scholarly journals Experimental study on adsorbing of flue gas and its application in preventing spontaneous combustion of coal

2018 ◽  
Vol 36 (9-10) ◽  
pp. 1744-1754 ◽  
Author(s):  
Fei Gao ◽  
Cun-Bao Deng ◽  
Xue-Feng Wang ◽  
Xue-Ming Li ◽  
Feng-Wei Dai
Keyword(s):  
Power Plant ◽  
Adsorption Capacity ◽  
Flue Gas ◽  
Spontaneous Combustion ◽  
Factors Affecting ◽  
Generation Cost ◽  
Spontaneous Combustion Of Coal ◽  
Temperature And Pressure ◽  
Main Components ◽  
Emission Of Greenhouse Gases

We propose an experimental adsorption device, imitating the environment of a coal-mine goaf and the composition of the flue gas in Tashan Mine Power Plant. The characteristics of the coal adsorbing flue gas were studied with the atmospheric volumetric method. The factors affecting the seal of CO2 were analyzed and the effect of power plant flue gas on fire prevention in the goaf was investigated at normal temperature and pressure. It can be inferred from the experiment that N2, SO2, and H2O can also reduce CO2 adsorption capacity. The increase or decrease in pH can increase the adsorption capacity of CO2, which is apparently larger when the pH is decreasing than when the pH is increasing. The O2 adsorption capacity can evidently be reduced when the power plant flue gas is injected into the goaf. The activation energy of coal burned in air is greater than that of coal burned in flue gas, indicating that the use of power plant flue gas, with N2 and CO2 as the main components, to replace the traditional inert gas can not only save N2 generation cost, but also reduce the emission of greenhouse gases, while the power plant flue gas can be adsorbed by coal.

Effects of SO2 on CO2 Adsorption Capacity in Coal Seams for ECBM Considering to Flue Gas from Coal-Fired Power Plant

2008 ◽  
Author(s):  
P.Q. Huy ◽  
K. Sasaki ◽  
S. Yuichi ◽  
T. Kiga ◽  
M. Fujioka ◽  
...  
Keyword(s):  
Power Plant ◽  
Adsorption Capacity ◽  
Flue Gas ◽  
Coal Seams

Causes Analysis of Wet Flue Gas Desulphurization Stack Rainout for the Thermal Powerplant without GGH and its Countermeasures

2013 ◽  
Vol 724-725 ◽  
pp. 1306-1309
Author(s):  
Peng Fei Nie ◽  
Hong Yu Zhang ◽  
Yang Wang
Keyword(s):  
Power Plant ◽  
Low Temperature ◽  
Flue Gas ◽  
Gas Flow ◽  
Electrostatic Precipitator ◽  
Thermal Power ◽  
Efficient Operation ◽  
Factors Affecting ◽  
Mist Eliminator ◽  
Flue Gas Desulphurization

This paper introduces the phenomenon of stack rainout in the wet flue gas desulphurization system for the thermal power plant units without GGH,analyzes the factors affecting rainout of wet stack and finds out the main causes resulting in stack rainout of wet flue gas desulphurization for Wangtan Power Plant without GGH,such as low temperature after the flue gas desulfurizationinsufficient diffusion capability of flue gas flowthe blockage of mist eliminatorpoor operation of electrostatic precipitatorinadequate combustion of boilerhigh speed of flue gas flow in the stackthe effect of climate. Also it is analyzed that the mist eliminator equipment and ensuring the efficient operation of electrostatic precipitator may relieve the phenomenon of stack rainout.

Using CFD to Study Spontaneous Combustion of Coal in Power Plant Stockpile

2018 ◽  
pp. 574-592
Author(s):  
Santosh Kumar Ray ◽  
Niroj Kumar Mohalik ◽  
Asfar Mobin Khan ◽  
Debashish Mishra ◽  
Nageshwar Sahay
Keyword(s):  
Power Plant ◽  
Spontaneous Combustion ◽  
Spontaneous Combustion Of Coal

scholarly journals Boiler Temperature and Pressure Monitoring System for Thermal Power Plant through LabVIEW

2020 ◽  
Vol 988 ◽  
pp. 012079
Author(s):  
Joshuva Arockia Dhanraj ◽  
Kuppan Chetty Ramanathan ◽  
S Priyadharsini ◽  
P Jayaraman ◽  
M Jothi Sankar
Keyword(s):  
Power Plant ◽  
Monitoring System ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Pressure Monitoring ◽  
Temperature And Pressure

scholarly journals Investigation on the Corrosion of the Elbows in the Flue Gas Cooler of a 600 MW Coal-Fired Power Plant

ACS Omega ◽  
2020 ◽  
Vol 5 (50) ◽  
pp. 32551-32563
Author(s):  
Peiyuan Pan ◽  
Weijian Zhou ◽  
Heng Chen ◽  
Naiqiang Zhang
Keyword(s):  
Power Plant ◽  
Flue Gas

Evaluation of Si Coating on Ferritic Steels by CVD-FBR Technology in Steam Oxidation

2009 ◽  
Vol 289-292 ◽  
pp. 413-420 ◽  
Author(s):  
F.J. Bolívar ◽  
L. Sánchez ◽  
M.P. Hierro ◽  
F.J. Pérez
Keyword(s):  
Power Plants ◽  
Protective Coatings ◽  
Steam Oxidation ◽  
Steam Turbines ◽  
X Ray Diffraction ◽  
Steam Power ◽  
Factors Affecting ◽  
Steam Power Plants ◽  
Temperature And Pressure ◽  
Major Factors

The development of new power generation plants firing fossil fuel is aiming at achieving higher thermal efficiencies of the energy conversion process. The major factors affecting the efficiency of the conventional steam power plants are the temperature and, to a lesser extent, the pressure of the steam entering the turbine. The increased operating temperature and pressure require new materials that have major oxidation resistance. Due to this problem, in the last years numerous studies have been conducted in order to develop new coatings to enhance the resistance of steels with chromium contents between 9 and 12% wt against steam oxidation in order to allow operation of steam turbines at 650 0C. In this study, Si protective coatings were deposited by CVD-FBR on ferritic steel P-91. These type of coatings have shown to be protective at 650 0C under steam for at least 3000 hours of laboratory steam exposure under atmospheric pressure. Morphology and composition of coatings were characterized by different techniques, such as scanning electron microscopy (SEM), electron probe microanalysis, and X-ray diffraction (XRD). The results show a substantial increase of steam oxidation protection afforded by Si coating by CVD-FBR process.

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