Experimental and kinetic study of catalytic cracking of heavy fuel oil over E-CAT/MCM-41 catalyst

CATEGORY: HEAVY FUEL OIL
Experimental and kinetic study of catalytic cracking of heavy fuel oil over E-CAT/MCM-41 catalyst

Type	Journal Article
Author	A. A. Ebrahimi
Author	S. Tarighi
URL	http://link.springer.com/article/10.1134/S0023158416050098
Volume	57
Issue	5
Pages	610-616
Publication	Kinetics and Catalysis
Date	2016/09/01
Abstract	Reports a study of the catalytic cracking of heavy fuel oil over the equilibrium fluid catalytic cracking catalyst (E-Cat) as a base component with the mesoporous MCM-41 as an additive. Researchers examined the catalytic performance of the E-Cat/MCM-41 system in a fixed-bed MAT unit. The yields of products including light olefins, liquefied petroleum gas (LPG), gasoline, dry gas, coke and also the conversions obtained over different temperatures were reported and some generalities discussed. The maximum yield of propylene (17.5%) was obtained at 550°C whereas the highest conversion and gasoline yield was gained at 530°C. An eight-lump kinetic model containing 11 kinetic parameters was considered. Those parameters were estimated based on experimental data at specific temperatures by fourth order Runge–Kutta algorithm and the least square method. In addition, Arrhenius equation was used to calculate apparent activation energies.

The Influence of Temperature and Catalyst Additives on Catalytic Cracking of a Heavy Fuel Oil

CATEGORY: HEAVY FUEL OIL
The Influence of Temperature and Catalyst Additives on Catalytic Cracking of a Heavy Fuel Oil

Type	Journal Article
Author	A. AfsharEbrahimi
Author	S. Tarighi
URL	http://dx.doi.org/10.1080/10916466.2014.987298
Volume	33
Issue	4
Pages	415-421
Publication	Petroleum Science and Technology
Date	February 16, 2015
Abstract	Describes results of a study of the effects of reaction temperature and catalyst additives on fluid catalytic cracking (FCC) products yield through cracking of a heavy fuel oil obtained from Tehran refinery. Researchers examined the catalytic performance using a commercial equilibrium USY FCC catalyst (E-Cat) in a fixed-bed micro-activity test unit. Two types of ZSM-5 zeolites with different SiO2/Al2O3 ratios together with MCM-41 were tested as additives. Reaction temperatures of 550, 600 and 640°C were studied for the corresponding E-Cat/Additives. MAT results revealed that more propylene and the highest propylene to ethylene ratio can be obtained via E-Cat/MCM-41 at 550°C. Applying ZSM-5 zeolite led to enhancement in total olefins production. Different behaviors were observed using two ZSM-5 additives. Butenes production followed a similar fashion through all additives at the three temperatures tested.