期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 41, 期 11, 页码 5696-5710出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2021.04.055
关键词
Ceramic membrane; Coal fly ash; Dextrin content; Sintering temperature; Moisture recovery
资金
- National Key R&D Program of China [2018YFB0604302]
- Key Research and Development Program of Hebei Province [19273606D]
In this study, a high-performance coal fly ash-based tubular ceramic membrane for flue gas moisture recovery was prepared by optimizing the pore-forming agent content and sintering temperature. The membrane exhibited excellent properties and achieved a high moisture recovery ratio and water flux in experimental studies.
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 celcius 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 mu m, 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.
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