Chemically Modified Activated Carbons as Catalysts of Oxidative Dehydrogenation of n-Butane

• Authors: A. Malaika , K. Wower , M. Kozłowski
• Languages of publication: EN

Abstracts

EN

Commercial availability and low price of light alkanes make them very attractive in many branches of industry. Potentially interesting is their use in the process of oxidative dehydrogenation leading to production of olefins. This study was undertaken to characterise the oxidative dehydrogenation of n-butane to 1,3-butadiene (important substrate in production of synthetic rubber and polyamides) taking place over the modified carbon catalysts obtained from peach stones precursor. The catalytic tests were performed in the temperature range 250-450°C at oxygen/n-butane ratio of 1:1. For the majority of the activated carbon samples studied at the lowest temperature the only product was CO_2. At 300°C the products of dehydrogenation of n-butane and side products appeared. With increasing temperature the amount of compounds generated increased and in the group of C4 hydrocarbons the dominant were 1-butene and 1,3-butadiene. The most effective catalyst was the sample oxidised with air, the least effective was the sample modified with ammonium peroxydisulphate.

Keywords

EN

81.05.Rm; 81.65.Mq; 81.40.Gh; 82.65.+r

Discipline

• 81.05.Rm: Porous materials; granular materials(for granular superconductors, see 74.81.Bd)
• 81.65.Mq: Oxidation(see also 64.75.Lm Phase separation and segregation in oxidation)
• 82.65.+r: Surface and interface chemistry; heterogeneous catalysis at surfaces(for temporal and spatial patterns in surface reactions, see 82.40.Np; see also 82.45.Jn Surface structure, reactivity and catalysis in electrochemistry; see also 68.43.-h Chemisorption/physisorption: adsorbates on surfaces)
• 81.40.Gh: Other heat and thermomechanical treatments

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 3
• Pages: 459-464

Dates

published

2010-09

Contributors

author

A. Malaika

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

author

K. Wower

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

author

M. Kozłowski

• Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.118.459