Energy efficient simultaneous oxidative conversion and thermal cracking of ethane to ethylene using supported BaO/La2O3 catalyst in the presence of limited O2

V. R. Choudhary and S. A. R. Mulla

Applied Energy, 2001, vol. 68, issue 4, 377-386

Abstract: An energy efficient conversion of ethane to ethylene involving simultaneous oxidative conversion (which is exothermic) and thermal cracking (which is endothermic) reactions of ethane in the presence of steam (steam/C2H6 mol RATIO=1.0) and limited O2 (C2H6/O2 mol ratio [greater-or-equal, slanted] 4.0) over a BaO-promoted La2O3 supported on low surface area macroporous silica-alumina commercial catalyst carrier has been thoroughly investigated. Influence of various process parameters such as temperature (700-850°C), C2H6/O2 feed ratio (4.0-8.0) and space velocity (50,000-200,000 cm3 g-1 h-1) on the conversion, product selectivity and net heat of reactions in the process has also been studied. At all the process conditions, there was no coke deposition on the catalyst. High selectivity ([greater-or-equal, slanted] 85%) for C2+ olefins (at 50-60% conversion) can be obtained in the process at a low contact time (

Keywords: Energy; efficient; conversion; of; ethane; to; ethylene; Simultaneous; of; exothermic; and; endothermic; reactions; Supported; Ba-promoted; La2O3; catalyst; Thermal; cracking; of; ethane; Oxidative; conversion; of; ethane (search for similar items in EconPapers)
Date: 2001
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