A new concept for catalysts of asphaltene conversion

Inoue, Satoshi; Takatsuka, Toru; Wada, Yusaku; Nakata, Shinichi; Ono, Takeo

doi:10.1016/s0920-5861(98)00151-5

Cited by 23 publications

(6 citation statements)

References 4 publications

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“…However, heavy and extra-heavy crude oils commonly do not exhibit problems of asphaltene precipitation and deposition due to the high content of asphaltenes and resins lead to the formation of a viscoelastic network that reduces the flow of crude oil due to the high viscosities [78]. In this sense, enhanced oil recovery (EOR) methods have been developed to facilitate the extraction of this type of crude oil by thermal processes that allow decomposing the asphaltene molecules or interrupt the viscoelastic network to generate reductions in viscosity [79,80]. The process involves the decomposition of the asphaltene molecules by effect of elevated temperatures under different atmospheres such as air [40,45,81,82], steam [83,84], inert [44,85,86], and air/steam.…”

Section: Physical-chemical Properties Of Heavy (Ho) Extra-heavy Crudmentioning

confidence: 99%

Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

et al. 2019

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The increasing demand for fossil fuels and the depleting of light crude oil in the next years generates the need to exploit heavy and unconventional crude oils. To face this challenge, the oil and gas industry has chosen the implementation of new technologies capable of improving the efficiency in the enhanced recovery oil (EOR) processes. In this context, the incorporation of nanotechnology through the development of nanoparticles and nanofluids to increase the productivity of heavy and extra-heavy crude oils has taken significant importance, mainly through thermal enhanced oil recovery (TEOR) processes. The main objective of this paper is to provide an overview of nanotechnology applied to oil recovery technologies with a focus on thermal methods, elaborating on the upgrading of the heavy and extra-heavy crude oils using nanomaterials from laboratory studies to field trial proposals. In detail, the introduction section contains general information about EOR processes, their weaknesses, and strengths, as well as an overview that promotes the application of nanotechnology. Besides, this review addresses the physicochemical properties of heavy and extra-heavy crude oils in Section 2. The interaction of nanoparticles with heavy fractions such as asphaltenes and resins, as well as the variables that can influence the adsorptive phenomenon are presented in detail in Section 3. This section also includes the effects of nanoparticles on the other relevant mechanisms in TEOR methods, such as viscosity changes, wettability alteration, and interfacial tension reduction. The catalytic effect influenced by the nanoparticles in the different thermal recovery processes is described in Sections 4, 5, 6, and 7. Finally, Sections 8 and 9 involve the description of an implementation plan of nanotechnology for the steam injection process, environmental impacts, and recent trends. Additionally, the review proposes critical stages in order to obtain a successful application of nanoparticles in thermal oil recovery processes.

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Section: Physical-chemical Properties Of Heavy (Ho) Extra-heavy Crudmentioning

confidence: 99%

Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

et al. 2019

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“…Sepiolite, a phyllosilicate mineral, is an interesting catalyst support characterised by its porous inner structure and fibrous morphology. Sepiolite has been widely studied as a catalyst support for a variety of hydrotreating reactions, [14][15][16][17] where doping with potassium or lanthanum, 18 incorporating metal oxides 19 and preparing the catalyst via precipitation 20,21 have further been employed to enhance its performance. Sepiolite has also been proven recently to be a favorable support for steam reforming reactions with its structural features contributing to high adsorption capacity with high stability.…”

Section: Introductionmentioning

confidence: 99%

Investigation of support effects during ethanol steam reforming over a Ni/sepiolite catalyst

Zhurka¹,

Anderson²,

McCue³

et al. 2023

React. Chem. Eng.

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“…In addition, heavy crude oil and extra-heavy crude oil reach values of dynamic viscosity between 100 and 10,000 cSt while the dynamic viscosity of bitumen is always greater than 10,000 cSt . Various studies indicate that the viscosity of extra-heavy crude oil or bitumen depends on the concentration and type of asphaltenes that are present in the crude oil and not by their chemical composition. , …”

Section: Introductionmentioning

confidence: 99%

“…1 Various studies indicate that the viscosity of extra-heavy crude oil or bitumen depends on the concentration and type of asphaltenes that are present in the crude oil and not by their chemical composition. 2,3 Bitumen exhibits higher viscosity than extra-heavy crude oil at pressure and temperature of the reservoir. While the former does not move at reservoir temperature, the latter has some degree of mobility, 4 which is the ratio of the effective permeability to the oil flow to its viscosity.…”

Section: Introductionmentioning

confidence: 99%

Required Viscosity Values To Ensure Proper Transportation of Crude Oil by Pipeline

2016

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Transportation of crude oils has recently received more attention than in the past; the main reason for this is because of the changes that petroleum production has experienced. The increasing availability of heavy and extra-heavy crude oil and the depletion of the production of light crude oil have motivated the midstream oil sector to search for methods to reduce the viscosity to values that ensure the transportation of crude oils by pipeline. The target for viscosity varies according to the type of crude oil and the region where it is transported. In order to define and propose a range of viscosity, the different reports in the literature were reviewed and it was concluded that the maximum value of viscosity to allow crude oil transportation ranges between 250 and 400 cSt at 37.8 °C.

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A new concept for catalysts of asphaltene conversion

Cited by 23 publications

References 4 publications

Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

Investigation of support effects during ethanol steam reforming over a Ni/sepiolite catalyst

Required Viscosity Values To Ensure Proper Transportation of Crude Oil by Pipeline

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