Key Words: hydrogenation; naphthalene; nickel phosphide

Abstract: Two series of silica supported nickel phosphide catalysts with different Ni/P atomic ratios of the precursors and loadings had been prepared by a temperature-programmed reduction of nickel phosphate. The resulting samples were characterized by means of N(2) physorption and X-ray diffraction (XRD). The activities of the catalysts were measured for naphthalene hydrogenation (HYD) at 340 degrees C and 4 MPa. The operating conditions of naphthalene HYD such as temperature, pressure and H(2)/liquor ratio were tested in detail. It is found that all the samples were active in this reaction and the sample which precursor with Ni/P = 1.25 and loading with 30 wt% displayed the highest catalytic activity and decalin selectivity. Naphthalene conversion and selectivity to decalin went through a maximum (100% and 83% at 340 degrees C) with the increasing reaction temperature. (C) 2009 Curtin University of Technology and John Wiley & Sons, Ltd.