Use of Hydrogen Donors for Partial Upgrading of Heavy Petroleum

Alemán-Vázquez, Laura O.; Torres–Mancera, Pablo; Ancheyta, Jorge; Ramı́rez-Salgado, Joel

doi:10.1021/acs.energyfuels.6b01656

Cited by 74 publications

(52 citation statements)

References 93 publications

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“…The application of a standard hydrogen donor (tetralin) for large-scale production of synthetic fuel from alternative sources (coal, peat, slate, heavy oil residues and their fraction, etc.) is unpro table [16][17][18]. Therefore, a wide fraction of heavy oil residues with an end-boiling point of 300 C was chosen as the hydrogen donor (paste former).…”

Section: Methodsmentioning

confidence: 99%

Determining the Optimal Conditions for the Catalytic Hydrogenation of a Mixture of Tian Shan Coal and a Wide Fraction of Heavy Oil Residues with an End-Boiling Point of 300°C

et al. 2018

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The shortage of natural resources in the power industry combined with their increasing usage, price, and negative impact on the environment necessitates the search for new techniques of producing liquid fuel. One such possibility is the production of fuel and chemical products from coal via hydrogenation. The transformation of coal into liquid fuel is a complex technical process that requires saturating the initial substance with oxygen. Therefore, the purpose of this study is to determine the optimal conditions for the catalytic hydrogenation of a mixture of coal, Primary Coal Tar (PCT), and heavy oil residues with an end-boiling point of 300 C. The results show the optimal conditions for producing liquid fuel. The proposed technique allows achieving complete homogenization of all components and producing a highly stable coal paste. This technique also allows signi cantly reducing the negative impact on the environment.

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Section: Methodsmentioning

confidence: 99%

Determining the Optimal Conditions for the Catalytic Hydrogenation of a Mixture of Tian Shan Coal and a Wide Fraction of Heavy Oil Residues with an End-Boiling Point of 300°C

et al. 2018

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“…The authors concluded that addition of nickel carboxylates as oil-soluble catalyst leads to the increase in the hydrogen donating capacity of water. Alemán-Vázquez and co-workers [30] studied polycyclic naphtene and aromatic compounds, which can be reversibly hydrogenated and dehydrogenated in reaction mixture. They noted that such hydrogen donors significantly reduce the formation of coke after thermal treatment of heavy oil.…”

Section: Use Of Hydrogen Donorsmentioning

confidence: 99%

“…They noted that such hydrogen donors significantly reduce the formation of coke after thermal treatment of heavy oil. Thermodynamics and quantum chemistry methods were applied to study the relative hydrogen donating capacity of hydroderivatives of aromatic compounds: benzene, naphthalene, anthracene and phenanthrene depending on temperature and pressure [30,31]. Fujimoto et al studied hydrogenolysis of thiophene using decalin as a hydrogen donor and in the presence of carbon catalysts [32].…”

Section: Use Of Hydrogen Donorsmentioning

confidence: 99%

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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“…Hydrogen can be supplied directly as a pure gas [17][18][19][20], produced in-situ from chemical compounds and biological species [21][22][23][24], or extracted from syngas process in-situ via water gas shift reaction [20,[25][26][27][28]. In the first case, a significant amount of hydrogen proceed to hydrogen sulfide (H 2 S) [18,20] and the process is over the odds [19].…”

Section: Heavy Oil Upgradingmentioning

confidence: 99%

“…In the first case, a significant amount of hydrogen proceed to hydrogen sulfide (H 2 S) [18,20] and the process is over the odds [19]. The impediment of the second method is low conversion [22] and inability to operate at relatively higher reaction conditions due to biological species [23,24]. However, supply of hydrogen via syngas is inexpensive [25], has high conversion rate [26][27][28] and the reaction could be operated between low water gas shift reaction (200-350°C) [28,29] and high water gas shift reaction conditions (350-450°C) [20,27].…”

Section: Heavy Oil Upgradingmentioning

confidence: 99%

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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Use of Hydrogen Donors for Partial Upgrading of Heavy Petroleum

Cited by 74 publications

References 93 publications

Determining the Optimal Conditions for the Catalytic Hydrogenation of a Mixture of Tian Shan Coal and a Wide Fraction of Heavy Oil Residues with an End-Boiling Point of 300°C

Determining the Optimal Conditions for the Catalytic Hydrogenation of a Mixture of Tian Shan Coal and a Wide Fraction of Heavy Oil Residues with an End-Boiling Point of 300°C

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

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

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