Houdry, EJ

Japanese: Houdry,E.J.(英語表記)HoudryEJ
Houdry, EJ

...The process of cracking heavy petroleum fractions using a catalyst to increase the production of high-octane gasoline. The principle of catalytic cracking was discovered in 1923 by E. J. Houdry of France. He discovered that when heated heavy petroleum oil was passed over a catalyst (activated clay) made by activating natural clay using sulfuric acid or alkali, a cracking reaction occurred and gasoline was obtained.

*Some of the terminology that mentions "Houdry, EJ" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…石油の重質留分を触媒を用いて分解し,高オクタン価ガソリンを増産するプロセスをいう。接触分解法の原理は,1923年にフランスのウドリーE.J.Houdryによって発見された。すなわち,彼は天然産の白土を硫酸やアルカリを用いて活性化した触媒(活性白土)上に加熱した石油系重質油を通ずると分解反応がおこり,ガソリンが得られることを見いだした。…

※「Houdry,E.J.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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