Influence of dextrin content and sintering temperature on the properties of coal fly ash-based tubular ceramic membrane for flue gas moisture recovery
| Autor: | Zheng Zhang, Yuntao Zhang, Dehua Liang, Heng Zhang, Haiping Chen, Jiguang Huang |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Flue gas Materials science Moisture Sintering 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Corrosion Ceramic membrane chemistry Chemical engineering Fly ash 0103 physical sciences Materials Chemistry Ceramics and Composites Dextrin 0210 nano-technology Porosity |
| Zdroj: | Journal of the European Ceramic Society. 41:5696-5710 |
| ISSN: | 0955-2219 |
| Popis: | In this paper, in order to reduce the preparation cost of high-performance ceramic membrane, coal fly ash-based tubular ceramic membrane for flue gas moisture recovery was prepared, and its properties were optimized from two aspects: pore-forming agent (dextrin) content and sintering temperature. The results show that the ceramic membrane with dextrin content of 3 wt.% and sintering temperature of 1150 ℃ has the best performance. Through characterization, the ceramic membrane exhibits an open porosity of 42.0 %, mechanical strength of 26.6 MPa, average pore size of 0.49 μm, pure water flux of 5616 L/(m2 barh). And, it has excellent corrosion resistance in acid and alkali. In addition, the flue gas moisture recovery performance of coal fly ash-based tubular ceramic membrane was studied experimentally. The highest water recovery ratio and the highest recovered water flux is 87.7 % and 6.01 kg/(m2 h, respectively. |
| Databáze: | OpenAIRE |
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