Catalytic upgrading of heavy oil using NiCo/γ-Al2O3 catalyst: Effect of initial atmosphere and water-gas shift reaction

Avbenake, Onoriode P.; Al‐Hajri, Rashid; Jibril, Baba Y.

doi:10.1016/j.fuel.2018.08.074

Cited by 19 publications

(10 citation statements)

References 35 publications

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“…On the contrary, one would expect that the high composition of hydrogen reported in the experiment without steam would increase the upgrading, lower coke formation or improve olefin saturation. Nevertheless, it has been reported that the proton formed via water gas shift reaction has higher hydrogenating reactivity than others [13].…”

Section: Syngas To Hydrogenmentioning

confidence: 81%

“…Heavy crude oil and bitumen upgrading technologies can be classified into; carbon rejection, hydrogen addition (hydrocracking) and separation processes [13,14]. Hydrocracking is a process of upgrading heavy crude oil in the presence of hydrogen and a suitable catalyst, whereby the latter is usually dual functional with the hydrogenating and cracking sites, while the former inhibits secondary reactions that produce coke [15].…”

Section: Heavy Oil Upgradingmentioning

confidence: 99%

“…In heavy crude oil and bitumen upgrading where the hydrogen is supplied from syngas, the source is usually from water in-situ [13] or introduced into the reactor alongside feedstock [20,[25][26][27][28][29][30][31]. Irrespective of the method of providing water, the reactor would be pressurized in a neutral environment, usually nitrogen to mimic reservoir conditions.…”

Section: Catalytic Reaction In Neutral Environmentmentioning

confidence: 99%

“…Applications of syngas by way of water gas shift reaction have produced tremendous results in heavy oil upgrading. In the first place, sufficient reaction mechanisms have been used to explain the process [58,59], also successful field tests have been conducted [60], and lastly there are ample reports of obtaining better upgrading when hydrogen is supplied via water gas shift reaction as against pure hydrogen gas [13,27,61].…”

Section: Syngas To Hydrogenmentioning

confidence: 99%

See 3 more Smart Citations

Sustainability Effect of Water Gas Shift Reaction (Syngas) in Catalytic Upgrading of Heavy Crude Oil and Bitumen

Avbenake¹,

Yakasai²,

Jibril³

2019

Sustainable Alternative Syngas Fuel [Working Title]

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Industrial globalization and urbanization has placed man on a path for the quest of energy. Conspicuously there are various types and forms of energy with established technologies on harnessing and utilization wherein fossil fuel still remains the cheapest with straightforward application. Although, conventional fossil fuel resources are depleting because of population growth, unconventional reservoirs are exploited daily with limited production due to inadequate and expensive technology making them stand at approximately 9.1 trillion barrels poised to quell the world's energy insecurity for the next 100 years. The underlying basis for the high-cost of unconventional reservoirs upgrading is the hydrogen required to seal the alkyl chain after cracking to form low molecular weight hydrocarbons. Therefore, in this chapter we aim to provide a comprehensive review of in-situ generation of hydrogen from syngas via water gas shift reaction for the catalytic upgrading of heavy crude oil and bitumen by analyzing the gas chromatography results of gaseous effluents for the presence of syngas in the various works cited. Although, heavy crude oil and bitumen are non-renewable the upgrading method selected is tenable, appropriately the overall technology is partially sustainable.

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Section: Syngas To Hydrogenmentioning

confidence: 81%

Section: Heavy Oil Upgradingmentioning

confidence: 99%

Section: Catalytic Reaction In Neutral Environmentmentioning

confidence: 99%

Section: Syngas To Hydrogenmentioning

confidence: 99%

See 2 more Smart Citations

Sustainability Effect of Water Gas Shift Reaction (Syngas) in Catalytic Upgrading of Heavy Crude Oil and Bitumen

Avbenake¹,

Yakasai²,

Jibril³

2019

Sustainable Alternative Syngas Fuel [Working Title]

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“…The experiment pressurized by hydrogen generated no coke in contrast to the catalytic aquathermolysis carried out in a nitrogen environment, where 0.2 wt % of coke was observed. Meanwhile, the sulfur content and viscosity of the samples, which were reacted in a nitrogen environment, were higher compared to that of hydrogen [47]. Moreover, the share of C7-C30 homologues in the products of catalytic upgrading of heavy oil was higher than non-catalytic thermal cracking process [47,48].…”

Section: Nanocatalystsmentioning

confidence: 93%

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

et al. 2021

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The aquathermolysis process is widely considered to be one of the most promising approaches of in-situ upgrading of heavy oil. It is well known that introduction of metal ions speeds up the aquathermolysis reactions. There are several types of catalysts such as dispersed (heterogeneous), water-soluble and oil soluble catalysts, among which oil-soluble catalysts are attracting considerable interest in terms of efficiency and industrial scale implementation. However, the rock minerals of reservoir rocks behave like catalysts; their influence is small in contrast to the introduced metal ions. It is believed that catalytic aquathermolysis process initiates with the destruction of C-S bonds, which are very heat-sensitive and behave like a trigger for the following reactions such as ring opening, hydrogenation, reforming, water–gas shift and desulfurization reactions. Hence, the asphaltenes are hydrocracked and the viscosity of heavy oil is reduced significantly. Application of different hydrogen donors in combination with catalysts (catalytic complexes) provides a synergetic effect on viscosity reduction. The use of catalytic complexes in pilot and field tests showed the heavy oil viscosity reduction, increase in the content of light hydrocarbons and decrease in heavy fractions, as well as sulfur content. Hence, the catalytic aquathermolysis process as a distinct process can be applied as a successful method to enhance oil recovery. The objective of this study is to review all previously published lab scale and pilot experimental data, various reaction schemes and field observations on the in-situ catalytic aquathermolysis process.

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Preparation of Fe‐based magnetic‐core‐supported Co and Ni catalyst: application in viscosity reduction of heavy oil hydrocracking

Yan

Zhu

Wang

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDHeavy oil has the characteristics of high viscosity and low American Petroleum Institute gravity, which makes it difficult to transport and produce. The key to efficiently utilizing heavy oil is reducing viscosity and improving quality. Hydroconversion has the advantages of viscosity reduction and decreased coke production, but it is difficult to separate nonmagnetic catalysts from the reaction system, which affects the industrial application.RESULTSA spherical Fe3O4 (74.71 emu g−1) and a chain FeFe2O3 (110 emu g−1) were prepared as magnetic cores, and coated with SiO2 and Al2O3 layers, respectively. The metal‐supported catalyst modified with Co and Ni show irregular and honeycomb‐shaped surfaces, and the magnetic saturation strength decreases to 24.91 and 14.63 emu g−1, but still possessing superparamagnetic properties, enabling the catalysts to be separated from the reaction mixture. Fe‐Fe2O3@SiO2@Al2O3@CoNi catalyst has the best viscosity reduction effect for Canadian oil sands asphalt residue at about 410 °C and 10 MPa hydrogen pressure. The viscosity of the liquid product decreased significantly from 56 600 to 135 mPa s at 50 °C, with a viscosity reduction of 99.8%.CONCLUSIONMagnetic catalyst prepared from chain‐like Fe‐Fe2O3 has an excellent honeycomb structure, which can provide increased active surfaces and exhibit improved viscosity reduction performance. This work provides a strategy for the recovery of heavy oil hydrogenation catalysts and is expected to play a key role in the practical application of heavy oil hydrogenation catalytic viscosity reduction. © 2023 Society of Chemical Industry.

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Catalytic upgrading of heavy oil using NiCo/γ-Al2O3 catalyst: Effect of initial atmosphere and water-gas shift reaction

Cited by 19 publications

References 35 publications

Sustainability Effect of Water Gas Shift Reaction (Syngas) in Catalytic Upgrading of Heavy Crude Oil and Bitumen

Sustainability Effect of Water Gas Shift Reaction (Syngas) in Catalytic Upgrading of Heavy Crude Oil and Bitumen

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

Preparation of Fe‐based magnetic‐core‐supported Co and Ni catalyst: application in viscosity reduction of heavy oil hydrocracking

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