• Supercritical fluids (SCFs) offer unique advantages for interfacial deposition processes. (confex.com)
  • Actual rock cores representing different areas of carbonate oil field saturated with actual fluids of filtrated brine and asphaltenic crude oil were used to evaluate the interaction between supercritical (SC)-CO 2 , carbonate rock, and its contained fluid. (uaeu.ac.ae)
  • Chemical constituents (cations, anions, trace elements, organic carbon, humic acid, and stable isotopes) in both fluids and mud were analyzed to investigate the geochemical processes and spatial variability among the mud volcanoes under consideration. (edu.au)
  • The thesis aims to fabricate hybrid (organic-inorganic) complex materials as drug carriers using supercritical fluids (SCFs) with adequate properties for their application in biomedicine. (uab.cat)
  • and second, exploiting the utility of the supercritical fluids in the synthesis and functionalization of materials. (uab.cat)
  • The SFT Phase Monitor II is a powerful analytical tool for determining the solubility parameters of compounds and mixtures in subcritical and supercritical fluids. (analytix.co.uk)
  • With these materials, the research team has used two different procedures to compare their physical properties and bioactive function, as explained in the study, titled "Biobased films of nanocellulose and mango leaf extract for active food packaging: Supercritical impregnation versus solvent casting," published in the journal Food Hydrocolloids. (phys.org)
  • For the treatment based on the supercritical impregnation technology, they used an extract previously obtained by the same technique. (phys.org)
  • By doing so, a better dissolution of the extract is achieved during the impregnation of the polymer, since the mango extract penetrates into the composition of the nanocellulose at the surface level, which favors the migration of the active compounds, thereby taking less time to exert its preservative action," explains researcher Cejudo. (phys.org)
  • An additional advantage of the supercritical technique is that the pathogen inhibition is higher due to the selection of the most bioactive compounds in mango extract for supercritical impregnation. (phys.org)
  • With these results, the research team has verified the effectiveness of the supercritical impregnation technique to obtain this new bioactive packaging. (phys.org)
  • Whereas with the conventional method the container is orange-colored due to a stronger interaction of the mango with the polymer, with the supercritical impregnation it acquires a greenish color, similar to that of the original mixture, because the deposition is more superficial, which also favors a faster performance of the compounds during packaging. (phys.org)
  • The impregnation process demonstrated the successful dissolution of menthol and penetration into the cotton gauze matrix. (ualberta.ca)
  • Development and Validation of Retention Models in Supercritical Fluid Chromatography for Impregnation Process Design. (tuhh.de)
  • This paper focuses on the synthesis and characterization of Pt/ceria WGS catalysts prepared using supercritical fluid deposition (SCFD), a technique by which organometallic precursors are adsorbed from a supercritical fluid solvent on to a support. (confex.com)
  • The substance which is to be dissolved is known as solute and the fluid (medium) in which the solute to be dissolve is known as solvent and the process of dissolving solute into solvent is called as solution. (scialert.net)
  • In contrast, the Rapid Expansion of Supercritical Solutions (RESS) can provide both mild process conditions and a solvent-free processing technology. (dissertation.com)
  • With developing new technologies such as non-aqueous bitumen extraction, the need to track solvent interactions with oil sands components throughout the extraction process and to identify. (ualberta.ca)
  • A systematic investigation of processing parameters such as pressure (100-400 bar), temperature (45-55 °C), CO2 flow rate (0.5 and 3 mL/min), time (15-180 min), and co-solvent type (ethanol, acetone, and isopropyl acetate) was undertaken to maximize extraction yield. (ualberta.ca)
  • If we set the pressure and temperature above the critical point, carbon dioxide becomes supercritical, divided into two different ranges: gas and liquid solvent. (rzsfe.com)
  • The solvent itself is highly volatile, allowing for its evaporation after the separation process. (baypat.de)
  • Additionally, supercritical "anti-solvent" applications are possible. (analytix.co.uk)
  • In this process, the FSC is used as the solvent. (top-supercritical.com)
  • This fluid, according to the temperature and the pressure, can reach significant densities that boosts the solvation phenomenon by decreasing the intermolecular lenghs and consequently the interactions that exist between the solvent molecules and the chemical specie inserted during the dissolution of a compound in a solvent. (top-supercritical.com)
  • In the RESS process, one or many substance(s) is (are) dissolved in the SCF, employed here as the solvent, at determined temperature and pressure conditions so that the solute/solvent mix be an homogeneous solution. (top-supercritical.com)
  • In these processes, the FSC is used as an anti-solvent. (top-supercritical.com)
  • In the continuous anti-solvent process, the solution and the anti-solvent bring together at the expansion nozzle and are injected cocurrent. (top-supercritical.com)
  • A washing or extraction with pur CO2 step is recommended at the process end to eliminate the last solvent traces that could be in the cristallized particules. (top-supercritical.com)
  • Carbon dioxide extraction equipment can be used to extract volatile elements_Nantong Wisdom Supercritical Science & Technology Development Co., Ltd. (rzsfe.com)
  • The reactive-transport kinetic model indicated significant dissolutions of carbonate and clay minerals, which can enhance the trapping mechanism through mineralization process. (edu.au)
  • GeoChemFoam is an open-source OpenFOAM-based numerical modelling toolbox that includes a range of custom packages to solve complex flow processes including multiphase transport with interface transfer, single-phase flow in multiscale porous media, and reactive transport with mineral dissolution. (researchgate.net)
  • The composition of the oil shale may lend added value to the extraction process through the recovery of by-products, including ammonia, sulfur, aromatic compounds, pitch, asphalt, and waxes. (wikipedia.org)
  • From a technological standpoint, particle design and crystal engineering are valuable tools to increase intrinsic solubility and low dissolution rates of lipophilic compounds. (dissertation.com)
  • With the development of three RESS applications for micronization, nanotechnology and crystal engineering, the dissolution rate of poorly soluble compounds could be improved distinctly in this thesis. (dissertation.com)
  • More polar substances can modulate compounds, for example, you can add water to extract more polar compounds during the refining process, most commonly from coffee or more nicotine from tobacco. (rzsfe.com)
  • For herbal medicine, this supercritical refining method plays an important role because it can extract aromatic plants, vegetable oils, antioxidants, compounds and other therapeutic compounds that cannot be extracted by steam distillation. (rzsfe.com)
  • Additionally, the effect of co-solvents on the solubility of compounds in supercritical carbon dioxide can be investigated with this instrument. (analytix.co.uk)
  • It allows the end user to view dissolution, precipitation, and crystallization of compounds over a wide range of pressures and temperatures. (analytix.co.uk)
  • This data is useful for determining processing conditions for selective extraction, reaction, and/or fractionation of compounds of interest. (analytix.co.uk)
  • Over the past decade, laboratory based X-ray computed micro-tomography (micro-CT) has given unique insights in the internal structure of complex reservoir rocks, improving the understanding of pore scale processes and providing crucial information for pore scale modelling. (researchgate.net)
  • Our results show that the proposed framework can achieve efficient and effective real-time optimization and data assimilation in the geothermal reservoir production process. (ethz.ch)
  • While the dissolution of CO2 bubbles in reservoir brine is a crucial mechanism towards safe CO2 storage, it is a process that occurs at the pore-scale and is not yet fully understood. (researchgate.net)
  • Mingkan Zhang § , Ye Zhang , Peter Lichtner (2017) Evaluating model complexity in simulating supercritical CO2 dissolution, leakage, footprint, and reservoir pressure for three-dimensional hierarchical aquifer, International Journal of Greenhouse Gas Control , Vol.64, p. 284-299, http://dx.doi.org/10.1016/j.ijggc.2017.07.022. (uwyo.edu)
  • Modeling and investigating effects of CO 2 injection into carbonate formations during WAG processes, investigating parameters related to chemical reactions between reservoir rock and injecting fluid and also better understanding of the process theory for future experiments are the most important goals of this paper. (ac.ir)
  • In large scale subsurface injection of carbondioxide (CO ) as obtainable in carbon sequestration programs and in environmentally friendly hydraulic fracturing processes (using supercritical CO ), long term rock-fluid interaction can affect reservoir and seal rocks properties which are essential in monitoring the progress of these operations. (lsu.edu)
  • Asphaltene content of the produced crude oil, water and mineralogical rock analyses, and scanning electron microscopic (SEM) photos of rock pores were performed to evaluate the effect of supercritical (SC)-CO 2 flood on the permeability and mineralogical variation characteristics of the limestone cores. (uaeu.ac.ae)
  • Results indicated that calcite dissolution and/or precipitation is the major reason for permeability improvement and/or impairment. (uaeu.ac.ae)
  • Our results suggest that the density increase of resident species causes significant enhancement in CO 2 dissolution, although no significant porosity and permeability alterations are observed. (nature.com)
  • In addition, precipitation and dissolution of minerals may lead to an alteration in porosity and permeability of the host formation. (nature.com)
  • Ennis-King and Paterson 20 investigated analytical and numerical methods and observed that the overall dissolution rate depends on the balance between the effects of permeability alterations and the consumption of dissolved CO 2 . (nature.com)
  • Dan Zhou § , Ye Zhang , Guillaume Gianni, Peter Lichtner, Irina Engelhardt (2018) Numerical modeling of stream-aquifer interaction: quantifying the impact of transient sreambed permeability and aquifer heterogeneity, Hydrological Processes , in press, https://doi.org/10.1002/hyp.13169. (uwyo.edu)
  • It is because of precipitation and dissolution that cause permeability alternations. (ac.ir)
  • Asphaltene precipitation and rock dissolution can significantly hinder the success of carbon dioxide flooding of asphaltenic crude oil in carbonate heterogeneous formations. (uaeu.ac.ae)
  • Almehaideb, Reyadh A. / Investigation of supercritical carbon dioxide, aspheltenic crude oil, and formation brine interactions in carbonate formations . (uaeu.ac.ae)
  • In a second phase, the analysis were extended on a long time basis, up to 10.000 years post-injection, to simulate the effective rate of dissolution in liquid brine, and the subsequent mineral trapping in the Dogger aquifer in Paris basin. (hal.science)
  • Interfacial properties have a regulatory role in processes which involve the coexistence of different phases. (ualberta.ca)
  • Hypothesis: Understanding interfacial mass transfer during dissolution of gas in a liquid is vital for optimising large-scale carbon capture and storage operations. (researchgate.net)
  • This time restriction is often a bottleneck for imaging dynamic in-situ processes, thus limiting the applicability to relatively slow pore scale processes occurring in the order of hours to days, or to end points in drainage-imbibition cycles. (researchgate.net)
  • In this work we show two different applications: CO2 dissolution in the pore-scale and single-phase species transport in fractured porous media. (researchgate.net)
  • The traditional model of solid dissolution in porous media consists of three dissolution regimes (uniform, compact, wormhole)-or patterns-that are established depending on the relative dominance of reaction rate, flow, and diffusion. (researchgate.net)
  • We present the ability to generate microscale and multiscale-porous media using affordable 3D printing technology to investigate fluid flow physics relevant to subsurface processes like CO2 storage. (researchgate.net)
  • This project was motivated by exploring a process of high viscosity bitumen displaced by. (ualberta.ca)
  • This is because temperature increase accelerates the movement of frankincense oil molecules, decreases viscosity, and increases fluidity, which is conducive to the dissolution and diffusion of frankincense oil. (hagf.com)
  • However, traditional pharmaceutical processing techniques make ample use of organic solvents and rough process conditions. (dissertation.com)
  • Supercritical water, supercritical carbon dioxide and other selected organic solvents in their supercritical state were studied. (ualberta.ca)
  • Details on the processes and on the characterization, in terms of organic load, structural and textural properties of the resulting materials, are presented. (uab.cat)
  • The changes in phase behavior as a function of temperature, pressure, and sample concentration can be investigated rapidly, saving time in the scale-up of supercritical fluid processes. (analytix.co.uk)
  • These traits can assist SOL in ameliorating the dissolution behavior and bioavailability of drugs loaded in self-nanoemulsifying drug delivery systems (SNEDDSs). (pharmaexcipients.com)
  • BioREP is an experimental platform for studying deep environments and characterising the natural biogeochemical processes and/or industrial processes that take place there. (brgm.fr)
  • Considerable amounts of arsenic in mud irrespective of fluid composition suggested possible release through biogeochemical processes in the subsurface environment. (edu.au)
  • The main factors affecting the yield of Boswellia volatile oil in supercritical extraction are the pressure of the extraction tank, the temperature of the extraction tank and the extraction time. (hagf.com)
  • Chapter 3 reports on the fabrication of hybrid products for biomedical applications by impregnating silica-based materials with a therapeutic agent trough dissolution in supercritical carbon dioxide. (uab.cat)
  • In addition, the averaged objective function over the ensemble of geologic parameter estimates is adopted to consider geologic uncertainty in the optimization process. (ethz.ch)
  • How to get the optimization CO2 extraction process? (hagf.com)
  • More sophisticated applications include the determination of processing conditions for impregnating materials into swollen polymers and surface deposition experiments. (analytix.co.uk)
  • Polymer Twin-Screw Extrusion System (with Supercritical CO 2 Capability) - SCF Processing Ltd. (pmbrc.org)
  • Several SD strategies, such as hot-melt extrusion , nanoextrusion, supercritical fluid processing, electrospinning , spray-drying, and freeze-drying are superior to other techniques in producing more effective SOL-based formulations. (pharmaexcipients.com)
  • The other alternative procedure does not require the use of chemical solvents, but uses supercritical CO 2 to functionalize the polymer, which provides the bioplastic with more effective physico-chemical and bioactive properties than those obtained by conventional treatment. (phys.org)
  • Present study explores two methods of tailings treatment - ATA process and polymer. (ualberta.ca)
  • however, knowledge about the interaction partners involved in these processes is still incomplete. (bvsalud.org)
  • Simulation results suggested that influx-induced mineral dissolution/precipitation reactions within clay-based sedimentary rocks can continuously close micro-fracture networks, though injection pressure and effective-stress transformation first rapidly expand the fractures. (lsu.edu)
  • Shale oil extraction is usually performed above ground (ex situ processing) by mining the oil shale and then treating it in processing facilities. (wikipedia.org)
  • Other modern technologies perform the processing underground (on-site or in situ processing) by applying heat and extracting the oil via oil wells. (wikipedia.org)
  • BioMOre Project : Extraction of copper from very deep environments using an in situ bioleaching process. (brgm.fr)
  • The multi-stage process originates with a gas phase mixture of MoF 6 and UF 6 which is fed into a liquid or supercritical fluid phase to dissolve both metal fluorides. (baypat.de)
  • But using the same process on 4-240mg pills would only require 4L to achieve the same effect assuming they also use 1L for the USP test and dissolve for 24 hours. (thevespiary.org)
  • The structure of a three-level simulation model with network-centric control, the structures of individual elements of the simulation model and the process of simulation modeling are described. (preprints.org)
  • The emulsions, either oil-in-water (O/W) or water-in-oil (W/O) emulsions, are inevitably formed during the industrial production processes and the daily household activities. (ualberta.ca)
  • Holistic understanding of multiphase reactive flow mechanisms such as CO 2 dissolution, multiphase displacement, and snap-off events is vital for optimisation of large-scale industrial operations like CO 2 sequestration, enhanced oil recovery, and geothermal energy. (researchgate.net)
  • Water alternating gas (WAG) technique is used in the petroleum industry to inject carbon dioxide (CO 2 ) into underground formations either for sequestration or enhanced oil recovery (EOR) processes. (ac.ir)
  • The RESS process employs the solving power of a fluid put at its nearby or in higher critical datas conditions. (top-supercritical.com)
  • Introduction: Supercritical aerogel preparation equipment has emerged as a groundbreaking technology in the field of industrial equipment and components, particularly in the domain of separation and extraction devices. (rzsfe.com)
  • Introduction: Supercritical heavy metal extraction equipment is at the forefront of the industrial equipment and components sector, specifically within the field of separation equipment. (rzsfe.com)
  • The present innovation describes a dry-chemical process allowing for the rapid separation of molybdenum from uranium by converting them to their corresponding metal hexafluorides. (baypat.de)
  • Alternatively, the separation process can be achieved via a gas phase mixture containing MoF 6 , UF 6 and a fluorine atom scavenger mixed in gaseous form. (baypat.de)
  • Aqueous solubility of any therapeutically active substance is a key property as it governs dissolution, absorption and thus the in vivo efficacy. (scialert.net)
  • For the BCS class II drugs, the oral absorption is limited by the solubility or dissolution in gastrointestinal (GI) tract. (scialert.net)
  • thus, their absorption is a dissolution-controlled process [3,4] (see Table 4). (pharmaexcipients.com)
  • This project entails laboratory experiments in which researchers will control and study the process of miscible density-driven convection. (vt.edu)
  • The BioREP (BioReactors for the Deep Environment) platform enables the reproduction of deep geological environments in order to study them and/or to characterise the effect of various natural and/or industrial processes taking place there. (brgm.fr)
  • According to Chen, the process effectively improves the long-term security of geological carbon dioxide storage. (vt.edu)
  • Since the emergence of Soluplus® (SOL) as a commercial graft copolymer, multiple publications have been issued on its promising potential as a solubilizing excipient that could promote the dissolution rate and bioavailability of several poorly water-soluble drugs. (pharmaexcipients.com)
  • The process therefore consists of dissolving the mango leaf extract and the nanocellulose and subsequently polymerising and drying the solvents at a temperature of 45ºC. (phys.org)
  • In the first study, the research aimed to explore the potential of supercritical carbon dioxide (SC-CO2) to extract essential oil from peppermint leaves as well as evaluate the scale-up of the extraction process. (ualberta.ca)
  • The objective of the study was to extract canola oil from seed (Brassica napus) by means of supercritical carbon dioxide (sc-CO2). (nwu.ac.za)
  • The temperature and pressure dependencies of the extraction were also studied in order to calculate activation parameters (Ea ~ 0 kJ/mol, AV' = -130 mL/mol) and hence assisted in confirming the mechanistic steps (chemical dissolution, diffusion controlled transport) of the extraction process. (nwu.ac.za)
  • Production of biogas by a biomethanation process: conversion of CO 2 and H 2 into CH 4 in an underground environment and in the presence of micro-organisms for large-scale energy storage (Power-to-Gas). (brgm.fr)
  • Although such macro-scale properties are determined by the intrinsic nature of the interface-sharing phases, it is possible to alter them in favor of the process objectives. (ualberta.ca)
  • Extractions were performed with a laboratory scale supercritical fluid extractor (LECO TFE 2000) of the latest design and performance. (nwu.ac.za)
  • To be practical, safe, and feasible on a large scale, fundamental understanding of the interplay between basic trapping processes is required. (hal.science)
  • Chen's approach is novel in that it seeks to design well-controlled laboratory testing methods for testing the process and numerous models used to understand it. (vt.edu)
  • Experiments can be performed in liquid or supercritical carbon dioxide and in other liquefied gases. (analytix.co.uk)
  • Three batches of verification experiments were carried out according to the optimal process conditions. (hagf.com)
  • Advantages and Applications of Supercritical Aerogel Preparation Equipment 4. (rzsfe.com)
  • From the above data, it can be concluded that the optimal process conditions are: the pressure of the extraction vessel is 30 MPa, the temperature of the extraction vessel is 55 ℃, and the extraction time is 1.5 h. (hagf.com)
  • Various outstanding reviews have been issued about the technologies in the dissolution enhancement of drugs using certain DDSs, such as micelles, solid dispersions (SD), nanosuspensions, and nanoemulsions. (pharmaexcipients.com)
  • The efficiencies of extraction processes are often evaluated by comparing their yields to the results of a Fischer Assay performed on a sample of the shale. (wikipedia.org)
  • In this article, we delve into the world of supercritical aerogels and explore how this innovative equipment is revolutionizing industrial extraction processes. (rzsfe.com)
  • It also has the potential to enhance subsequent carbon dioxide dissolution from the supercritical phase into the aqueous phase. (vt.edu)
  • The conditions at which a maximum yield of oil could be obtained (80°C, 600 atm, 70 min) were determined by performing runs according to a statistical design and processing the data by computer assisted surface response analysis. (nwu.ac.za)
  • Once injected, the carbon dioxide is in a supercritical state - somewhere between a gas and a liquid. (vt.edu)
  • This process has multiple applications only when the produce has a solubility higher than 10-3kg/kg in the SC CO2 which limits the process to unpolar and small polar. (top-supercritical.com)
  • This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution. (wikipedia.org)
  • The process is conducted by pyrolysis, hydrogenation, or thermal dissolution. (wikipedia.org)
  • The solubility of the oil in sc-CO2 could be measured at a given set of conditions (0.036 g per gram of sc-CO2 at 300 atm and 50°C) by utilising the static extraction mode of the supercritical extractor, whereas the oil content of the seed could by determined (0.14 - 0.22 g oil per gram of seed) by exhaustive extraction utilising the dynamic mode of the supercritical extractor. (nwu.ac.za)
  • The phase monitor can be utilized to determine the processing conditions in which each compound in a homologous mixture solubilizes and/or precipitates. (analytix.co.uk)
  • For example, the Phase Monitor can be utilized to determine the solubility of reactants and products so that the conditions for running supercritical reactions can be determined. (analytix.co.uk)
  • The experiment was carried out according to the orthogonal design, and the extraction rate of frankincense oil was used as the evaluation index, the influence of the level of various factors on the extraction effect was investigated, and the optimal process conditions were obtained. (hagf.com)
  • Key Components of Innovative Supercritical Aerogel Preparation Equipment 5. (rzsfe.com)
  • Understanding Supercritical Aerogel Preparation Equipment 3. (rzsfe.com)
  • How Supercritical Aerogel Preparation Equipment Works 6. (rzsfe.com)