A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels
This study reports a method for the quantification of alkali and alkaline earth metallic (AAEM) species in bioslurry fuels. The so-called evaporation-ashing-digestion-ion chromatography (IC) method consists of four steps, including evaporation that converts bioslurry into solid-like residue, ashing...
| Main Authors: | , , |
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| Format: | Journal Article |
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American Chemical Society
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/42342 |
| _version_ | 1848756393440444416 |
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| author | Zhang, Mingming Gao, Xiangpeng Wu, Hongwei |
| author_facet | Zhang, Mingming Gao, Xiangpeng Wu, Hongwei |
| author_sort | Zhang, Mingming |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study reports a method for the quantification of alkali and alkaline earth metallic (AAEM) species in bioslurry fuels. The so-called evaporation-ashing-digestion-ion chromatography (IC) method consists of four steps, including evaporation that converts bioslurry into solid-like residue, ashing that converts the residue into ash, acid digestion that dissolves the ash into a solution, and IC analysis that quantifies the AAEM species in the solution. The novelty of the method is the combination of the evaporation step with the existing ashing-digestion-IC method that is developed for solid fuels but notsuitable for bioslurry fuels. The evaporation step consists of multi-steps of slow heating and holding at various segment temperatures corresponding to the boiling points of the major compounds in bio-oil, resulting in progressive evaporation of biooil vapors with little carry-over of biochar particles. The method has been successfully applied for quantifying AAEM species in bioslurry fuels with various biochar loading levels (5-20 wt %), with small relative standard errors (within ±3%) and low limitations of quantification (0.4-3.0 ppm). It also overcomes the biochar incomplete oxidation issue associated with the microwave-digestion-based methods, which considerably underestimate the concentrations of AAEM species in bioslurry fuels. |
| first_indexed | 2025-11-14T09:11:29Z |
| format | Journal Article |
| id | curtin-20.500.11937-42342 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:11:29Z |
| publishDate | 2013 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-423422017-09-13T14:23:34Z A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels Zhang, Mingming Gao, Xiangpeng Wu, Hongwei This study reports a method for the quantification of alkali and alkaline earth metallic (AAEM) species in bioslurry fuels. The so-called evaporation-ashing-digestion-ion chromatography (IC) method consists of four steps, including evaporation that converts bioslurry into solid-like residue, ashing that converts the residue into ash, acid digestion that dissolves the ash into a solution, and IC analysis that quantifies the AAEM species in the solution. The novelty of the method is the combination of the evaporation step with the existing ashing-digestion-IC method that is developed for solid fuels but notsuitable for bioslurry fuels. The evaporation step consists of multi-steps of slow heating and holding at various segment temperatures corresponding to the boiling points of the major compounds in bio-oil, resulting in progressive evaporation of biooil vapors with little carry-over of biochar particles. The method has been successfully applied for quantifying AAEM species in bioslurry fuels with various biochar loading levels (5-20 wt %), with small relative standard errors (within ±3%) and low limitations of quantification (0.4-3.0 ppm). It also overcomes the biochar incomplete oxidation issue associated with the microwave-digestion-based methods, which considerably underestimate the concentrations of AAEM species in bioslurry fuels. 2013 Journal Article http://hdl.handle.net/20.500.11937/42342 10.1021/ef401632h American Chemical Society restricted |
| spellingShingle | Zhang, Mingming Gao, Xiangpeng Wu, Hongwei A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title | A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title_full | A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title_fullStr | A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title_full_unstemmed | A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title_short | A Method for the Quantification of Alkali and Alkaline Earth Metallic Species in Bioslurry Fuels |
| title_sort | method for the quantification of alkali and alkaline earth metallic species in bioslurry fuels |
| url | http://hdl.handle.net/20.500.11937/42342 |