Ultra-deep oxidative desulfurization of diesel fuel with H2O2 catalyzed under mild conditions by polymolybdates supported on Al2O3

被引：179
作者：
Garcia-Gutierrez, Jos Luis
Fuentes, Gustavo A.
Hernádez-Teran, Maria Eugenia
Murrieta, Florentino
Navarrete, Juan
Jimenez-Cruz, Federico
机构：
[1] Inst Mexicano Petr, Programa Proc & Reactores, Mexico City 07730, DF, Mexico
[2] Univ Autonoma Metropolitana Iztapalapa, Area Ingn Quim, Mexico City 09340, DF, Mexico
来源：
APPLIED CATALYSIS A-GENERAL | 2006年 / 305卷 / 01期
关键词：
desulfurization; molybdenum; polymolybdates; oxidation; sulfur; 4,6-dimethyldibenzothiophene; hydrogen peroxide; catalysis; diesel fuel;
D O I：
10.1016/j.apcata.2006.01.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The evaluation of the catalytic oxidative desulfurization (OD) activity of alumina-supported polymolybdates (Mo/Al2O3) was carried out using organosulfur model compounds and diesel fuel. Hydrogen peroxide was the oxidizing reagent. Ultra-deep desulfurization, 97.8% removal of sulfur in diesel fuel, was achieved by reaction under mild conditions followed by solvent extraction. The catalyst was prepared by equilibrium adsorption and characterized by infrared, Raman, X-ray photoelectron, P-31 and Al-27 MAS NMR spectroscopies. Our results indicate that the phosphomolybdate used during synthesis of the catalysts decomposes and forms hydrated hepta- and octamolybdates as well as phosphate ions on the surface of alumina. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：15 / 20
页数：6
相关论文
共 35 条
[1]   Vanadium peroxocomplexes as oxidation catalysts of sulfur organic compounds by hydrogen peroxide in bi-phase systems [J].
Anisimov, AV ;
Fedorova, EV ;
Lesnugin, AZ ;
Senyavin, VM ;
Aslanov, LA ;
Rybakov, VB ;
Tarakanova, AV .
CATALYSIS TODAY, 2003, 78 (1-4) :319-325
[2]   Science and technology of novel processes for deep desulfurization of oil refinery streams: A review [J].
Babich, IV ;
Moulijn, JA .
FUEL, 2003, 82 (06) :607-631
[3]  
BASOLO F, 1964, MECH INORGANIC REACT
[4]   Stability of the phospho-molybdic Dawson-type ion P2Mo18O626- in aqueous media [J].
Briand, LE ;
Valle, GM ;
Thomas, HJ .
JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (02) :299-304
[5]   The nature of activity enhancement for propane oxidation over supported Pt catalysts exposed to sulphur dioxide [J].
Burch, R ;
Halpin, E ;
Hayes, M ;
Ruth, K ;
Sullivan, JA .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 19 (3-4) :199-207
[6]   Ligand-promoted alumina dissolution in the preparation of MoOx/gamma-Al2O3 catalysts: Evidence for the formation and deposition of an Anderson-type alumino heteropolymolybdate [J].
Carrier, X ;
Lambert, JF ;
Che, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (42) :10137-10146
[7]   Structure and catalytic properties of molybdenum oxide catalysts supported on zirconia [J].
Chary, KVR ;
Reddy, KR ;
Kishan, G ;
Niemantsverdriet, JW ;
Mestl, G .
JOURNAL OF CATALYSIS, 2004, 226 (02) :283-291
[8]   The first example of direct oxidation of sulfides to sulfones by an osmate molecular oxygen system [J].
Choudary, BM ;
Reddy, CRV ;
Prakash, BV ;
Kantam, ML ;
Sreedhar, B .
CHEMICAL COMMUNICATIONS, 2003, (06) :754-755
[9]   Oxidative desulfurization: Oxidation reactivity of sulfur compounds in different organic matrixes [J].
De Filippis, P ;
Scarsella, M .
ENERGY & FUELS, 2003, 17 (06) :1452-1455
[10]  
DJANGKUNG S, 2003, APPL CATAL A-GEN, V252, P331
1234