Novel microdesign of oxidation catalysts. Part 1. Glass crystal microspheres as new catalysts for the oxidative conversion of methane


Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Конференция: NATO Advanced Research Workshop, the 3rd Workshop on C(1)-C(3) Hydrocarbon Conversion; KRASNOYARSK, RUSSIA; KRASNOYARSK, RUSSIA

Год издания: 1998

Идентификатор DOI: 10.1016/S0920-5861(98)00101-1

Ключевые слова: methane; oxidative coupling; deep oxidation; microspheres; ferriferrous oxides

Аннотация: New catalysts designed as glass crystal microspheres were obtained as a result of coal and lignite combustion, hydrodynamic classification of fly ash followed by magnetic separation. The physicochemical and catalytic properties of three different systems of new catalysts were studied by SEM, XRD and Mossbauer spectroscopy. The actiПоказать полностьюve component of the new systems was shown to include alpha-Fe2O3 and a solid solution formed from magnetite and Mg(Mn)-ferrite. High-temperature eutectics (1473-1673 K) on the base of calcium aluminosilicates are represented as a matrix material. The growth of the Fe2+ concentration in the spinel phase results in increase of selectivity of C-2-product formation in oxidative coupling of methane at 1123 K and in a decrease of catalytic activity of deep oxidation at 793 K. (C) 1998 Elsevier Science B.V. Ail rights reserved.

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Выпуск журнала: Vol. 42, Is. 3

Номера страниц: 267-272

ISSN журнала: 09205861

Место издания: AMSTERDAM



  • Fomenko E.V. (Krasnoyarsk Stt. Tech. University)
  • Kondratenko E.V. (Inst. of Chem. of Nat. Organ. Mat.)
  • Salanov A.N. (Boreskov Institute of Catalysis)
  • Bajukov O.A. (Institute of Physics)
  • Talyshev A.A. (Novosibirsk State University)
  • Maksimov N.G. (Inst. of Chem. of Nat. Organ. Mat.)
  • Nizov V.A. (Inst. of Chem. of Nat. Organ. Mat.)
  • Anshits A.G. (Inst. of Chem. of Nat. Organ. Mat.)