Study on Fly Ash Adhesion Characteristics and Deposition Mechanism in Shell Coal Gasification Process

Han Xu Li; Fei Ma; Xin Sheng; Ming Jun Ji

doi:10.4028/www.scientific.net/AMR.233-235.789

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Study on Fly Ash Adhesion Characteristics and...

Study on Fly Ash Adhesion Characteristics and Deposition Mechanism in Shell Coal Gasification Process

Abstract:

This paper describes the characteristics and mechanism of fly ash deposited in Shell coal gasification process. The chemical composition, particle size distribution, surface topography and elemental composition of fly ash samples derived from coal A and coal B are studied by X-ray fluorescence spectrometer, JX-2000 microscopic image analyzer and computer controlled scanning electron microscopy (SEM/EDX) respectively. The results show that the differences in ash deposition characteristics result from the differences in surface properties and element composition of fly ash particles generated from different coal feed. The fly ash formation and deposition mechanism are discussed based on physicochemical changes in gasification, particle size distribution and surface composition enriched in Ca, Fe in fly ash particles. The results can serve as reference data for a variety of deposition studies.

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

789-793

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.789

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Online since:

May 2011

Authors:

Han Xu Li, Fei Ma, Xin Sheng, Ming Jun Ji

Keywords:

Deposition Characteristics, Fly Ash (FA), Shell Coal Gasification

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References

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