55 重質油の水蒸気分解における酸化鉄系触媒の高活性化(重質油・バイオマス・コプロセッシング(2))

概要

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Catalytic cracking of heavy oil, such as petroleum residual oil, with zirconia-alumina-iron oxide catalyst in a steam atmosphere was examined to recover lighter fuels. Heavy oil was oxidatively cracked with the active oxygen species generated from steam over the iron oxide catalyst, and lighter fractions and carbon dioxide were generated with almost no coke. The active hydrogen species generated from steam were added to the heavy and middle fractions, producing gasoline, kerosene and gas oil. Large amounts of these lighter fuels were produced by the catalytic cracking of heavy oil with the catalyst at 500℃, while the amount was less at 450℃. To promote the cracking heavy oil at 450℃, more alumina was added to the catalyst. As a result, this new catalyst was found to be more active for cracking heavy oil even at 450℃, and the amount of lighter fuels became equal to that at 500℃.
一般社団法人日本エネルギー学会の論文
2008-10-09