000			01722nab a2200181 4500
005			20260520000831.0
008			260224s2009 xxu
245	0	0	_aRecovery of lighter fuels by cracking heavy oil with Zirconia -Alumina- Iron Oxide Catalysts in a Steam Atmosphere
260			_a _b _cmar./abr. 2009
270			_a2009-08-12 ; 2009-08-12
300			_a4 p. ; 1338-1341
520			_aResúmen del autor: This paper describes catalytic cracking, with zirconia-supporting iron oxide catalysts in a steam atmosphere, of heavy oil, such as petroleum residual oil, to recover as much lighter fuel as possible. In this process, the heavy oil reacts with active oxygen species generated from steam over the iron oxide catalyst and significant amounts of lighter fractions and carbon dioxide are produced with almost no coke. Active hydrogen species generated from steam are added to the heavy and middle fractions, producing gasoline, kerosene, and gas oil (boiling points less than 350 °C). Large amounts of these lighter fuels (48 mol % C) were produced by the catalytic cracking of residual oil, which contained 93 mol % C of heavy oil fraction (boiling points above 350 °C), with a zirconia-alumina-iron oxide catalyst at 500 °C, with lesser amounts (20 mol % C) at 450 °C. More alumina was mixed to the catalyst to promote the cracking of heavy oil at lower temperatures. This modified catalyst was found to be better for cracking heavy oil, even at 450 °C, and the total amount of lighter fuels was as large as that obtained at 500 °C
773	0		_tEnergy & fuels _g23
942			_cARTICULO
100	1		_aFumoto, Eri _934508
100	1		_aMatsumura, Akimitsu _941777
999			_c170290 _d170290