Steam reforming of methane over Ni-substituted Sr hexaaluminates

• Authors: Marina Bukhtiyarova , Aleksandra Ivanova , Elena Slavinskaya , Pavel Kuznetsov , Lyudmila Plyasova , Olga Stonkus , Vladimir Rogov , Vasilii Kaichev , Aleksandr Noskov
• Languages of publication: EN

Abstracts

EN

Ni-substituted Sr-aluminates Sr1-xNixAl11.2+xNi0.8-xO19-δ (x = 0; 0.2; 0.4; 0.8) obtained by a precipitation method and calcined at 1200°C have been characterized by different physicochemical techniques and their catalytic properties have been tested in steam reformation of methane. It has been shown that substitution of Al3+ and/or Sr2+ by Ni2+ in the aluminate structure results in changes of phase composition, specific surface area, and reducibility of samples. It has been established that the samples are not completely reduced in the temperature range of 30-900°C. The Sr1-xNixAl11.2+xNi0.8-xO19-δ (x = 0; 0.2; 0.4) catalysts are active and stable in the steam reforming of methane at 700oC: residual amount of methane is (1.1±1.0) vol.%, while the Sr1-xNixAl11.2+xNi0.8-xO19-δ (x = 0.8) sample is rapidly deactivated by coking.

Keywords

EN

Ni-substituted aluminates; Steam reforming; Methane; Catalyst

• Publisher: De Gruyter Open
• Journal: Catalysis for Sustainable Energy
• Year: 2012
• Volume: 1
• Pages: 11-21

Dates

received

16 - 4 - 2012

accepted

29 - 5 - 2012

online

9 - 8 - 2012

Contributors

author

Marina Bukhtiyarova

author

Aleksandra Ivanova

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Elena Slavinskaya

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Pavel Kuznetsov

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Lyudmila Plyasova

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Olga Stonkus

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Vladimir Rogov

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Vasilii Kaichev

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

author

Aleksandr Noskov

• Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, 630090, Novosibirsk, Russian Federation

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Identifiers

DOI

10.2478/cse-2012-0002