Differential scanning calorimetric study of heavy oil catalytic oxidation in the presence of manganese tallates

Khelkhal, Mohammed A.; Ескин, А. А.; Sharifullin, A. V.; Vakhin, Аlexey V.

doi:10.1080/10916466.2019.1581814

Cited by 19 publications

(13 citation statements)

References 12 publications

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“…This paper aims to validate our previous finding , about the utility of using oil-soluble catalysts based on tall oil in the in situ combustion process. Thus, we have studied the effect of heavy oil oxidation in the presence of nickel tallate and cobalt tallate as effective precatalysts for enhancing the oil oxidation process.…”

Section: Introductionsupporting

confidence: 53%

“…39 The combination of the aforementioned catalyst with tallates is a promising way to guarantee a high dispersion extent of catalytic agents during the oxidation process, as have been demonstrated in our previous works on iron 40 and manganese tallates. 41 This paper aims to validate our previous finding 40,41 about the utility of using oil-soluble catalysts based on tall oil in the in situ combustion process. Thus, we have studied the effect of heavy oil oxidation in the presence of nickel tallate and cobalt tallate as effective precatalysts for enhancing the oil oxidation process.…”

Section: Introductionmentioning

confidence: 67%

“…It possesses similar properties to nickel in terms of catalytic and behavioral aspects . The combination of the aforementioned catalyst with tallates is a promising way to guarantee a high dispersion extent of catalytic agents during the oxidation process, as have been demonstrated in our previous works on iron and manganese tallates …”

Section: Introductionmentioning

confidence: 82%

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Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

et al. 2019

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A remarkable feature of heavy oil oxidation during the in situ combustion process is the difficulty in maintaining combustion front to flow throughout the reservoir. Recent developments suggest the use of catalysts regarding this issue. Previous works have been limited by the catalyst choice. Moreover, many research works have failed to provide a catalyst that meets the requirements of efficiency, low-cost, and positive impact on the surrounding. This paper presents new type of catalysts based on tallate, each combined with nickel and cobalt, respectively, as highly efficient catalysts for the oxidation of heavy oil. We have compared the effect of each catalyst using differential scanning calorimetry to highlight kinetic parameters of each process by the Kissinger method. In addition, we employed thermogravimetric analysis and scanning electron microscopy to investigate the behavior of catalysts during the process. The obtained results showed a similar high efficiency of both precatalysts by decreasing the activation energy of the high-temperature oxidation region, increasing the preexponential factors of both high- and low-temperature oxidation regions, and increasing their reaction rate constants. Moreover, the precatalysts used transformed in situ to nanoparticles during the heavy oil oxidation process.

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Section: Introductionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 67%

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Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

et al. 2019

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“…27 In our previous works, we have applied oil-soluble catalysts in the process of heavy oil oxidation by means of differential scanning calorimetry (DSC) and showed good results in terms of decreasing the activation energy and increasing the frequency factor. 28,29 Nevertheless, oil-soluble catalysts are considered as effective agents for the oxidation of heavy oils because of their high solubility in oil media. When it comes to catalyst choice, high selectivity and consistency with a positive impact on the surroundings in addition to the economic efficiency of the process are critical parameters to take into consideration.…”

Section: ■ Introductionmentioning

confidence: 99%

Thermal Study on Stabilizing the Combustion Front via Bimetallic Mn@Cu Tallates during Heavy Oil Oxidation

et al. 2019

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Metal tallates are generating considerable interest as catalysts for thermally enhanced oil recovery. Meanwhile, in situ combustion is considered a promising thermally enhanced oil recovery method. It is still viewed as a complicated process as a result of its multiphasic, multicomponent, and multistep reactions occurring within it. In this study, we investigated the impact of Mn@Cu tallate on the heavy oil oxidation process to highlight its effect on stabilizing the combustion front using differential scanning calorimetry combined with an isoconversional principle for calculating the kinetic parameters of the process. The obtained data have showed that Mn@Cu tallate can play an important role in stabilizing the combustion front of in situ combustion, where it decreased the energy of activation of low-and high-temperature oxidation regions. As a result, the effective reaction rate constants in both regions increased as well.

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“…For the successful implementation of thermal and steam-thermal effects on the formation, it is necessary to know and determine the thermal effects caused by the material composition of the rocks and to be able to determine and select the optimal conditions for the implementation of technological processes of influence on the formation, namely, temperature and pressure. To solve these problems, thermal methods are used, in particular, thermogravimetry and differential scanning calorimetry (TG/DSC) [23,34,[43][44][45][46][47][48][49][50][51].…”

Section: The Thermal Effects Of the Om Oxidation Of Rock Samples Frommentioning

confidence: 99%

The Oil-Bearing Strata of Permian Deposits of the Ashal’cha Oil Field Depending on the Content, Composition, and Thermal Effects of Organic Matter Oxidation in the Rocks

et al. 2020

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The features of the oil-bearing capacity of the productive strata of Permian deposits in the interval of 117.5-188.6 m along the section of individual wells of the Ashal’cha field of heavy superviscous oil (Tatarstan) were revealed depending on the content, composition, and thermal effects of organic matter (OM) oxidation in the rocks. It is shown that the rocks are very heterogeneous in their mineral composition and in the content of both free hydrocarbons by extraction with organic solvents and insoluble OM closely associated with the rock. The total content of OM in rocks varies from 1.72 to 9.12%. The features of group and hydrocarbon composition of extracts from rocks are revealed depending on their mineral composition and the content of organic matter in them. According to the molecular mass distribution of alkanes of normal and isoprenoid structure, extracts from rocks are differentiated according to three chemical types of oil: type A1, in which n-alkanes of composition C14 and above are present, and types A2 and B2, in which n-alkanes are destroyed to varying degrees by processes microbial destruction, which indicates a different intensity of biochemical processes in productive strata of Permian sediments. These processes lead to a decrease in the amount of OM in the rocks and an increase in the content of resins and asphaltenes in the oil extracted from them, as well as an increase in the viscosity of the oil. Using the method of differential scanning calorimetry of high pressure, it was found that the studied rock samples differ from each other in quantitative characteristics of exothermic effects in both low-temperature (LTO) 200-350°С and high-temperature (HTO) 350-600°С zones of OM oxidation. The total thermal effect of destruction processes of OM depends on the content of OM in the rocks and its composition. The research results show that when heavy oil is extracted using thermal technologies, the Permian productive strata with both low and high OM contents will be involved in the development, and the general thermal effect of the oxidation of which will contribute to increased oil recovery.

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Differential scanning calorimetric study of heavy oil catalytic oxidation in the presence of manganese tallates

Cited by 19 publications

References 12 publications

Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

Thermal Study on Stabilizing the Combustion Front via Bimetallic Mn@Cu Tallates during Heavy Oil Oxidation

The Oil-Bearing Strata of Permian Deposits of the Ashal’cha Oil Field Depending on the Content, Composition, and Thermal Effects of Organic Matter Oxidation in the Rocks

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