A review on novel applications of asphaltenes: A valuable waste

Kamkar, Milad; Natale, Giovanniantonio

doi:10.1016/j.fuel.2020.119272

Cited by 65 publications

(47 citation statements)

References 118 publications

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“…Asphaltenes have significant potential to be upcycled into value-added products. − Specifically, the polycyclic aromatic core of asphaltenes can be utilized in a manner similar to high value carbon nanomaterials, such as graphene. For example, asphaltenes have been chemically treated to synthesize high value graphene-like carbon nanomaterials for applications in batteries and electronic material, polymer composites, and catalysis, as shown in Figure B. ,− Microfluidic devices offer a facile method to synthesize and test new materials derived from asphaltenes.…”

Section: Future Directionsmentioning

confidence: 99%

Physicochemical Characterization of Asphaltenes Using Microfluidic Analysis

et al. 2022

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Crude oils are complex mixtures of organic molecules, of which asphaltenes are the heaviest component. Asphaltene precipitation and deposition have been recognized to be a significant problem in oil production, transmission, and processing facilities. These macromolecular aromatics are challenging to characterize due to their heterogeneity and complex molecular structure. Microfluidic devices are able to capture key characteristics of reservoir rocks and provide new insights into the transport, reactions, and chemical interactions governing fluids used in the oil and gas industry. Understanding the microscale phenomena has led to better design of macroscale processes used by the industry. One area that has seen significant growth is in the area of chemical analysis under flowing conditions. Microfluidics and microscale analysis have advanced the understanding of complex mixtures by providing in situ imaging that can be combined with other chemical characterization methods to give details of how oil, water, and added chemicals interface with pore-scale detail. This review article aims to showcase how microfluidic devices offer new physical, chemical, and dynamic information on the behavior of asphaltenes. Specifically, asphaltene deposition and related flow assurance problems, interfacial properties and rheology, and evaluation of remediation strategies studied in microchannels and microfluidic porous media are presented. Examples of successful applications that address key asphaltene-related problems highlight the advances of microscale systems as a tool for advancing the physicochemical characterization of complex fluids for the oil and gas industry.

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Section: Future Directionsmentioning

confidence: 99%

Physicochemical Characterization of Asphaltenes Using Microfluidic Analysis

et al. 2022

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“…In the current report, we prefer asphaltenes to prepare porous carbon precursor structures because asphaltenes feature easy-to-run cross-linking reactions, and they are inexpensive and easily available . In addition, the proposed structures, such as the archipelago model; the modified Yen–Mullins model; and the recently suggested model, namely “aryl-linked core”, on asphaltenes help with both resolving structure–function relationships and revealing the potential reactivity of asphaltenes .…”

Section: Introductionmentioning

confidence: 99%

Obtaining Nanoporous Polycyclic Aromatic Hydrocarbon Networks by Cross-Linking Asphaltenes

Samuel

2021

Energy Fuels

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The complexity in the chemical structure of asphaltenes has the potential to be utilized in generating novel materials. In the present study, three different asphaltene samples derived from heavy and light crude oils are cross-linked in a chlorinated solvent. Diffuse reflectance infrared Fourier transform spectroscopy was used for the identification of functional groups and aliphatic-to-aromatic ratios type index values of cross-linked asphaltenes. Raman spectra of asphaltenes showed an increase in average molecular dimensions of cross-linked asphaltenes compared to the original asphaltenes without cross-linking. A porous network-type structure is proposed for explaining the structure of the cross-linked asphaltenes, and this is revealed by surface area analysis. It seems that it is possible to cross-link asphaltenes independent of their geographical origin. The experimental procedure here could be applied for similar materials as well. The cross-linked asphaltenes with porous network-type structure might act as a precursor material for making activated porous carbons, a carbonaceous scaffold for synthesizing novel materials in the confined state, and for modifying surfaces of nanomaterials.

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“…9 The presence of the destabilized asphaltenes may lead to major pipelines and wellbore blockages, 10 formation and stabilization of emulsions, adsorption onto process equipment, 11 plugging while oils are stored, fouling and corrosion of production equipment, catalyst deactivation, 12,13 and coke formation. 14,15 Asphaltenes can also be defined by a large number of aromatic rings with a hydrogen/carbon (H/C) ratio of 1.15 ± 0.05%. 16 Depending on the crude oil source, 17 the molecular weight of asphaltene molecules ranges from 250 to 1200 g/ mol.…”

Section: Introductionmentioning

confidence: 99%

“…Already at the well, the presence of a high amount of asphaltenes can cause reduced oil recovery through altering the reservoir properties such as wettability and plugging of the rock pores, − as well as the formation of solid deposits within the wells . The presence of the destabilized asphaltenes may lead to major pipelines and wellbore blockages, formation and stabilization of emulsions, adsorption onto process equipment, plugging while oils are stored, fouling and corrosion of production equipment, catalyst deactivation, , and coke formation. , …”

Section: Introductionmentioning

confidence: 99%

Review on Application of Nanotechnology for Asphaltene Adsorption, Crude Oil Demulsification, and Produced Water Treatment

et al. 2021

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Nanotechnology is widely recognized for having important applications in many industries, one of which is oil and gas. Both environmental and cost benefits can be achieved when using nanoparticles for the separation of water and oil or further purification of produced water. More efficient emulsion separation can be achieved by selective adsorption of naturally present stabilizing components or magnetic action applied to nanoparticle-tagged droplets. The focus of this review is given to both nanoparticles and nanocomposites that have been studied with respect to asphaltene adsorption, crude oil demulsification, and produced water treatment, as well as oil spill cleanup and improvement of antifouling resistance of filtration membranes. Asphaltene chemistry and its role in emulsion stabilization are discussed in detail.

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A review on novel applications of asphaltenes: A valuable waste

Cited by 65 publications

References 118 publications

Physicochemical Characterization of Asphaltenes Using Microfluidic Analysis

Physicochemical Characterization of Asphaltenes Using Microfluidic Analysis

Obtaining Nanoporous Polycyclic Aromatic Hydrocarbon Networks by Cross-Linking Asphaltenes

Review on Application of Nanotechnology for Asphaltene Adsorption, Crude Oil Demulsification, and Produced Water Treatment

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