Mild hydrocracking of bitumen-derived coker and hydrocracker heavy gas oils: kinetics, product yields, and product properties

Yui, Sok; Sanford, Emerson C.

doi:10.1021/ie00093a002

Cited by 67 publications

(35 citation statements)

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“…Different kinetic approaches have been reported in the literature for the hydrocracking of oil fractions (lumping approach, continuous kinetics lumping, single event model) [1][2][3][4][5][6][7][8], but only a few deal with the hydrocracking of heavy oil. Because vacuum gas oil has been mostly used as feed, catalyst deactivation has been neglected.…”

Section: Introductionmentioning

confidence: 99%

Kinetic model for hydrocracking of heavy oil in a CSTR involving short term catalyst deactivation

Martínez

Ancheyta

2012

Fuel

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Section: Introductionmentioning

confidence: 99%

Kinetic model for hydrocracking of heavy oil in a CSTR involving short term catalyst deactivation

Martínez

Ancheyta

2012

Fuel

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“…The model represented good validation at 375 and 400 o C, but at 415 o C the fits were bad. Another kinetic model for gas oil hydrocracking was proposed by Yui and Sandford [12]. In this case, pilot scaled experiments were performed in a trickle-bed reactor at various different operating conditions.…”

Section: Introductionmentioning

confidence: 99%

4-Lump kinetic model for vacuum gas oil hydrocracker involving hydrogen consumption

Sadighi

Ahmad

Rashidzadeh³

2010

Korean J. Chem. Eng.

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A 4-lump kinetic model including hydrogen consumption for hydrocracking of vacuum gas oil in a pilot scale reactor is proposed. The advantage of this work over the previous ones is consideration of hydrogen consumption, imposed by converting vacuum gas oil to light products, which is implemented in the kinetic model by a quadratic expression as similar as response surface modeling. This approach considers vacuum gas oil (VGO) and unconverted oil as one lump whilst others are distillate, naphtha and gas. The pilot reactor bed is divided into hydrotreating and hydrocracking sections which are loaded with different types of catalysts. The aim of this paper is modeling the hydrocracking section, but the effect of hydrotreating is considered on the boundary condition of the hydrocracking part. The hydrocracking bed is considered as a plug flow reactor and it is modeled by the cellular network approach. Initially, a kinetic network with twelve coefficients and six paths is considered. But following evaluation using measured data and order of magnitude analysis, the three route passes and one activation energy coefficient are omitted; thus the number of coefficients is reduced to five. This approach improves the average absolute deviation of prediction from 7.2% to 5.92%. Furthermore, the model can predict the hydrogen consumption for hydrocracking with average absolute deviation about 8.59% in comparison to those calculated from experimental data.

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“…The total liquid products (TLPs) were distilled into naphtha, LGO, and HGO cuts, and the properties of each fraction were determined, including cetane index of the LGO cut. The results are reported elsewhere (Yui and Sanford, 1989). Recently, Valavarasu et al (2003) reviewed the MHC process and its catalysts and reaction kinetics.…”

Section: Introductionmentioning

confidence: 96%

Catalyst Deactivation, Kinetics, and Product Quality of Mild Hydrocracking of Bitumen-Derived Heavy Gas Oils

Yui

Dodge

2006

Petroleum Science and Technology

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To assess mild hydrocracking as an option to improve the quality of the heavy gas oil (HGO) fraction of Syncrude's synthetic crude oil (known as Syncrude Sweet Blend or SSB), severe hydrotreating tests were performed by using Athabasca oilsands bitumen-derived coker HGO, heavy vacuum gas oil, and a blend of the two in a pilot-scale down-flow reactor over a typical commercial NiMo/Al 2 O 3 hydrotreating catalyst. Kinetics of sulfur and nitrogen removal, 343 • C+ conversion, and aromatics hydrogenation were investigated by incorporating the effect of catalyst deactivation. The total liquid products (TLPs) from the pilot tests were distilled into naphtha, light gas oil (LGO), and HGO fractions, and the TLPs and distilled products were characterized. Cetane number (CN) was determined by engine test for selected LGOs and by ignition quality tester for all LGOs. The quality of product HGOs as fluid catalytic cracking (FCC) unit feedstock was evaluated by using correlations (developed based on feed properties including GC-MS data) to predict FCC product yields. The CN of the LGOs and the predicted gasoline yields from HGO products were much better than that produced from the corresponding fractions of current SSB. The CN and FCC gasoline yield were related to the level of 343 • C+ conversion (i.e., the higher the conversion, the higher the CN and FCC gasoline yield).

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Mild hydrocracking of bitumen-derived coker and hydrocracker heavy gas oils: kinetics, product yields, and product properties

Cited by 67 publications

References 0 publications

Kinetic model for hydrocracking of heavy oil in a CSTR involving short term catalyst deactivation

Kinetic model for hydrocracking of heavy oil in a CSTR involving short term catalyst deactivation

4-Lump kinetic model for vacuum gas oil hydrocracker involving hydrogen consumption

Catalyst Deactivation, Kinetics, and Product Quality of Mild Hydrocracking of Bitumen-Derived Heavy Gas Oils

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