Thermodynamic and Kinetic Studies on Palm Stearin and Fully Hydrogenated Soybean Oil Binary Systems

Almond shell (AS) is a low-cost adsorbent used in this study for the removal of methylene blue (MB), crystal violet (CV), and Congo red (CR) from an aqueous solution in single and mixture binary systems. The low-cost adsorbent was characterized by FTIR and SEM analysis. The effects of AS dose, contact time, initial dye concentration, pH, and temperature on MB, CV, and CR adsorption were studied in a single system. In a binary system, the MB, CV, and CR were removed from the mixture of MB+CR, CV+MB, and CV+CR with a percentage in volume ranging from 0 to 100 % in MB and CV, and CR. Kinetic studies showed rapid sorption following a second-order kinetic model with of contact time of 10 min. The modulation of adsorption isotherms showed that retention follows the Langmuir model. The thermodynamic parameters proved that the MB, CV, and CR adsorption process was feasible, spontaneous, and exothermic. The synergy adsorption between dyes in a binary mixture of MB+CR and CV+CR, while the competition adsorption between dyes in a binary mixture of MB+ CV.

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Evaluation of SFC/FT-IR for examination of hydrogenated soybean oil

Journal of Agricultural and Food Chemistry ◽

10.1021/jf00003a022 ◽

1991 ◽

Vol 39 (3) ◽

pp. 542-548 ◽

Cited By ~ 18

Author(s):

Elizabeth M. Calvey ◽

Richard E. McDonald ◽

Samuel W. Page ◽

Magdi M. Mossoba ◽

Larry T. Taylor

Keyword(s):

Soybean Oil ◽

Ft Ir ◽

Hydrogenated Soybean Oil

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Preparation of hydrogenated soybean oil of high oleic oil with supported catalysts

Food Bioscience ◽

10.1016/j.fbio.2018.01.010 ◽

2018 ◽

Vol 22 ◽

pp. 91-98 ◽

Cited By ~ 8

Author(s):

Yue Zhao ◽

Yue Ren ◽

Ruchun Zhang ◽

Lu Zhang ◽

Dianyu Yu ◽

...

Keyword(s):

Soybean Oil ◽

Supported Catalysts ◽

High Oleic ◽

Hydrogenated Soybean Oil

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Dietary soybean oil, canola oil and partially-hydrogenated soybean oil affect testicular tissue and steroid hormone levels differently in the miniature pig

Food and Chemical Toxicology ◽

10.1016/j.fct.2019.110927 ◽

2020 ◽

Vol 135 ◽

pp. 110927

Author(s):

Daisuke Miyazawa ◽

Naoki Ohara ◽

Kazuyo Yamada ◽

Yuko Yasui ◽

Kazuya Kitamori ◽

...

Keyword(s):

Soybean Oil ◽

Canola Oil ◽

Steroid Hormone ◽

Testicular Tissue ◽

Miniature Pig ◽

Hormone Levels ◽

Partially Hydrogenated Soybean Oil ◽

Hydrogenated Soybean Oil

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Electrochemical Hydrogen Production Using Separated-Gas Cells for Soybean Oil Hydrogenation

Processes ◽

10.3390/pr8070832 ◽

2020 ◽

Vol 8 (7) ◽

pp. 832

Author(s):

Jorge Eduardo Esquerre Verastegui ◽

Marco Antonio Zamora Antuñano ◽

Juvenal Rodríguez Resendiz ◽

Raul García García ◽

Pedro Jacinto Paramo Kañetas ◽

...

Keyword(s):

Fuel Cell ◽

Hydrogen Production ◽

Soybean Oil ◽

Constant Temperature ◽

Pem Fuel Cell ◽

Electrochemical Process ◽

Second Stage ◽

Abundant Element ◽

Hydrogenated Soybean Oil ◽

The Universe

Although hydrogen is the most abundant element in the universe, it is not possible to find it in its purest state in nature. In this study, two-stage experimentation was carried out. The first stage was hydrogen production. The second stage was an electrochemical process to hydrogenate soybean oil in a PEM fuel cell. In the fist stage a Zirfon Perl UTP 500 membrane was used in an alkaline hydrolizer of separated gas to produce hydrogen, achieving 9.6 L/min compared with 5.1 L/min, the maximum obtained using a conventional membrane. The hydrogen obtained was used in the second stage to feed the fuel cell hydrogenating the soybean oil. Hydrogenated soybean oil showed a substantial diminished iodine index from 131 to 54.85, which represents a percentage of 58.13. This happens when applying a voltage of 90 mV for 240 min, constant temperature of 50 °C and one atm. This result was obtained by depositing 1 mg of Pt/cm 2 in the cathode of the fuel cell. This system represents a viable alternative for the use of hydrogen in energy generation.

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