scholarly journals Characterization of Ca(OH)2/fly ash sorbents for flue gas desulfurization

2003 ◽  
Vol 131 (2-3) ◽  
pp. 212-222 ◽  
Author(s):  
Ren-Bin Lin ◽  
Shin-Min Shih
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Flue Gas Desulfurization

Thermal and mechanical characterization of composite produced from recycled PE and flue gas desulfurization gypsum

2019 ◽  
Vol 53 (23) ◽  
pp. 3325-3333 ◽  
Author(s):  
Ibrahim Bilici ◽  
Celal U Deniz ◽  
Beytullah Oz
Keyword(s):  
Maleic Anhydride ◽  
Flue Gas ◽  
Mechanical Characterization ◽  
Flue Gas Desulfurization ◽  
Melt Flow Rate ◽  
Recycled Polyethylene ◽  
Prepared Composite ◽  
Surface Morphologies ◽  
Microscopy Images

Varying ratios of industrial byproduct of flue gas desulfurization gypsum and recycled polyethylene were used to prepare composite matrices in order to develop an eco-friendly material. Small ratios of maleic anhydride grafted polyethylene were used as a compatibilizer. Surface morphologies and microstructures were examined by scanning electron microscopy images. Thermal behavior of the prepared composite materials was then investigated through thermogravimetry techniques. Hardness and tensile strength of the composite were evaluated through variations made to the contribution of individual components. The resulting composites exhibit increasing melt flow rate values, while hardness decreases with increasing maleic anhydride grafted polyethylene ratios. Amount of torque required to blend mixture also increases with maleic anhydride grafted polyethylene content.

Flue gas desulfurization (FGD) fly ash as a sustainable, safe alternative for cement-based materials

2021 ◽  
Vol 283 ◽  
pp. 124646
Author(s):  
Ivan Navarrete ◽  
Felipe Vargas ◽  
Patricia Martinez ◽  
Alvaro Paul ◽  
Mauricio Lopez
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Safe Alternative ◽  
Cement Based Materials

Increasing seawater alkalinity using fly ash to restore the pH and the effect of temperature on seawater flue gas desulfurization

2019 ◽  
Vol 21 (4) ◽  
pp. 962-973 ◽  
Author(s):  
Seung-Ki Back ◽  
A. H. M. Mojammal ◽  
Hyeun-Ho Jo ◽  
Jin-Ho Kim ◽  
Min-Jae Jeong ◽  
...  
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Effect Of Temperature

Process Optimization of Preparation and Performance Characterization of Oily Sludge-Based Adsorbent Material by Pyrolysis

2009 ◽  
Vol 79-82 ◽  
pp. 1971-1974
Author(s):  
Guang Ying Zhang ◽  
Ying Fei Hou ◽  
Chun Hu Li ◽  
Wei Zhu ◽  
Jian Zhang
Keyword(s):  
Heating Rate ◽  
Flue Gas ◽  
Pyrolysis Temperature ◽  
Influencing Factor ◽  
Nitrogen Atmosphere ◽  
Flue Gas Desulfurization ◽  
Oily Sludge ◽  
Breakthrough Time ◽  
And Performance

The oily sludge-based adsorbents for flue gas desulfurization were prepared by pyrolysis. Based on benzene adsorptivity, the conditions of pyrolysis process were optimized. The optimum prepared conditions of adsorbent material were in nitrogen atmosphere and 550°C, 4h, 10°C/min for the pyrolysis temperature, pyrolysis time and heating rate, respectively. In this case, the maximum benzene adsorbability was 60.12mg/g. Moreover, the main influencing factor was pyrolysis temperature, secondly was pyrolysis time and finally was heating rate. The sludge-based adsorbents were appropriate for flue gas desulfurization. The sulfur capacity of adsorbents via a flue gas desulfurization test after subsequent processing was about 3% and breakthrough time could keep to 109 min.

Surface Characterization of the Mechanism for Decreased Boiler Slagging via Fly Ash Surface Modification

1985 ◽  
Vol 65 ◽  
Author(s):  
Christopher J. Macey
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Surface Characterization ◽  
Depth Profiling ◽  
Pilot Scale ◽  
Pulverized Coal ◽  
Pulverized Coal Combustion ◽  
Utility Boilers ◽  
Combustion Experiment

ABSTRACTSlagging difficulties encountered in large, pulverized coal-fired utility boilers can be alleviated by using recently developed chemical conditioners designed to inhibit the agglomeration of molten fly ash particles. Slagging results from the impaction and accretion on the boiler interior surfaces of molten ash particles in the flue gas resulting from the combustion of coal. Electron Spectroscopy for chemical Analysis (ESCA) and ion sputtering depth profiling were utilized to examine the mechanism whereby a fuel conditioner containing copper oxychloride effectively reduced slag deposition rates during a pilot-scale, pulverized coal combustion experiment.

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