Cobalt molybdenum oxide catalysts for selective oxidation of cyclohexane

被引：38

作者：

Unnarkat, Ashish P. ^{[1
]}

Sridhar, Tam ^{[2
]}

Wang, Huanting ^{[2
]}

Mahajani, Sanjay ^{[3
]}

Suresh, Akkihebbal K. ^{[3
]}

机构：

[1] Indian Inst Technol, IIT Bombay Monash Res Acad, Bombay 400076, Maharashtra, India

[2] Monash Univ, Dept Chem Engn, Clayton, Vic 3168, Australia

[3] Indian Inst Technol, Dept Chem Engn, Bombay 400076, Maharashtra, India

来源：

AICHE JOURNAL | 2016年 / 62卷 / 12期

关键词：

cobalt molybdenum oxide; KA-oil; cyclohexane oxidation; catalyst deactivation; kinetic model; LIQUID-PHASE OXIDATION; UNCATALYZED OXIDATION; KINETIC-MODEL; CO-TUD-1; OXYGEN; HMS;

D O I：

10.1002/aic.15335

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Oxidation of cyclohexane has been carried out using molecular oxygen over cobalt molybdenum oxide (CoMoO4) catalysts in solvent free conditions. The catalysts were prepared using citrate method with three different molar ratios of Co:Mo, 1:1, 1:2, and 2:1 along with individual oxides for comparative studies. While all the catalysts showed significant activity and selectivity, CoMoO4 with 1:1 ratio showed the best performance compared to the others with a conversion of 7.38%, with selectivity to cyclohexanol and cyclohexanone (KA oil) of 94.3%, in 1h. The performance of the catalyst, has been studied as a function of oxygen pressure, reaction temperature, and catalyst loading. It was observed that the catalyst deactivates during the course of the reaction. The reasons for deactivation and methods for restoring the activity have been studied. A kinetic model is presented that captures the complex kinetics and matches well with the experimental data. (c) 2016 American Institute of Chemical Engineers AIChE J, 62: 4384-4402, 2016

引用

页码：4384 / 4402

页数：19

共 50 条

[1] Study of cobalt molybdenum oxide supported on mesoporous silica for liquid phase cyclohexane oxidation
Unnarkat, Ashish P.
Sridhar, Tam
Wang, Huanting
Mahajani, Sanjay M.
Suresh, Akkihebbal K.
[J]. CATALYSIS TODAY, 2018, 310 : 116 - 129
[2] Novel and efficient cobalt encapsulated SBA-15 catalysts for the selective oxidation of cyclohexane
Reddy, S. Sreevardhan
Raju, B. David
Padmasri, A. H.
Prakash, P. K. Sai
Rao, K. S. Rama
[J]. CATALYSIS TODAY, 2009, 141 (1-2) : 61 - 65
[3] The kinetics of selective oxidation of propene on bismuth vanadium molybdenum oxide catalysts
Zhai, Zheng
Getsoian, Andrew ''Bean''
Bell, Alexis T.
[J]. JOURNAL OF CATALYSIS, 2013, 308 : 25 - 36
[4] Structurally complex molybdenum oxide model catalysts for the selective oxidation of propene
Abd Hamid, SB
Othman, D
Abdullah, N
Timpe, O
Knobl, S
Niemeyer, D
Wagner, J
Su, D
Schlögl, R
[J]. TOPICS IN CATALYSIS, 2003, 24 (1-4) : 87 - 95
[5] Structurally Complex Molybdenum Oxide Model Catalysts for the Selective Oxidation of Propene
S.B. Abd Hamid
D. Othman
N. Abdullah
O. Timpe
S. Knobl
D. Niemeyer
J. Wagner
D. Su
R. Schlögl
[J]. Topics in Catalysis, 2003, 24 : 87 - 95
[6] SELECTIVE OXIDATION OF METHANOL ON IRON-CHROMIUM-MOLYBDENUM OXIDE CATALYSTS
KLISSURSKI, D
RIVES, V
PESHEVA, Y
MITOV, I
STOYANOVA, R
[J]. NEW DEVELOPMENTS IN SELECTIVE OXIDATION II, 1994, 82 : 787 - 794
[7] Dehydrogenation of cyclohexane over molybdenum/mixed oxide catalysts
Riad, M.
Mikhail, S.
[J]. CATALYSIS COMMUNICATIONS, 2008, 9 (06) : 1398 - 1403
[8] CHARACTERIZATION OF UNSUPPORTED MOLYBDENUM OXIDE COBALT OXIDE CATALYSTS
HALAWY, SA
MOHAMED, MA
BOND, GC
[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 1993, 58 (03) : 237 - 245
[9] MAGNETIC STUDY OF COBALT MOLYBDENUM OXIDE CATALYSTS
RICHARDSON, JT
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1964, 3 (02): : 154 - &
[10] Iron-molybdenum-oxide catalysts for selective oxidation of hydrogen sulfide to sulfur
Li, KT
Huang, CH
[J]. CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1999, 77 (06): : 1141 - 1145

← 1 2 3 4 5 →