scholarly journals Solubility of Acetophenone in Supercritical Carbon Dioxide

2016 ◽  
Vol 10 (1) ◽  
pp. 18-28 ◽  
Author(s):  
Maria Y. Dwi ◽  
Jessica Julian ◽  
Jindrayani N. Putro ◽  
Adi T. Nugraha ◽  
Yi-Hsu Ju ◽  
...  
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Equation Of State ◽  
Supercritical Carbon Dioxide ◽  
Static Method ◽  
Solubility Data ◽  
Experimental Solubility Data ◽  
Experimental Solubility ◽  
Robinson Equation ◽  
Supercritical Carbon

The solubility data of acetophenone in supercritical carbon dioxide (scCO2) were measured using a static method at several temperatures (313.15, 323.15, 333.15, and 343.15K) and pressures ranging from10 MPa to 28 MPa. The density based models (Chrastil and Del valle– Aguilera models) and the Peng-Robinson equation of state (PR-EOS) with quadratic and Stryjek-Vera combining rules were employed to correlate the experimental data. Good correlations between the calculated and experimental solubility data were obtained. The sum of squared errors (SSE) are 0.38 % and 0.37 % for Chrastil and Del Valle – Aguilera models, respectively; and 9.07 % for Peng-Robinson equation of state with quadratic combining rule and 4.00 % for Peng-Robinson equation of state with Stryjek-Vera combining rule.

scholarly journals Experimental Data and Modelling of the Solubility of High-Carotenoid Paprika Extract in Supercritical Carbon Dioxide

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4174 ◽  
Author(s):  
Dorota Kostrzewa ◽  
Agnieszka Dobrzyńska-Inger ◽  
August Turczyn
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Static Method ◽  
Coefficient Of Determination ◽  
High Concentration ◽  
Relative Deviation ◽  
Measurement Results ◽  
Supercritical Carbon

The studies of solubility of the paprika extract with a high concentration of carotenoids in carbon dioxide under the pressure of 20–50 MPa and at temperatures of 313.15–333.15 K were carried out using the static method. The highest solubility of paprika extract was achieved at the temperature of 333.15 K and under the pressure of 50 MPa. The obtained experimental data were correlated with five density-based models, applied for prediction of solubility in the supercritical carbon dioxide (the Chrastil, del Valle and Aguilera, Adachi and Lu, Sparks et al. and Bian et al. models). The accuracy of particular models with reference to measurement results was specified with the average absolute relative deviation (AARD) and coefficient of determination (R2). Results showed that solubility calculated based on the selected models was compliant with experimental data.

scholarly journals High Pressure Vapour-Liquid Equilibrium of Volatiles in Supercritical Carbon Dioxide

2013 ◽  
Vol 34 (3) ◽  
pp. 387-392 ◽  
Author(s):  
Karina Gurgenova ◽  
Rafał Bogeł-Łukasik ◽  
Paweł Wawrzyniak
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
High Pressure ◽  
Equation Of State ◽  
Supercritical Carbon Dioxide ◽  
Process Parameters ◽  
Liquid Equilibrium ◽  
Isothermal Conditions ◽  
Selection Of ◽  
Supercritical Carbon

Abstract Binary vapour-liquid equilibrium of thymoquinone and carbon dioxide at the isothermal conditions was carried out at temperature 323.15 K and pressures from 6 to 10 MPa. The experimental data were fitted to the Soave-Redlich-Kwong equation of state. Results could be used for selection of process parameters in separation of volatiles from raw oil or for evaluation of existing separation technologies.

scholarly journals PALM KERNEL OIL SOLUBITY EXAMINATION AND ITS MODELING IN EXTRACTION PROCESS USING SUPERCRITICAL CARBON DIOXIDE

REAKTOR ◽  
2013 ◽  
Vol 14 (3) ◽  
pp. 242
Author(s):  
Wahyu Bahari Setianto ◽  
Priyo Atmaji ◽  
Didi Dwi Anggoro
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Palm Kernel ◽  
Extraction Process ◽  
Extraction Curve ◽  
Palm Kernel Oil ◽  
Kernel Oil ◽  
Experimental Solubility Data ◽  
Experimental Solubility ◽  
Supercritical Carbon

Application of  supercritical carbon dioxide (SC-CO2) to vegetable oil extraction became an attractive technique due to its high solubility, short extraction time and simple purification. The method is considered as earth friendly technology due to the absence of chemical usage. Solubility of solute-SC-CO2 is an important data for application of the SC-CO2 extraction. In this work, the equilibrium solubility of the palm kernel oil (PKO) in SC-CO2 has been examined using extraction curve analysis. The examinations were performed at temperature and pressure ranges of  323.15 K to 353.15 K and 20.7 to 34.5 MPa respectively. It was obtained that the experimental solubility were from 0.0160 to 0.0503 g oil/g CO2 depend on the extraction condition. The experimental solubility data was well correlated with a solvent density based model with absolute percent deviation of 0.96. PENENTUAN KELARUTAN MINYAK INTI KELAPA SAWIT DAN PEMODELAN EKSTRAKSI DENGAN KARBON DIOKSIDA SUPERKRITIK. Sehubungan dengan kelarutan yang tinggi, waktu ekstraksi yang pendek dan pemurnian hasil yang mudah, aplikasi karbon dioksida superkritis (SC-CO2) pada ekstraksi minyak nabati menjadi sebuah teknik ekstraksi yang menarik. Karena tanpa penggunaan bahan kimia, metode ekstraksi ini dianggap sebagai teknologi yang ramah lingkungan. Kelarutan zat terlarut pada SC-CO2 merupakan data yang penting dalam aplikasi SC-CO2 pada proses ekstraksi.  Pada penelitian ini,  kelarutan kesetimbangan dari minyak biji sawit (PKO) dalam SC-CO2 telah diuji dengan mengunakan analisa kurva proses ekstraksi. Pengujian kelarutan tersebut dilakukan pada rentang suhu 323,15 K sampai 353,15 K dan rentang tekanan 20,7 MPa sampai 34,5 MPa. Hasil analisa menunjukkan bahwa kelarutan kesetimbangan hasil percobaan  PKO pada SC-CO2 adalah 0.0160 g minyak/g CO2 sampai 0,0503 g minyak/g CO2 tergantung pada kondisi ekstraksi. Data kelarutan kesetimbangan hasil percobaan  telah dikorelasaikan dengan baik menggunakan sebuah model kelarutan yang didasarkan pada densiti pelarut. Pemodelan tersebut mempunyai persen deviasi mutlak  0,96.

Solubility of methane in octane + ethanol at temperatures from 303.15 K to 333.15 K and pressures up to 12.01 MPa

2012 ◽  
Vol 66 (4) ◽  
Author(s):  
Jun-Qing Cai ◽  
Jin-Zhi Qiao
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Solubility Data ◽  
Mixing Rules ◽  
Average Deviation ◽  
Experimental Solubility Data ◽  
Experimental Solubility

AbstractSolubility of methane in octane + ethanol was measured at temperatures ranging from 303.15 K to 333.15 K and pressures ranging from 2.60 MPa to 12.01 MPa. Experimental data were analyzed using the Soave-Redlich-Kwong equation of state with three types of mixing rules, and the estimated average deviation from the experimental solubility data was less than 3.5 %.

scholarly journals Measurement and Modeling of Clemastine Fumarate (Antihistamine Drug) Solubility in Supercritical Carbon Dioxide

2021 ◽  
Author(s):  
Gholamhossein Sodeifian ◽  
Chandrasekhar Garlapati ◽  
Fariba Razmimanesh ◽  
Marziehsadat Ghanaat-Ghamsari
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
Supercritical Carbon Dioxide ◽  
Information Criterion ◽  
Drug Solubility ◽  
Relative Deviation ◽  
Antihistamine Drug ◽  
First Time ◽  
Robinson Equation ◽  
Supercritical Carbon

Abstract The solubilities of clemastine fumarate in supercritical carbon dioxide) ScCO2( were measured for the first time at temperature (308 to 338 K) and pressure (12 to 27 MPa). The measured solubilities were reported in terms of mole faction and it is ranged from 1.61 ×10− 6 to 9.41×10− 6. Various models were used to correlate the data. The efficacy of the models was quantified with corrected Akaike’s information criterion (AICc). A new cluster salvation model was derived to correlate the solubility data. The new model was able to correlate the data and deviation was 10.3% in terms of average absolute relative deviation (AARD). Furthermore, the measured solubilities were also correlated with existing K.-W. Chen et al., cluster salvation model, equation of state (EoS) model and few density models. Among density models, Tippana and Garlapati model was observed to be the best model and corresponding AARD% was 7.57 (corresponding AICc is -678.88). The Peng-Robinson equation of state as temperature independent was able to correlate the data and deviation was 8.25% in terms of AARD% (corresponding AICc is -674.88). Moreover, thermodynamic enthalpies of clemastine fumarate were estimated.

scholarly journals Measurement and modeling of clemastine fumarate (antihistamine drug) solubility in supercritical carbon dioxide

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gholamhossein Sodeifian ◽  
Chandrasekhar Garlapati ◽  
Fariba Razmimanesh ◽  
Marziehsadat Ghanaat-Ghamsari
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
Supercritical Carbon Dioxide ◽  
Information Criterion ◽  
Drug Solubility ◽  
Heats Of Reaction ◽  
Antihistamine Drug ◽  
First Time ◽  
Robinson Equation ◽  
Supercritical Carbon

AbstractThe solubilities of clemastine fumarate in supercritical carbon dioxide (ScCO2) were measured for the first time at temperature (308 to 338 K) and pressure (12 to 27 MPa). The measured solubilities were reported in terms of mole faction (mol/mol total) and it had a range from 1.61 × 10–6 to 9.41 × 10–6. Various models were used to correlate the data. The efficacy of the models was quantified with corrected Akaike’s information criterion (AICc). A new cluster salvation model was derived to correlate the solubility data. The new model was able to correlate the data and deviation was 10.3% in terms of average absolute relative deviation (AARD). Furthermore, the measured solubilities were also correlated with existing K.-W. Chen et al., model, equation of state model and a few other density models. Among density models, Reddy and Garlapati model was observed to be the best model and corresponding AARD was 7.57% (corresponding AICc was − 678.88). The temperature independent Peng–Robinson equation of state was able to correlate the data and AARD was 8.25% (corresponding AICc was − 674.88). Thermodynamic parameters like heats of reaction, sublimation and solvation of clemastine fumarate were calculated and reported.

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