Different methods for the characterization of ash compositions in co-firing boilers

Jan-Erik Eriksson, Tooran Khazraie Shoulaifar, Leena Hupa

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)


With increased co-firing of coal and different biomasses in power plants, there is a growing need to study and characterize the produced, often heterogeneous ashes and to assess their utilization as secondary raw materials. In this work, we compare different methods for characterizing the ash compositions. These methods include scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDS), X-ray fluorescence (XRF) and inductively coupled plasma emission spectroscopy (ICP-OES). The content of carbonaceous residues in the ashes was measured with CHNS analyzer. The methods and the pretreatment required for each of the analysis were studied in detail for three ashes: (1) coal, (2) peat and wood, (3) peat and wood residue with dolomite addition. The limitations of each method will be discussed. This work gives guidelines for selecting a rapid and reliable method for analyzing the suitability of the ash for a particular application.

Original languageUndefined/Unknown
Title of host publicationEnergy Technology 2018. TMS 2018
EditorsZiqi Sun, Cong Wang, Donna Post Guillen, Neale R Neelameggham, Lei Zhang, John A. Howarter, Tao Wang, Elsa Olivetti, Mingming Zhang, Dirk Verhulst, Xiaofei Guan, Allie Anderson, Shadia Ikhmayies, York R. Smith, Amit Pandey, Sarma Pisupati, Lu Huimin
ISBN (Electronic)978-3-319-72362-4
ISBN (Print)978-3-319-72361-7
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventTMS Annual Meeting & Exhibition - TMS Annual Meeting & Exhibition 2018
Duration: 11 Mar 201815 Mar 2018


ConferenceTMS Annual Meeting & Exhibition

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