Catalytic Oxidation of Alkanes by Organometallics in an In Situ Combustion Process

Yuan, Chengdong; Pu, Wanfen; Emelianov, Dmitrii A.; Mehrabi-Kalajahi, Seyedsaeed

doi:10.1021/acs.energyfuels.2c02121

Cited by 3 publications

(3 citation statements)

References 66 publications

(63 reference statements)

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“…On one hand, by reducing the content of heavy components such as alkanes above C 22 , resins, and asphaltenes and increasing the content of light components such as alkanes below C 21 and aromatics, the average molecular weight of crude oil is reduced. On the other hand, the desulphurization and denitrification reactions can reduce the heteroatom content in crude oil and reduce intermolecular forces to achieve a substantial irreversible viscosity reduction in heavy oil [37][38][39][40][41][42].…”

Section: In-situ Upgrading Of Heavy Oilmentioning

confidence: 99%

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

Chen

Cai

et al. 2023

Energies

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In situ catalytic upgrading of heavy oil decomposes viscous heavy oil underground through a series of complex chemical and physical reactions with the aid of an injected catalyst, and permits the resulting lighter components to flow to the producer under a normal pressure drive. By eliminating or substantially reducing the use of steam, which is prevalently used in current heavy oil productions worldwide and is a potent source of contamination concerns if not treated properly, in situ catalytic upgrading is intrinsically environmental-friendly and widely regarded as one of the promising techniques routes to decarbonize the oil industry. The present review provides a state-of-the-art summarization of the technologies of in situ catalytic upgrading and viscosity reduction in heavy oil from the aspects of catalyst selections, catalytic mechanisms, catalytic methods, and applications. The various types of widely used catalysts are compared and discussed in detail. Factors that impact the efficacy of the in situ upgrading of heavy oil are presented. The challenges and recommendations for future development are also furnished. This in-depth review is intended to give a well-rounded introduction to critical aspects on which the in situ catalytic application can shed light in the development of the world’s extra heavy oil reservoirs.

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Section: In-situ Upgrading Of Heavy Oilmentioning

confidence: 99%

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

Chen

Cai

et al. 2023

Energies

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“…In 2022, Yuan et al found similar results, when evaluating the performance of γ-Fe 2 O 3 catalysts by using thermal effect cells in porous medium (PMTEC). In a similar work, the same group developed the catalytic oxidation of alkanes by organometallics in an ISC process . The stabilization of the combustion front via bimetallic Mn@Cu tallates during crude oil oxidation was also explored .…”

Section: Introductionmentioning

confidence: 99%

“…In a similar work, the same group developed the catalytic oxidation of alkanes by organometallics in an ISC process. 34 The stabilization of the combustion front via bimetallic Mn@Cu tallates during crude oil oxidation was also explored. 35 Furthermore, the mechanistic and kinetic study was performed for a catalytic ISC of a heavy crude oil.…”

Section: Introductionmentioning

confidence: 99%

Compositional Effect on the Low-Temperature Oxidation of Crude Oils Subjected to In Situ Combustion

et al. 2023

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This work shows the compositional effect on low-temperature oxidation of crude oils subjected to in situ combustion (ISC). Three heavy crudes were used in this study in which detailed information on the molecular species involved in ISC was obtained by ultra-high-resolution mass spectrometry. The oxidation was carried out on a mixture of 2% of crude oil in Ottawa sand in an isothermal cell using a batch system at 1500 psi at three conditions: (i) reservoir temperature of each crude oil, (ii) 180 °C, and (iii) 180 °C using a heterogeneous catalyst-type β-MnO 2 . The oil remaining after the reaction was extracted from the sand and characterized by FT-ICR MS using (+) atmospheric pressure photoionization and (−) electrospray ionization modes. The acidity of the oxidation products (extracts) and the composition of the produced carbon oxides were also monitored. A greater amount of carbon oxides produced, a lower extraction yield of organic matter in the sand after the reaction, and a higher acidity in the extracts, implied a higher reactivity. In the same sense, a higher reactivity was observed for the sample with the highest sulfur content and over the most aromatic compounds. The use of the catalyst at 180 °C promoted the oxidative reactions in two of three of the oils, as well as the formation of polyoxygenated acids over monocarboxylic acids for one of the oils, which implies that the application of this technology strongly depends on the composition of the oil.

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Improving the in-situ upgrading of extra heavy oil using metal-based oil-soluble catalysts through oxidation process for enhanced oil recovery

Nejad Zare,

Mehrabi-Kalajahi,

Varfolomeev

et al. 2024

J Petrol Explor Prod Technol

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The demand for fuel from unconventional sources is increasing all over the world, however, there are still special and strict regulations regarding the methods of enhanced oil recovery as well as the content of the oil produced, including the amount of sulfur. In-situ combustion (ISC) is an attractive thermal method to enhance oil recovery and in-situ upgrading process. In this work, copper (II) oleate and copper (II) stearate were used for the oxidation of extra heavy oil with high sulfur content in the ISC process using a self-designed porous medium thermo-effect cell (PMTEC) and visual combustion tube. Using PMTEC the catalytic performances of the synthesized oil-soluble copper (II) oleate and copper (II) stearate and kinetic parameters such as activation energy using Ozawa-Flynn-Wall method were studied. The X-ray diffraction (XRD) and high-resolution field emission scanning electron microscopy were used to examine the characteristics of in-situ synthesized CuO nanoparticles during oxidation. As shown, the presence of oil-soluble copper (II) stearate and copper (II) oleate reduced oil viscosity from 9964 to 8000 and 6090 mPa˙s, respectively. Following ISC process in porous media in the presence of copper (II) oleate, the high sulfur extra heavy oil upgraded, and its sulfur content decreased from 10.33 to 6.79%. Additionally, SARA analysis revealed that asphaltene and resin content decreased in the presence of oil-soluble catalysts. During the oxidation reaction, homogeneous catalyst decomposed into nanoparticles, and heterogeneous catalyst is distributed uniformly in porous media and played an active role in the catalytic process. It should be noticed that, these kind of oil-soluble catalysts can be novel and highly potential candidates for initiation and oxidation of extra heavy oil in order to decrease the viscosity, enhanced oil recovery and production of the upgraded oil. Graphical abstract

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Catalytic Oxidation of Alkanes by Organometallics in an In Situ Combustion Process

Cited by 3 publications

References 66 publications

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

Compositional Effect on the Low-Temperature Oxidation of Crude Oils Subjected to In Situ Combustion

Improving the in-situ upgrading of extra heavy oil using metal-based oil-soluble catalysts through oxidation process for enhanced oil recovery

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