Academic literature on the topic 'Supercriticall fluids'

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Journal articles on the topic "Supercriticall fluids"

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Pavlova, Praskovya L., Andrey V. Minakov, Dmitriy V. Platonov, Vladimir A. Zhigarev, and Dmitriy V. Guzei. "Supercritical Fluid Application in the Oil and Gas Industry: A Comprehensive Review." Sustainability 14, no. 2 (2022): 698. http://dx.doi.org/10.3390/su14020698.

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The unique properties of supercritical fluid technology have found wide application in various industry sectors. Supercritical fluids allow for the obtainment of new types of products with special characteristics, or development and design of technological processes that are cost-effective and friendly to the environment. One of the promising areas where supercritical fluids, especially carbon dioxide, can be used is the oil industry. In this regard, the present review article summarizes the results of theoretical and experimental studies of the use of supercritical fluids in the oil and gas i
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Heřmanská, Matylda, Barbara I. Kleine, and Andri Stefánsson. "Supercritical Fluid Geochemistry in Geothermal Systems." Geofluids 2019 (August 5, 2019): 1–14. http://dx.doi.org/10.1155/2019/6023534.

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Supercritical fluids exist in the roots of many active high-temperature geothermal systems. Utilization of such supercritical resources may multiply energy production from geothermal systems; yet, their occurrence, formation mechanism, and chemical properties are poorly constrained. Flow-through experiments at 260°C and 400-420°C were performed to study the chemical and mineralogical changes associated with supercritical fluid formation near shallow magmatic intrusions by conductive heating and boiling of conventional subcritical geothermal fluids. Supercritical fluids formed by isobaric heati
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Sedunov, Boris I. "Structural Transition in Supercritical Fluids." Journal of Thermodynamics 2011 (October 10, 2011): 1–5. http://dx.doi.org/10.1155/2011/194353.

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The extension of the saturation curve on the PT diagram in the supercritical region for a number of monocomponent supercritical fluids by peak values for different thermophysical properties, such as heat capacities and and compressibility has been studied. These peaks signal about some sort of fluid structural transition in the supercritical region. Different methods give similar but progressively diverging curves for this transition. The zone of temperatures and pressures near these curves can be named as the zone of the fluid structural transition. The outstanding properties of supercritical
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Orlovic, Aleksandar, and Dejan Skala. "Materials processing using supercritical fluids." Chemical Industry 59, no. 9-10 (2005): 213–23. http://dx.doi.org/10.2298/hemind0510213o.

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One of the most interesting areas of supercritical fluids applications is the processing of novel materials. These new materials are designed to meet specific requirements and to make possible new applications in Pharmaceuticals design, heterogeneous catalysis, micro- and nano-particles with unique structures, special insulating materials, super capacitors and other special technical materials. Two distinct possibilities to apply supercritical fluids in processing of materials: synthesis of materials in supercritical fluid environment and/or further processing of already obtained materials wit
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5

Khetsuriani, N., K. Karchkhadze, V. Tsitsishvili, and K. Goderdzishvili. "PRODUCTION OF BIODIESEL USING SUPERCRITICAL FLUIDS TECHNOLOGY." Chemical Problems 15, no. 1 (2017): 21–25. http://dx.doi.org/10.32737/2221-8688-2017-1-21-25.

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Madana Gopal, Jaya Vignesh, Robert Morgan, Guillaume De Sercey, and Konstantina Vogiatzaki. "Overview of Common Thermophysical Property Modelling Approaches for Cryogenic Fluid Simulations at Supercritical Conditions." Energies 16, no. 2 (2023): 885. http://dx.doi.org/10.3390/en16020885.

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Computational Fluid Dynamics (CFD) frameworks of supercritical cryogenic fluids need to employ Real Fluid models such as cubic Equations of State (EoS) to account for thermal and inertial driven mechanisms of fluid evolution and disintegration. Accurate estimation of the non-linear variation in density, thermodynamic and transport properties is required to computationally replicate the relevant thermo and fluid dynamics involved. This article reviews the availability, performance and the implementation of common Real Fluid EoS and data-based models in CFD studies of supercritical cryogenic flu
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Shen, Yunqi, Zhiwen Hu, Xin Chang, and Yintong Guo. "Experimental Study on the Hydraulic Fracture Propagation in Inter-Salt Shale Oil Reservoirs." Energies 15, no. 16 (2022): 5909. http://dx.doi.org/10.3390/en15165909.

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In response to the difficulty of fracture modification in inter-salt shale reservoirs and the unknown pattern of hydraulic fracture expansion, corresponding physical model experiments were conducted to systematically study the effects of fracturing fluid viscosity, ground stress and pumping displacement on hydraulic fracture expansion, and the latest supercritical CO2 fracturing fluid was introduced. The test results show the following. (1) The hydraulic fractures turn and expand when they encounter the weak surface of the laminae. The fracture pressure gradually increases with the increase in
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Demirbaş, A. "Supercritical fluid extraction and chemicals from biomass with supercritical fluids." Energy Conversion and Management 42, no. 3 (2001): 279–94. http://dx.doi.org/10.1016/s0196-8904(00)00059-5.

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Pucciarelli, Andrea, Sara Kassem, and Walter Ambrosini. "Overview of a Theory for Planning Similar Experiments with Different Fluids at Supercritical Pressure." Energies 14, no. 12 (2021): 3695. http://dx.doi.org/10.3390/en14123695.

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The recent advancements achieved in the development of a fluid-to-fluid similarity theory for heat transfer with fluids at supercritical pressures are summarised. The prime mover for the development of the theory was the interest in the development of Supercritical Water nuclear Reactors (SCWRs) in the frame of research being developed worldwide; however, the theory is general and can be applied to any system involving fluids at a supercritical pressure. The steps involved in the development of the rationale at the basis of the theory are discussed and presented in a synthetic form, highlighti
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10

Ruiz, Helga K., Dolores R. Serrano, Lourdes Calvo, and Albertina Cabañas. "Current Treatments for COVID-19: Application of Supercritical Fluids in the Manufacturing of Oral and Pulmonary Formulations." Pharmaceutics 14, no. 11 (2022): 2380. http://dx.doi.org/10.3390/pharmaceutics14112380.

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Even though more than two years have passed since the emergence of COVID-19, the research for novel or repositioned medicines from a natural source or chemically synthesized is still an unmet clinical need. In this review, the application of supercritical fluids to the development of novel or repurposed medicines for COVID-19 and their secondary bacterial complications will be discussed. We envision three main applications of the supercritical fluids in this field: (i) drug micronization, (ii) supercritical fluid extraction of bioactives and (iii) sterilization. The supercritical fluids micron
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