Processing of phosphorites and additives with researching their thermodynamical properties

Akhtamova, Maftuna; Temirov, Uktam; Khurramov, Navruzbek; Shukurov, Azim; Karshiev, Bekhzod

doi:10.1051/e3sconf/202343403016

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…The choice of a particular model and its parameters depends on the available experimental data and the required accuracy of predictions. Sometimes it may be necessary to use more complex models or combinations of models to best describe the temperature dependence of steam elasticity [1,2].…”

Section: Methodsmentioning

confidence: 99%

Method for determining estimates of random variable models for describing phase equilibrium in rectification processes

Mukhitdinov,

Kadirov,

Abrorov

et al. 2024

E3S Web Conf.

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The phase equilibrium modeling for multi-component systems is essential in process systems engineering. In particular, phase stability analysis, Gibbs free energy minimization and estimation of parameters in thermodynamic models are challenging global optimization problems involved in phase equilibrium calculations and modeling for both reactive and non-reactive systems. To date, many significant works have been performed in the area of global optimization, and several algorithms and computational contributions of global optimization have been used for solving these problems; global optimization methods used include both deterministic and stochastic algorithms. To the best of our knowledge, there is no review in the literature that focuses on the global optimization methods and their applications to phase equilibrium modeling and calculations. In this paper, we briefly describe the deterministic and stochastic optimization algorithms selected for our rectification process, and then consider their use for phase stability analysis, Gibbs free energy minimization, and parameter estimation in phase equilibrium models. In short, we present an overview of global optimization for modeling and computing the phase behavior of systems with and without chemical reactions, including the prediction of azeotropes and critical points.

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Section: Methodsmentioning

confidence: 99%

Method for determining estimates of random variable models for describing phase equilibrium in rectification processes

Mukhitdinov,

Kadirov,

Abrorov

et al. 2024

E3S Web Conf.

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“…The amount of lost steam and condensate when the above-mentioned equipment is working in KES is 1-3% of the amount of steam produced in the steam generator. To make up for this lost steam and condensate, additional highly purified water is continuously supplied to the plant from the water treatment plant [5][6][7].…”

Section: Methodsmentioning

confidence: 99%

Methods of using waste from steam-gas thermal power plants

Olzhaev,

Nurmurodov,

Ganiev

et al. 2024

E3S Web of Conf.

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At present, the composition of steam and condensate in periodic motion during 45кthe continuous operation of thermal power plants is getting worse and worse. Great importance is attached to the prevention of industrial wastewater pollution. In industry, water is used as a raw material and energy source, as a coolant or heater, as a solvent and extractant, and it is purified in wastewater treatment plants and discharged back into water bodies. Therefore, it is important to further improve the engineering work of wastewater treatment in water conservation. Water is the main technological raw material for obtaining steam in thermal power plants. It is the most widely used product in the continuous operation of the plant.

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Molecular simulation of competing sorption of U(VI) on the surface of clay and mineral wastes

Sharafutdinov,

Razhabboev,

Kadirova

et al. 2024

BIO Web Conf.

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In-situ uranium extraction technology, nuclear fuel processing, water purification require detailed study of sorption process of U(VI) and some compete coxisting ions onto clay and waste materials. The Monte-Carlo method used for modeling of the U(VI), Al(III), Fe(II)/Fe(III) sorption on the surface of the clay materials (vermiculite, kaolinite, illite, palygorskite, biotite, montmorillonite, nontronite) and mineral wastes (zincite, franklinite) which are capable to effective sorption of U(VI) on the mineral surfaces. The molecular modeling used different species (UO22+, UO2SO4, UO2(SO4)22−, AlSO4+, Al(SO4)2−, FeSO4−) in acidic sulfate solutions (Н2SO4, НSO4−, SO42−). Different sorption energy values indicate chemical nature of the adsorption process with predominant sorption of uranium ions (UO22+ and UO2(SO4)22−) compared with Fe/Al ion species.

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Processing of phosphorites and additives with researching their thermodynamical properties

Cited by 9 publications

References 12 publications

Method for determining estimates of random variable models for describing phase equilibrium in rectification processes

Method for determining estimates of random variable models for describing phase equilibrium in rectification processes

Methods of using waste from steam-gas thermal power plants

Molecular simulation of competing sorption of U(VI) on the surface of clay and mineral wastes

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