Dodecylbenzenesulfonic Acid as a Bitumen Modifier: A Novel Approach To Enhance Rheological Properties of Bitumen

Ortega, Francisco; Navarro, Francisco; García‐Morales, M.

doi:10.1021/acs.energyfuels.7b00419

Cited by 20 publications

(12 citation statements)

References 33 publications

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“…It means that SDS, as an anionic surfactant, can reduce the π–π interactions between asphaltene molecules, and it can be considered as an asphaltene dispersant. This finding confirms the previous experimental works published in the literature. − For CTAB and CAPB surfactants, both dimers and trimers with π–π interactions were observed; however, in the case of TX-100, the configuration of the archipelago architecture is mainly dimers, and for the island architecture, a trimer is dominant (see Supporting Information).…”

Section: Resultssupporting

confidence: 89%

Insight into the Interfacial Behavior of Surfactants and Asphaltenes: Molecular Dynamics Simulation Study

Ahmadi

Chen

2020

Energy Fuels

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Heavy oil and bitumen drive the leading energy supply in Canada. Several techniques, including in situ thermal methods and mining, have been applied to the recovery of these unconventional resources. Nowadays, to improve the efficiency of in situ thermal methods, coinjection of steam and different types of additives, including chemicals, solvents, and noncondensable gases, is being investigated. Adding these additives to steam can reduce the required amount of steam and, as a result, lowers carbon dioxide emissions; meanwhile, the oil production can be improved. Different interaction mechanisms contribute to oil recovery in each type of additives. In this paper, we focused on the investigation of mechanisms using surfactant additives. One of the primary behaviors that needs to be fully understood is the interfacial behavior of surfactant molecules and asphaltene molecules, the key component of heavy oil and bitumen. Four different types of surfactants, including anionic, cationic, nonanionic, and amphoteric, were employed to study the interaction parameters between asphaltene and surfactant molecules. Two different asphaltene molecules with the archipelago and island architectures were extracted from oil sands from the Athabasca oil field in Alberta, Canada. All thermodynamic conditions were chosen based on the operational steam-assisted gravity drainage (SAGD) conditions. For the sake of comparison, different molecular analyses, including the radial distribution functions (RDFs), interfacial thickness, solubility parameter, and hydrogen bond numbers, were used. According to the results of this study, the anionic surfactant has a good interaction with asphaltenes, and it can lessen the aggregation of asphaltenes. The outcomes of this paper provide useful information to have a deeper understanding on how a surfactant interacts with asphaltene under the thermodynamic conditions of a surfactant− steam coinjection process.

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Section: Resultssupporting

confidence: 89%

Insight into the Interfacial Behavior of Surfactants and Asphaltenes: Molecular Dynamics Simulation Study

Ahmadi

Chen

2020

Energy Fuels

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“…% of dodecyl benzene sulfonic acid (DBSA), the asphaltene precipitation could be completely controlled. Similarly, Ortega et al [10], suggested that the attachment of DBSA to asphaltene molecules with 3 wt % DBSA could noticeably improve the rheological properties of bitumen. Hashmi et al [11] studied the capability of commonly available surfactant aerosol-OT (AOT) to stabilize asphaltene suspensions in heptane.…”

Section: Introductionmentioning

confidence: 88%

Controlled releases of asphaltene inhibitors by nanoemulsions

Alhreez

Wen

2018

Fuel

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Asphaltene precipitation is usually responsible for many flow assurance problems such as wettability changes and pore clogging in reservoirs, fouling in wellbore tubings and production surface facilities. This study develops a novel approach by using nanoemulsions (NE) for controlled delivery and release of asphaltene inhibitors (AI) to minimize asphaltene precipitation with reduced AI amount. LUMiSizer was utilised to study the effectiveness and performance of controlled release by three cases on asphaltene sedimentation: i) strong organic acids (dodecyl benzene sulfonic acid, DBSA), ii) nanoemulsions (blank NEs), and iii) nanoemulsions loaded with DBSA (DBSA NEs). The experiments suggested that the optimum inhibitor concentration for completely stabilizing asphaltene were 4 vol. % for DBSA. This amount of inhibitor can be significantly reduced by ~ 20 times by using the DBSA NEs, and the release time can be greatly extended. A mechanistic understanding of the controlled release effect is proposed based on interfacial properties and electron microscopic studies, which is related to the hydrophilicity of DBSA and the strong intermolecular interactions among all DBSA NE's components and the asphaltene molecules.

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“…To date, various modifiers have been employed to obtain the required compatibility and reduce the phase separation during polymer modification of bitumen. Among the most common modifiers: reactive polymers, polyphosphoric acid, organometallic compounds, sulfonic acid, silanes, maleic anhydride, carboxylic anhydride, thiourea dioxide, sulphur, antioxidants, nanomaterials, clay minerals, plasticizers, and bio-oil [ 4 , 105 , 162 , 205 , 210 , 285 , 286 , 287 , 288 , 289 ]. Table 5 lists different the chemical modifiers used for plastomeric bitumen modification.…”

Section: Enhancements Of Plastomer-modified Bitumen Due To Chemical Modifiersmentioning

confidence: 99%

Sustainable Polymers from Recycled Waste Plastics and Their Virgin Counterparts as Bitumen Modifiers: A Comprehensive Review

2021

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The failure of bituminous pavements takes place due to heavy traffic loads and weather-related conditions, such as moisture, temperature, and UV radiation. To overcome or minimize such failures, a great effort has been put in recent years to enhance the material properties of bitumen, ultimately improving field performance and increasing the pavement service life. Polymer modification is considered one of the most suitable and by far the most popular approach. Elastomers, chemically functionalised thermoplastics and plastomers * (* Note: notwithstanding the fact that in Polymer Science the word ‘plastomer’ indicates a polymer with the simultaneous behaviour of an elastomer and plastics (thermoplastics), this paper uses the term ‘plastomer’ to indicate a thermoplastic polymer as it is more commonly found in Civil and Pavement Engineering.) are the most commonly used polymers for bitumen modification. Plastomers provide several advantages and are commonly acknowledged to improve high-temperature stiffness, although some of them are more prone to phase separation and consequent storage instability. Nowadays, due to the recent push for recycling, many road authorities are looking at the use of recycled plastics in roads. Hence, some of the available plastomers—in pellet, flakes, or powder form—are coming from materials recycling facilities rather than chemical companies. This review article describes the details of using plastomers as bitumen modifiers—with a specific focus on recycled plastics—and how these can potentially be used to enhance bitumen performance and the road durability. Chemical modifiers for improving the compatibility between plastomers and bitumen are also addressed in this review. Plastomers, either individual or in combination of two or three polymers, are found to offer great stiffness at high temperature. Different polymers including HDPE, LDPE, LLDPE, MDPE, PP, PS, PET, EMA, and EVA have been successfully employed for bitumen modification. However, each of them has its own merit and demerit as thoroughly discussed in the paper. The recent push in using recycled materials in roads has brought new light to the use of virgin and recycled plastomers for bitumen modification as a low-cost and somehow environmental beneficial solution for roads and pavements.

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Dodecylbenzenesulfonic Acid as a Bitumen Modifier: A Novel Approach To Enhance Rheological Properties of Bitumen

Cited by 20 publications

References 33 publications

Insight into the Interfacial Behavior of Surfactants and Asphaltenes: Molecular Dynamics Simulation Study

Insight into the Interfacial Behavior of Surfactants and Asphaltenes: Molecular Dynamics Simulation Study

Controlled releases of asphaltene inhibitors by nanoemulsions

Sustainable Polymers from Recycled Waste Plastics and Their Virgin Counterparts as Bitumen Modifiers: A Comprehensive Review

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