Partitioning behavior of Arsenic in circulating fluidized bed boilers co-firing petroleum coke and coal

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dc.contributor.authorDuan, Lunbo
dc.contributor.authorCui, Jian
dc.contributor.authorJiang, Ying
dc.contributor.authorZhao, Changsui
dc.contributor.authorAnthony, Edward J.
dc.date.accessioned2017-06-15T14:57:07Z
dc.date.available2017-06-15T14:57:07Z
dc.date.issued2017-06-05
dc.description.abstractThe emission of Arsenic from coal-fired power plants has generated widespread environmental and human health concerns. This paper discusses Arsenic partitioning from three 440 t/h circulating fluidized bed (CFB) boilers co-firing petroleum coke and coal. All the boilers were equipped with electrostatic precipitator (ESP) or fabric filter (FF), and wet flue gas desulfurization (WFGD). Flue gas was sampled simultaneously both up- and down-stream of the ESP/FF and at the outlet of the WFGD based on EPA Method 29. Concurrent with flue gas sampling, feed fuel, bottom ash, ESP/FF ash, WFGD gypsum, WFGD wastewater, limestone slurry and flush water were also collected. The results show that, for three tested CFB boilers, the overall mass balance ratios of As ranged from 80.0%–114.2%, which can be considered to be acceptable and reliable. Most of the As was distributed in the bottom ash and ESP/FF ash with the values of 17.4%–37.5% and 55.6%–77.5%, respectively. Speciation analysis suggests that As5 + was the major water-soluble species in the feed fuel, bottom ash and fly ash, while As3 + was found to be the dominant species in WFGD wastewater. For three CFB boilers, the concentrations of total As in the stack emission were 0.97, 0.32 and 0.31 μg/m3, respectively. The CFB boiler equipped with ESP/FF + WFGD was shown to be able to provide good control of the emission of As emitted into the atmosphere.en_UK
dc.identifier.citationLunbo Duan, Jian Cui, Ying Jiang, Changsui Zhao, Edward John Anthony, Partitioning behavior of Arsenic in circulating fluidized bed boilers co-firing petroleum coke and coal, Fuel Processing Technology, Volume 166, November 2017, Pages 107-114en_UK
dc.identifier.issn0378-3820
dc.identifier.urihttp://dx.doi.org/10.1016/j.fuproc.2017.05.003
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12034
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-Non-Commercial-No Derivatives 3.0 Unported (CC BY-NC-ND 3.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectArsenicen_UK
dc.subjectCo-firing petroleum coke and coalen_UK
dc.subjectMass balanceen_UK
dc.subjectCirculating fluidized beden_UK
dc.subjectPartitioning behavioren_UK
dc.subjectSpeciation analysisen_UK
dc.titlePartitioning behavior of Arsenic in circulating fluidized bed boilers co-firing petroleum coke and coalen_UK
dc.typeArticleen_UK

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