dynamic model of a supercritical fluid extraction plant

Dynamic model of a supercritical fluid extraction plant ...

Feb 14, 2007  A dynamic model of a supercritical fluid extraction (SFE) process was developed and applied to the fractionation of the binary mixture squalene/methyl oleate by supercritical

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Dynamic model of a supercritical fluid extraction plant ...

A dynamic model of a supercritical fluid extraction (SFE) process was developed and applied to the fractionation of the binary mixture squalene/methyl oleate by supercritical carbon dioxide.

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Dynamic model of a supercritical fluid extraction plant ...

A dynamic model of a supercritical fluid extraction (SFE) process was developed and applied to the fractionation of the binary mixture squalene/methyl oleate by supercritical carbon dioxide. The model combines a mathematical model for each main piece of equipment of the SFE process, namely, the countercurrent packed extraction column, the ...

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Dynamic simulation of a supercritical fluid extraction ...

May 01, 2002  Non-isothermal dynamic model of a supercritical fluid extraction packed column. The Journal of Supercritical Fluids 2007, 41 (1) , 20-30. DOI: 10.1016/j.supflu.2006.09.006. João Fernandes, Rui Ruivo, Pedro Simões. Dynamic model of a supercritical fluid extraction plant.

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[Study on the dynamic model with supercritical CO2 fluid ...

METHODS: Based on the theory of counter-flow mass transfer and the molecular mass transfer between the material and the supercritical CO2 fluid under differential mass-conservation equation, a dynamics model was established and computed to compare forecasting result with the experiment process.

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Dynamic simulation of a supercritical fluid extraction ...

May 01, 2002  Non-isothermal dynamic model of a supercritical fluid extraction packed column. The Journal of Supercritical Fluids 2007, 41 (1) , 20-30. DOI: 10.1016/j.supflu.2006.09.006. João Fernandes, Rui Ruivo, Pedro Simões. Dynamic model of a supercritical fluid extraction plant.

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A model for dynamic extraction using a supercritical fluid ...

Sep 01, 1990  The Jnurnulof Super-criticalFluids 1990, 3, 143-149143 A Model for Dynamic Extraction Using a Supercritical Fluid KeithD. Bartle,aAnthonyA. Clifford,a*Steven B. Hawthorne,bJohn J. Langenfeld,b David J. Miller,band RobertRobinsona aSchool of Chemistry, University of Leeds, Leeds LS2 9JT, UK bEnergy and Environmental Research Center, University of North Dakota, Grand Forks,

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MODELLING OF SUPERCRITICAL FLUID EXTRACTION USING DYNAMIC ...

Jan 01, 2005  The proposed hybrid dynamic model for supercritical fluid extraction can successful used in the dynamic extraction process. 4. CONCLUSION In this paper, a hybrid dynamic model combining the transformation based genetic algorithm and Peng-Robinson equation of state are proposed for dynamic modelling of the supercritical fluid extraction.

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[Study on the dynamic model with supercritical CO2 fluid ...

METHODS: Based on the theory of counter-flow mass transfer and the molecular mass transfer between the material and the supercritical CO2 fluid under differential mass-conservation equation, a dynamics model was established and computed to compare forecasting result with the experiment process.

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Dynamic model of a supercritical carbon dioxide heat ...

The most complete dynamic model to date of a supercritical fluid extraction (SFE) plant is presented and experimentally validated. The SFE flowsheet is modularly organized into a set of detailed ...

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[Study on the dynamic model with supercritical CO2 fluid ...

Aug 01, 2011  [Study on the dynamic model of supercritical fluid extraction of effective ingredients from natural plant]. Zhao YQ, Liu WW, Wu ZM, Xu GX, Xu RB. Zhong Yao Cai, 29(1):56-59, 01 Jan 2006 Cited by: 1 article PMID: 16722321

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(PDF) Application of a Dynamic Extraction Model to the ...

Application of a Dynamic Extraction Model to the Supercritical Fluid Extraction of the Limonoid Cedrelone from Cedrela toona Journal of Chromatographic Science, 1996 William Modey

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Supercritical fluid extraction in plant essential and ...

Sep 07, 2007  Supercritical fluid extraction (SFE) is a rapid, selective and convenient method for sample preparation prior to the analysis of compounds in the volatile product of plant matrices. Also, SFE is a simple, inexpensive, fast, effective and virtually solvent-free sample pretreatment technique. This review provides a detailed and updated discussion ...

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A computer program for the dynamic simulation of a semi ...

Oct 01, 1989  THE MATHEMATICAL MODEL In order to describe a supercritical extraction plant it is not necessary to consider all the various parts which constitute the plant; for studying the dynamics of the process, it is sufficient to analyze the behavior of the extractor and the separator and to investigate the temperature and the pressure control actions.

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Modelling and Simulation of a Complete Supercritical Fluid ...

The most complete dynamic model to date of a supercritical fluid extraction (SFE) plant is presented and experimentally validated. The SFE flowsheet is modularly organized into a set of detailed sub-models of the main unit operations, including the extraction packed column, the supercritical solvent heat exchanger, the product recovery and solvent regeneration column, and the solvent make-up.

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Systematic Error for Extraction of Controlled Substances ...

The aim of this work was to investigate the applicability of a mathematical model developed for the description of supercritical fluid extraction (SFE) of cannabinoids from marijuana and hashish for liquid extraction of other substances. The mentioned model is applicable for dynamic SFE whose implem

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Importance of Supercritical Fluid Extraction Techniques in ...

A very successful application of supercritical fluid extraction technique is the distillation of natural spices. Supercritical fluid extraction has the ability of high dissolution, high extraction yield and is efficient. CO2 is used as the extraction agent, the products are non toxic, leaves no residues, their color and fragrance are excellent.

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Supercritical Fluid Technology In Materials Science And ...

Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds Supercritical Fluid Chromatography Although supercritial fluid (SCF) technology is now widely used in extraction and purification processes (in the petrochemical, food and pharmaceuticals industries), this book is the first to address the new application of cleaning.

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Molecules Free Full-Text Recent Advances in Recovery ...

The effect of technical parameters on lycopene extraction in supercritical fluid extraction from freeze-dried tomato pomace (peels and seeds). Adv. Mater. Res. 2011, 236, 2868–2871. [Google Scholar] Baysal, T.; Ersus, S.; Starmans, J.D.A. Supercritical CO 2 extraction of b-carotene and lycopene from tomato paste waste. J. Agric.

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Dynamic model of a supercritical carbon dioxide heat ...

The most complete dynamic model to date of a supercritical fluid extraction (SFE) plant is presented and experimentally validated. The SFE flowsheet is modularly organized into a set of detailed ...

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Modelling and Simulation of a Complete Supercritical Fluid ...

The most complete dynamic model to date of a supercritical fluid extraction (SFE) plant is presented and experimentally validated. The SFE flowsheet is modularly organized into a set of detailed ...

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(PDF) Application of a Dynamic Extraction Model to the ...

Application of a Dynamic Extraction Model to the Supercritical Fluid Extraction of the Limonoid Cedrelone from Cedrela toona Journal of Chromatographic Science, 1996 William Modey

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Modelling and Simulation of a Complete Supercritical Fluid ...

The most complete dynamic model to date of a supercritical fluid extraction (SFE) plant is presented and experimentally validated. The SFE flowsheet is modularly organized into a set of detailed sub-models of the main unit operations, including the extraction packed column, the supercritical solvent heat exchanger, the product recovery and solvent regeneration column, and the solvent make-up.

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Supercritical Fluid Chromatography development of a ...

This model was achieved with Supercritical Fluid Chromatography (SFC) and then applied to Supercritical Fluid Extraction (SFE) and Pressurised Liquid Extraction (PLE) assays. SFC models predicted low solubility of chlorophylls for low (5%) and high (100%) percentage of

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Sample preparation by supercritical fluid extraction for ...

May 13, 1994  A model based on the diffusion-layer theory for determination of extraction time. Veress T(1). Author information: (1)Institute of Forensic Sciences, Budapest, Hungary. A mathematical model based on the diffusion-layer theory was elaborated in order to calculate the extraction time in dynamic supercritical fluid extraction required to reach a ...

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Optimization of supercritical carbon dioxide extraction of ...

Extraction of the essential oil from a medicinal plant called Dracocephalum kotschyi Boiss was performed by green technology of supercritical carbon dioxide (SC-CO2) extraction. A Taguchi orthogonal array design with an OA16 (4(5)) matrix was used to evaluate the effects of five extraction

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Development of a new extraction technique and HPLC method ...

Different extraction methods, including dynamic maceration (DM), ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE) and supercritical-fluid extraction (SFE) were applied and compared in order to obtain a high yield of the target analytes from hemp.

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(PDF) Mathematical modeling of supercritical extraction of ...

Mathematical modeling of supercritical extraction of sage oil. AIChE Journal, 1996. Ernesto Reverchon. Download with Google Download with Facebook. or. Create a free account to download. Download Full PDF Package. This paper. A short summary of this

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Supercritical fluid extraction: Recent advances and ...

Some extraction parameters have been studied particularly in detail, such as the effect of pressure on plant seeds extraction [32], the influence of milled seeds particle size distribution in the extraction process [33], or even deeper calculations of solubility changes in supercritical CO2 according to the temperature and pressure applied [34].

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Supercritical Fluid Extraction of Plant Flavors and Fragrances

Supercritical fluid extraction (SFE) of plant material with solvents like CO2, propane, butane, or ethylene is a topic of growing interest. SFE allows the processing of plant material at low temperatures, hence limiting thermal degradation, and avoids the use of toxic solvents. Although today SFE is mainly used for decaffeination of coffee and tea as well as production of hop extracts on a ...

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Peanut Oil Extraction by SFE1 - Home - Supercritical Fluid ...

Supercritical fluid extraction was successfully used to extract peanut oil from peanuts at temperatures between 40 and 80 °C and pressures of 5000-7000 psi. Static/dynamic cycling was used with a 10 minute static soak time, followed by a 10 minute dynamic interval. The overall extraction time was held constant at 3 hours. Peanut oil yield was ...

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Supercritical fluid extraction - Wikipedia

Supercritical fluid extraction (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent.Extraction is usually from a solid matrix, but can also be from liquids.SFE can be used as a sample preparation step for analytical purposes, or on a larger scale to either strip unwanted material from a product (e.g ...

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Fractionation of Edible Oil Model Mixtures by ...

Dynamic model of a supercritical fluid extraction plant. AIChE Journal 2007, 53 (4) , 825-837. DOI: 10.1002/aic.11123. Luis Vázquez, Carlos F. Torres, Tiziana Fornari, F. Javier Señoráns, Guillermo Reglero. Recovery of squalene from vegetable oil sources using countercurrent supercritical carbon dioxide extraction.

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