Direct conversion of methane to oxygenates over MoO3/SiO2 catalysts with an addition of hydrogen and water vapour to the reaction mixture

Kaleńczuk, R.J.; Ciarka, A.

Artykuł - szczegóły

Tytuł artykułu

Direct conversion of methane to oxygenates over MoO3/SiO2 catalysts with an addition of hydrogen and water vapour to the reaction mixture

Autorzy

Kaleńczuk R.J. , Ciarka A.

Wybrane pełne teksty z tego czasopisma

http://content.sciendo.com/view/journals/pjct/pjct-overview.xml

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

The main goal of this study was to investigate the effect of chemical parameters on the reaction of methane oxidation. Partial oxidation of methane on silica suported molybdena catalyst has been studied. The chances of an increase of oxygenates yield in partial oxidation of methane to the economically efficient level were investigated. Two kinds of tests were performed: methane oxidation on MoO3/SiO2 catalyst with an addition of hydrogen and water vapour to the reaction mixture. The most profound promoting effect was exhibited by water vapour addition. The optimum selectivity toward methanol formation was found at the reaction temperature around 575 - 650°C. The physico - chemical properties of the catalyst were determined using different techniques: N2 adsorption, SEM and FT-IR.

Słowa kluczowe

methane partial oxidation silica supported MoO3 catalyst

parcjalne utlenianie metanu utlenianie metanu katalizator MoO3/SiO2 konwersja metanu metan

Wydawca

West Pomeranian University of Technology. Publishing House

Czasopismo

Polish Journal of Chemical Technology

Rocznik

2005

Tom

Vol. 7, nr 4

Strony

11--16

Opis fizyczny

Bibliogr. 17 poz., tab., rys.

Twórcy

autor

Kaleńczuk R.J.

Ryszard.Kalenczuk@ps.pl

Szczecin University of Technology, Institute of Chemical and Environment Engineering, 70-322 Szczecin, ul. Pułaskiego 10

autor

Ciarka A.

Bibliografia

(1) Echevsky G. V., Kodenev E. G., Kikhtyanin O. V., Parmon V. N.: Direct insertion of methane into C3-C4 paraffinsover zeolite catalysts: a start to development of a new one-step catalytic processes for the gas-to-liquid transformation, Appl. Cat. A 258, 2004, 159
(2) Gondal M. A., Hameed A., Suwaiyan A.: Photo-catalytic conversion of methane into methanol using visible laser, Appl. Catal. A 243, 2003, 165
(3) Smith M. R., Ozkan U. S.: The partial oxidation of methane to formaldehyde: role of different crystal planes of MoO3, J. Catal. 141, 1993, 124
(4) Zaman J.: Oxidative processes in natural gas conversion, Fuel Proc. Techn. 58, 1999, 61
(5) Hall T. J., Hargreaves J. S. J., Hutchings G. J.: Catalytic synthesis of methanol and formaldehyde by partial oxidation of methane, Fuel Proc. Techn. 42, 1995, 151
(6) Kałucki K., Michalkiewicz B.: The effect of boron and magnesium additives on catalytic perform of Mo-O/SiO2 in the partial oxidation of methane, Pol. J. Chem. Techn. 3, 4, 2001, 16
(7) Kałucki K,. Michalkiewicz B., Morawski A. W., Arabczyk W., Ziebro J.: Utlenianie metanu do formaldehydu, Przem. Chem. 74/4, 1995, 135
(8) El Shafei G. M. S., Mokhtar M. M.: Interaction between molybdcna and silica: FT-IR/PA studies of surface hydroxyl groups and pore structure assessment, Colloids and Surfaces A: Physicochemicals and Engineering Aspects 94, 1995, 267
(9) Faraldos M., Banares M. A., Anderson J. A., Hu H., Wasch I. E. and Fierro J. L. G.: Comparision od silica-supported MoO, and V2Os catalysts in the selective partial oxidation of methane, J. Catal. 160, 1996, 214
(10) Wang Y., Otsuka K.: Structure of catalytic active site for oxidation of methane to methanol by H2-O2 gas mixture over iron-containing catalysts, J. Mol. Catal. A 111, 1996, 341
(11) Takemoto T., Tabata K., Teng Y., Dai L.-X., Suzuki E.: selective oxidation of methane in CH4-O2-NO2 over MoO3, Catal. Today 71, 2001, 47
(12) Liu Q., Rogut J., Chen B., Falconer J. L., Noble R. D.: Improved methanol yield from methane oxidation in a non-isothermal reactor, Fuel 75/15, 1996, 1748
(13) Spencer N. D.: Partial oxidation of methane to for-maldehyde by means of molecular oxygen, J. Catal. 109, 1989, 187
(14) Banares M. A., Ferro J. L. G. and Moffat J. B.: The partial oxiation of methane on MoO3/SiO2 catalysts: influence of molybdenum content and type of oxidant, J. Catal. 142, 1993, 406
(15) McCormick R. L., Al-Sahali M. B., Alptekin G. O.: Partial oxidation of methane, metanol, formaldehyde, and carbon monoxide over silica: global reaction kinetics, Appl. Catal. A 226, 2002, 129
(16) Aoki K., Ohmae M., Nanba T., Takeishi K., Azuma N., Ueno A., Hayashi H., Udagawa Y.: Direct conversion of methane into methanol over MoO3/SiO2 catalyst in an excess amount of water vapour, Catal. Today 45, 1998, 29
(17) Sugino T., Kido A., Azuma N., Ueno A., Udagawa Y.: partial oxidation of methane on silica-supported silicomolybdic acid catalysts in an excess amount of water vapour, J. Catal. 190, 2000, 118

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-article-BPS2-0035-0059