Numerical Simulation of Thermal Plasma Gasification Process

2015 ◽  
Vol 799-800 ◽  
pp. 90-94 ◽  
Author(s):  
Sooseok Choi
Keyword(s):  
Numerical Simulation ◽  
Numerical Analysis ◽  
Thermal Plasma ◽  
Plasma Reactor ◽  
Plasma Gasification ◽  
Arc Voltage ◽  
Syngas Production ◽  
Gasification Process ◽  
Computational Fluid Dynamics Cfd ◽  
Reactor Temperature

Numerical analysis of plasma gasification process was carried out base on the combination of magnetohydrodynamics (MHD) and computational fluid dynamics (CFD). A two stage gasification system which consists of a heater and a plasma rector was used to enhance syngas production in the present work. Nitrogen thermal plasma jet generated by a low power plasma torch was analyzed by a self-developed MHD code, and complex thermal flow field in the plasma reactor was simulated with a commercial CFD code. The accuracy of numerical simulation was confirmed from the comparison between numerical results and experimentally measured data of arc voltage and reactor temperature. From the numerical analysis, a high temperature for the thermal cracking of methane was expected in the upper region of the plasma reactor.

Experimental and Numerical Investigation of Thermal Plasma Synthesis of Silicon

2015 ◽  
Vol 15 (4) ◽  
pp. 345-354
Author(s):  
Yudong Li ◽  
Ramana Reddy
Keyword(s):  
Thermal Plasma ◽  
Gas Flow ◽  
Plasma Reactor ◽  
Flow Distribution ◽  
Molar Ratio ◽  
Plasma Synthesis ◽  
Ansys Fluent ◽  
Thermal Plasma Synthesis ◽  
Computational Fluid Dynamics Cfd ◽  
Reactor Temperature

AbstractExperimental and numerical investigations were carried out on synthesis of Si from SiO2 using thermal plasma reactor. Temperature profile and gas flow distribution in the thermal plasma reactor were developed by the computational fluid dynamics (CFD) with ANSYS Fluent. The predicted temperatures are in good agreement with the experimentally measured temperatures in the reactor. Experiments were carried out at power 22.5 kw, SiO2 feed rate of 4 g/min, molar ratio of SiO2 to methane varied from 1 to 4:1. Samples from different sections of the reactor are collected and characterized using SEM and XRD. Effect of molar ratio of SiO2 to methane on the yield of Si showed that increase in molar ratio increased the Si yield. Based on the analysis of experimental and numerical results, a mechanism of thermal plasma synthesis of Si from SiO2 is proposed.

Reactor temperature profiles of non-thermal plasma reactor using fiber Bragg grating sensor

2016 ◽  
Vol 244 ◽  
pp. 206-212 ◽  
Author(s):  
N. Zazwani R. ◽  
R.K. Raja Ibrahim ◽  
S.M.A. Musa ◽  
Raheleh Hosseinian S. ◽  
Asrul Izam Azmi ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Thermal Plasma ◽  
Plasma Reactor ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Temperature Profiles ◽  
Non Thermal Plasma ◽  
Reactor Temperature ◽  
Bragg Grating Sensor

A techno-economic assessment of syngas production by plasma gasification of municipal solid waste as a substitute gaseous fuel

2020 ◽  
pp. 1-44
Author(s):  
Néstor D. Montiel-Bohórquez ◽  
Juan D. Saldarriaga-Loaiza ◽  
Juan F. Pérez
Keyword(s):  
Power Consumption ◽  
Plasma Temperature ◽  
Gaseous Fuel ◽  
Waste To Energy ◽  
Process Efficiency ◽  
Main Process ◽  
Plasma Gasification ◽  
Syngas Production ◽  
Gasification Process ◽  
Energy And Exergy

Abstract The updraft plasma gasification process of different municipal solid wastes (MSW) to produce syngas as substitute gaseous fuel was assessed from a techno-economic viewpoint. The plasma gasification process was modelled under a thermo-chemical approach using Aspen Plus. The model validation has been carried out with experimental data from literature, reaching an average relative error of 6.23%. The plasma torch power consumption was one of the main process parameters that affects the energy and exergy efficiencies. In spite of increasing moisture content of MSW, from 26.61% to 57.9%, the energy and exergy efficiencies expanded by 1.5% and 5.4% on average, respectively, which ascribed to the reduction of torch power consumption; this behavior resulted as the torches thermally degraded a lower fraction of dry MSW. Whereas, if plasma temperature increased (2500°C to 4000°C), the gasification efficiencies diminished because of the torch power consumption boosted by 28.3%. Furthermore, the parameter combinations process (air flow and plasma temperature) was found to reach the highest process efficiency, the efficiency ranged from 79.22% to 83.46%, highlighting the plasma gasification flexibility. The levelized cost of syngas production varied from 15.83 to 26.21 ¢US/kWh. Therefore, to make these projects feasible (waste to energy), a waste disposal charge that must be ranged between 14.67 and 26.82 ¢US/kWh was proposed.

Numerical analysis on a thermal plasma reactor for HFC-23 treatment

2011 ◽  
Vol 11 (5) ◽  
pp. S94-S98 ◽  
Author(s):  
Sooseok Choi ◽  
Kyu Young Cho ◽  
Joo Man Woo ◽  
Jong Choo Lim ◽  
Joong Kee Lee
Keyword(s):  
Numerical Analysis ◽  
Thermal Plasma ◽  
Plasma Reactor

Municipal Solid Waste Treatment Using Plasma Gasification with the Potential Production of Synthesis Gas (Syngas)

2019 ◽  
Vol 2 (1) ◽  
pp. 8-12
Author(s):  
Angela Hartati ◽  
Diah Indriani Widiputri ◽  
Arbi Dimyati
Keyword(s):  
Waste Treatment ◽  
Composition Analysis ◽  
Energy Agency ◽  
Plasma Gasification ◽  
Gasification Process ◽  
Solid Waste Treatment ◽  
Pre Treatment ◽  
Waste Separation ◽  
Gasification Efficiency ◽  
Arc Plasma Torch

This research was conducted for the purpose to overcome Indonesia waste problem. The samples are classified into garden waste, paper waste, wood, food waste, and MSW with objective to identify which type of waste give out more syngas since there is waste separation in Indonesia. All samples were treated by plasma gasification without pre-treatment (drying). Arc plasma torch used in this experiment was made by National Nuclear Energy Agency (BATAN) and used Argon as the gas source. Then the torch was connected to self-designed gasification chamber and gas washing system before injected into a gas bas for composition analysis. Another objective is to identify factors that may affect the gasification efficiency and the experiment shows that moisture content is not really affecting the efficiency but the duration of the process. The mass reduction of each samples were recorded, then the gas produced from the gasification process were analyzed. The result shows that food has the highest mass percentage reduced and producing the highest amount of hydrogen amongst other samples. However, treating MSW also produce considerably high amount of hydrogen. In conclusion, MSW direct treatment (without separation) using plasma gasification is feasible since it still produces desirable quality of syngas.

THERMAL PLASMA GASIFICATION OF BIOMASS FOR FUEL GAS PRODUCTION

2009 ◽  
Vol 13 (3-4) ◽  
pp. 299-313 ◽  
Author(s):  
Milan Hrabovsky ◽  
M. Hlina ◽  
M. Konrad ◽  
Vladimir Kopecky ◽  
T. Kavka ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Gas Production ◽  
Fuel Gas ◽  
Plasma Gasification
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