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Title: Synthesis and reactivity of new bimetallic oxynitrides

Abstract

A new series of bimetallic oxynitride catalysts, M{sub 1}M{sub 2}O{sub x}N{sub y} (M{sub 1} = V{sub 1}, Nb, Cr, Mn and Co, M{sub 2} = Mo or W), was prepared by nitriding the bimetallic oxide precursors in an ammonia gas stream at 1000 cm{sup 3}/min (6.8x10{sup 2} {mu}mol s{sup -1}) while the temperature was raised at 5 K/min (8.3x10{sup -2} K s{sup -1}). The catalysts were characterized by x-ray diffraction, x-ray photoelectron spectroscopy, CO chemisorption and surface area measurements. The catalytic activity of these catalysts for mixture containing 3000 ppm sulfur (dibenzothiophene), 2000 ppm nitrogen (quinoline), 500 ppm oxygen (benzofuran), 20 wt% aromatics (15 wt% tetralin and 5 wt% amylbenzene) and balance aliphatics (tetradecane). The activities of the bimetallic oxynitrides were compared to a commercial sulfided Ni-Mo/Al{sub 2}O{sub 3} catalyst tested at the same conditions. The bimetallic oxynitrides were active for quinoline HDN and V-Mo-O-N exhibiting higher HDN activity than the commercial Ni-Mo/Al{sub 2}O{sub 3} catalyst. The HDS activity of the bimetallic oxynitrides ranged from 9-37% with Co-Mo-O-N showing the highest HDS activity among the oxynitrides tested.

Authors:
; ;  [1]
  1. Virginia Polytechnic Institute and State Univ., Blacksburg, VA (United States)
Publication Date:
OSTI Identifier:
214802
Report Number(s):
CONF-950801-
TRN: 96:000922-0275
Resource Type:
Conference
Resource Relation:
Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 02 PETROLEUM; VANADIUM NITRIDES; CATALYTIC EFFECTS; NIOBIUM NITRIDES; CHROMIUM NITRIDES; MANGANESE NITRIDES; COBALT COMPOUNDS; TUNGSTEN NITRIDES; MOLYBDENUM NITRIDES; POLYCYCLIC SULFUR HETEROCYCLES; DESULFURIZATION; FOSSIL FUELS; REFINING; AROMATICS; CATALYSTS; CHEMISORPTION; PHOTOELECTRON SPECTROSCOPY; SURFACE AREA; TETRALIN; X-RAY DIFFRACTION; OXYGEN COMPOUNDS; DENITRATION

Citation Formats

Oyama, S T, Ramanathan, S, and Yu, C C. Synthesis and reactivity of new bimetallic oxynitrides. United States: N. p., 1995. Web.
Oyama, S T, Ramanathan, S, & Yu, C C. Synthesis and reactivity of new bimetallic oxynitrides. United States.
Oyama, S T, Ramanathan, S, and Yu, C C. Sun . "Synthesis and reactivity of new bimetallic oxynitrides". United States.
@article{osti_214802,
title = {Synthesis and reactivity of new bimetallic oxynitrides},
author = {Oyama, S T and Ramanathan, S and Yu, C C},
abstractNote = {A new series of bimetallic oxynitride catalysts, M{sub 1}M{sub 2}O{sub x}N{sub y} (M{sub 1} = V{sub 1}, Nb, Cr, Mn and Co, M{sub 2} = Mo or W), was prepared by nitriding the bimetallic oxide precursors in an ammonia gas stream at 1000 cm{sup 3}/min (6.8x10{sup 2} {mu}mol s{sup -1}) while the temperature was raised at 5 K/min (8.3x10{sup -2} K s{sup -1}). The catalysts were characterized by x-ray diffraction, x-ray photoelectron spectroscopy, CO chemisorption and surface area measurements. The catalytic activity of these catalysts for mixture containing 3000 ppm sulfur (dibenzothiophene), 2000 ppm nitrogen (quinoline), 500 ppm oxygen (benzofuran), 20 wt% aromatics (15 wt% tetralin and 5 wt% amylbenzene) and balance aliphatics (tetradecane). The activities of the bimetallic oxynitrides were compared to a commercial sulfided Ni-Mo/Al{sub 2}O{sub 3} catalyst tested at the same conditions. The bimetallic oxynitrides were active for quinoline HDN and V-Mo-O-N exhibiting higher HDN activity than the commercial Ni-Mo/Al{sub 2}O{sub 3} catalyst. The HDS activity of the bimetallic oxynitrides ranged from 9-37% with Co-Mo-O-N showing the highest HDS activity among the oxynitrides tested.},
doi = {},
url = {https://www.osti.gov/biblio/214802}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
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