Probing Interfacial Properties of Oil-field Pickering Emulsions from Refinery Desalters PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Probing Interfacial Properties of Oil-field Pickering Emulsions from Refinery Desalters PDF full book. Access full book title Probing Interfacial Properties of Oil-field Pickering Emulsions from Refinery Desalters by Mikhail Morunov. Download full books in PDF and EPUB format.
Author: Mikhail Morunov
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
"Demulsification of oil-field Pickering emulsions is a major challenge for the oil and gas industry. The most common, naturally occurring emulsifiers in petroleum products are asphaltenes, clay nanoparticles, resins, naphthenates and, inorganic particles. This study focused on two naturally-occurring emulsifiers: asphaltenes and clay nano-particles. Specifically, the effect of asphaltenes in combination with clay nano-particles, such as monmorillonite and kaolinite on model heptol-water interfaces was studied.The combined equilibrium surface excess associated with asphaltenes and clay nano-particles was attempted to be measured using the Langmuir isotherm coupled with the Gibbs surface energy (Langmuir EoS). Interfacial tension was measured using the pendant-drop method.Interfacial tension data showed the effect of asphaltenes on the heptol-water interface was inconsistent. It was likely because in addition to concentration, asphaltenes interfacial activity was also affected by the size of asphaltene aggregates in heptol, which is difficult to control. Furthermore, interfacial tension data showed that asphaltenes did not reach an equilibrium surface excess at the interface. The presence of n-heptane in heptol enhanced the adsorption of asphaltenes onto the heptol-water interfaces, causing continuous adsorption and forming a multilayer (physical barrier). This study suggests that n-heptane in crude oil creates a favourable environment for the formation of the interfacial barriers, and emulsions in general. This interfacial barrier likely prevents coalescence when emulsions are processed in electrostatic desalters.The pendant-drop method could not adequately measure the interfacial tension associated with the presence of clay nano-particles because kaolinite and monmorillonite precipitated in RO water.The combined equilibrium surface excess at the heptol-water interface could not be determined because of asphaltenes continuous adsorption, inconsistent experimental data, and the precipitation of clay nano-particles.Due to enhanced asphaltene adsorption in the presence of n-heptane and asphaltenes’ affinity toward clay nano-particles, asphaltenes and clay nano-particles were hypothesized to form a strong and complex network of aggregates at the heptol-water interface. Thus, asphaltene-clay aggregates at the interface were studied using model oil-in-water Pickering emulsions. The interfacial aggregates were characterized using an optical microscopy and material balances. Results showed that increasing the amount of montmorillonite nano-particles in the system enhanced the strength of the interface. On the other hand, asphaltenes and kaolinite nano-particles did not form any oil-in-water emulsions. This likely occurred because kaolinite acted as an inhibitor in the presence of asphaltenes and prevented emulsification. Future work should further test kaolinite as an inhibitor for emulsification, as it may be used to prevent emulsification in oil-field operations"--
Author: Mikhail Morunov
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
"Demulsification of oil-field Pickering emulsions is a major challenge for the oil and gas industry. The most common, naturally occurring emulsifiers in petroleum products are asphaltenes, clay nanoparticles, resins, naphthenates and, inorganic particles. This study focused on two naturally-occurring emulsifiers: asphaltenes and clay nano-particles. Specifically, the effect of asphaltenes in combination with clay nano-particles, such as monmorillonite and kaolinite on model heptol-water interfaces was studied.The combined equilibrium surface excess associated with asphaltenes and clay nano-particles was attempted to be measured using the Langmuir isotherm coupled with the Gibbs surface energy (Langmuir EoS). Interfacial tension was measured using the pendant-drop method.Interfacial tension data showed the effect of asphaltenes on the heptol-water interface was inconsistent. It was likely because in addition to concentration, asphaltenes interfacial activity was also affected by the size of asphaltene aggregates in heptol, which is difficult to control. Furthermore, interfacial tension data showed that asphaltenes did not reach an equilibrium surface excess at the interface. The presence of n-heptane in heptol enhanced the adsorption of asphaltenes onto the heptol-water interfaces, causing continuous adsorption and forming a multilayer (physical barrier). This study suggests that n-heptane in crude oil creates a favourable environment for the formation of the interfacial barriers, and emulsions in general. This interfacial barrier likely prevents coalescence when emulsions are processed in electrostatic desalters.The pendant-drop method could not adequately measure the interfacial tension associated with the presence of clay nano-particles because kaolinite and monmorillonite precipitated in RO water.The combined equilibrium surface excess at the heptol-water interface could not be determined because of asphaltenes continuous adsorption, inconsistent experimental data, and the precipitation of clay nano-particles.Due to enhanced asphaltene adsorption in the presence of n-heptane and asphaltenes’ affinity toward clay nano-particles, asphaltenes and clay nano-particles were hypothesized to form a strong and complex network of aggregates at the heptol-water interface. Thus, asphaltene-clay aggregates at the interface were studied using model oil-in-water Pickering emulsions. The interfacial aggregates were characterized using an optical microscopy and material balances. Results showed that increasing the amount of montmorillonite nano-particles in the system enhanced the strength of the interface. On the other hand, asphaltenes and kaolinite nano-particles did not form any oil-in-water emulsions. This likely occurred because kaolinite acted as an inhibitor in the presence of asphaltenes and prevented emulsification. Future work should further test kaolinite as an inhibitor for emulsification, as it may be used to prevent emulsification in oil-field operations"--
Author: Lilianna Z. Pillon
Publisher: CRC Press
ISBN: 9781420051001
Category : Science
Languages : en
Pages : 0
Get Book Here
Book Description
With mounting pressure to extract petroleum from oil sands and other unconventional sources, oil refineries must adapt their processing methods to handle increasingly heavy crude oils. Unlike traditional crude oils, the properties of heavier crude oils include higher viscosity, metal, salt, and acid content. This causes their interfacial properties to deteriorate, leading to problems such as sedimentation, foaming, emulsification, rust, and corrosion—all of which make the manufacture, transportation, and storage of petroleum products more difficult. Interfacial Properties of Petroleum Products examines conventional and non-conventional processing techniques for crude oils and documents their effects on the composition and properties of petroleum products at the oil/solid, oil/air, oil/water and oil/metal interfaces. Focusing on surface activity, the author examines the undesirable effects of processes such as solvent extraction, desalting, dewaxing, catalyst deactivation, and hydroprocessing as well as trace element and water contamination. With each process, the author presents methods for improving interfacial properties, including the use of surface-active additives, demulsifiers, antifoaming agents, and corrosion/rust inhibitors. A distinctive and up-to-date source of materials published together for the first time, Interfacial Properties of Petroleum Products will help engineers design more cost-effective and resource-efficient processing methods for heavier crude oils, based on the properties of the crude oil extracted.
Author: Neha Saxena
Publisher: Springer Nature
ISBN: 3030785483
Category : Technology & Engineering
Languages : en
Pages : 45
Get Book Here
Book Description
This book focuses on the use of natural surfactants in enhanced oil recovery, providing an overview of surfactants, their types, and different physical–chemical properties used to analyse the efficiency of surfactants. Natural surfactants discuss the history of the surfactants, their classification, and the use of surfactants in petroleum industry. Special attention has been paid to natural surfactants and their advantages over synthetic surfactants, including analysing their properties such as emulsification, interfacial tension, and wettability and how these can be used in EOR. This book offers an overview for researchers and graduate students in the fields of petroleum and chemical engineering, as well as oil and gas industry professionals.
Author: Laurier L. Schramm
Publisher: John Wiley & Sons
ISBN: 3527606882
Category : Science
Languages : en
Pages : 463
Get Book Here
Book Description
Until now colloid science books have either been theoretical, or focused on specific types of dispersion, or on specific applications. This then is the first book to provide an integrated introduction to the nature, formation and occurrence, stability, propagation, and uses of the most common types of colloidal dispersion in the process-related industries. The primary focus is on the applications of the principles, paying attention to practical processes and problems. This is done both as part of the treatment of the fundamentals, where appropriate, and also in the separate sections devoted to specific kinds of industries. Throughout, the treatment is integrated, with the principles of colloid and interface science common to each dispersion type presented for each major physical property class, followed by separate treatments of features unique to emulsions, foams, or suspensions. The first half of the book introduces the fundamental principles, introducing readers to suspension formation and stability, characterization, and flow properties, emphasizing practical aspects throughout. The following chapters discuss a wide range of industrial applications and examples, serving to emphasize the different methodologies that have been successfully applied. Overall, the book shows how to approach making emulsions, foams, and suspensions with different useful properties, how to propagate them, and how to prevent their formation or destabilize them if necessary. The author assumes no prior knowledge of colloid chemistry and, with its glossary of key terms, complete cross-referencing and indexing, this is a must-have for graduate and professional scientists and engineers who may encounter or use emulsions, foams, or suspensions, or combinations thereof, whether in process design, industrial production, or in related R&D fields.
Author: Mariyamni Awang
Publisher: Springer
ISBN: 9812873686
Category : Technology & Engineering
Languages : en
Pages : 389
Get Book Here
Book Description
This book presents the proceedings of the 3rd International Conference on Integrated Petroleum Engineering and Geosciences 2014 (ICIPEG2014). Topics covered on the petroleum engineering side include reservoir modeling and simulation, enhanced oil recovery, unconventional oil and gas reservoirs, production and operation. Similarly geoscience presentations cover diverse areas in geology, geophysics palaeontology and geochemistry. The selected papers focus on current interests in petroleum engineering and geoscience. This book will be a bridge between engineers, geoscientists, academicians and industry.
Author: Orlando J. Rojas
Publisher: Springer
ISBN: 3319260154
Category : Technology & Engineering
Languages : en
Pages : 341
Get Book Here
Book Description
Vincent Bulone et al.: Cellulose sources and new understanding of synthesis in plants Thomas Heinze et al.:Cellulose structure and properties Thomas Rosenau, Antje Potthast, Ute Henniges et al.: Recent developments in cellulose aging (degradation / yellowing / chromophore formation) Sunkyu Park et al.:Cellulose crystallinity Lina Zhang et al.:Gelation and dissolution behavior of cellulose Yoshiyuki Nishio et al.:Cellulose and derivatives in liquid crystals Alessandro Gandini, Naceur Belgacem et al.:The surface and in-depth modification of cellulose fibers Emily D. Cranston et al.:Interfacial properties of cellulose Herbert Sixta, Michael Hummel et al.Cellulose Fibers Regenerated from Cellulose Solutions in Ionic Liquids Qi Zhou et al.:Cellulose-based biocomposites Orlando Rojas et al.:Films of cellulose nanocrystals and nanofibrils Pedro Fardim et al.:Functional cellulose particles Wadood Hamad et al.:Cellulose Composites
Author: Thomas M. Pankratz
Publisher: CRC Press
ISBN: 1420032534
Category : Science
Languages : en
Pages : 340
Get Book Here
Book Description
Like most technical disciplines, environmental science and engineering is becoming increasingly specialized. As industry professionals focus on specific environmental subjects they become less familiar with environmental problems and solutions outside their area of expertise. This situation is compounded by the fact that many environmental science
Author: Robert A. Goodnow, Jr.
Publisher: John Wiley & Sons
ISBN: 1118487680
Category : Science
Languages : en
Pages : 495
Get Book Here
Book Description
This book comprehensively describes the development and practice of DNA-encoded library synthesis technology. Together, the chapters detail an approach to drug discovery that offers an attractive addition to the portfolio of existing hit generation technologies such as high-throughput screening, structure-based drug discovery and fragment-based screening. The book: Provides a valuable guide for understanding and applying DNA-encoded combinatorial chemistry Helps chemists generate and screen novel chemical libraries of large size and quality Bridges interdisciplinary areas of DNA-encoded combinatorial chemistry – synthetic and analytical chemistry, molecular biology, informatics, and biochemistry Shows medicinal and pharmaceutical chemists how to efficiently broaden available “chemical space” for drug discovery Provides expert and up-to-date summary of reported literature for DNA-encoded and DNA-directed chemistry technology and methods
Author: Bernard P Binks
Publisher: Royal Society of Chemistry
ISBN: 1847551475
Category : Technology & Engineering
Languages : en
Pages : 443
Get Book Here
Book Description
Emulsions occur either as end products or during the processing of products in a huge range of areas including the food, agrochemical, pharmaceutical, paint and oil industries. Despite over one hundred years of research in the subject, however, a quantitative understanding of emulsions has been lacking. Modern Aspects of Emulsion Science presents a comprehensive description of both the scientific principles in the field and the very latest advances in research in this important area of surface and colloid science. Topics covered include emulsion formation, type, stability (creaming, flocculation, ripening, coalescence), monodisperse and gel emulsions, and applications. Emphasis has been placed on relating the chemistry of the surfactant or protein adsorbed at the oil-water interface to the principles of the physics involved in the bulk emulsion property. The book has been written by a collection of the world's leading experts in the field, and covers both experimental and theoretical approaches. Modern Aspects of Emulsion Science fills a real gap in the market, being the only book of its kind in print. As such it will prove essential reading for graduates and researchers in this subject, in both academia and industry.
Author: M.R. Porter
Publisher: Springer
ISBN: 1475712936
Category : Science
Languages : en
Pages : 237
Get Book Here
Book Description
The worldwide consumption of surfactants now exceeds several million tonnes per annum. Six ofthe major types represent approximately 80% ofthe volume consumed, whereas the remaining 20% is made up of approximately 40 different chemical types. Commercially produced surface active agents are not pure chemicals, and within each chemical type there can be tremendous variation. Technical staff who are not familiar with surfactants are frequently bewildered by the enormous variety of different products on the market and the vast body of literature which exists on the composition and properties of surfactants. The selection of the best surfactant for any given use therefore becomes a major problem. This volume arose from the clear need to have available a simple reference book summarising the different types of surfactants on the market and their properties. The concept and structure of the book evolved from early attempts to define chemical structure/property relationships of all the different types of surfactants commercially available, into a simple handbook providing essential background information for the surfactant user. It is realised that most users will be developing their own data bank of structure/end use property relationships and they will therefore be the experts on end use.
