乳化液水柴油处理陶瓷膜的研制

Q3 Materials Science

Cerâmica Pub Date : 2022-09-01 DOI:10.1590/0366-69132022683873260

N. Kamoun, F. Jamoussi, M. A. Rodríguez

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引用次数: 1

摘要

本研究的目的是开发一种低成本的陶瓷管状膜，使用廉价的材料，即天然粘土，石墨作为致孔剂。这种低成本的膜可以用作多层陶瓷膜制备的过滤器或多孔支架。为此，采用挤压成形方法。选择石墨作为致孔添加剂。对原料进行了物理化学和形态表征。对比研究了孔隙素含量对膜特性的影响。最后选择石墨添加量为15wt %，烧结温度为850℃。所得膜的孔隙率为41%，直径抗压强度为4 MPa，在碱性和酸性条件下具有较好的耐腐蚀性。以压力为函数，评价了膜支撑对柴油水乳状液的净化性能。使用15%的孔隙样品进行过滤试验，浊度抑制系数为95%。因此，认为该膜可适用于柴油/水乳液处理。

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Development of a ceramic membrane for emulsion water-diesel treatment

The purpose of this study was the development of a low-cost ceramic tubular membrane, using inexpensive materials, namely natural clay, and graphite as a porogenic agent . Such a low-cost membrane can be used as filters or porous supports for the preparation of multilayer ceramic membranes. Extrusion was used as a shape-forming method for this purpose. Graphite was selected as a porogenic additive. Raw materials were physicochemically and morphologically characterized. A comparative study of the influence of porogen content on membrane characteristics was carried out. Finally a graphite addition of 15 wt% and 850 °C as the sintering temperature were chosen. The obtained membrane had 41 vol% of porosity, diametral compression strength of 4 MPa, and relatively good corrosion resistance in basic and acid conditions. The performance of the membrane support was evaluated for diesel-in-water emulsion depuration as a function of pressure. Filtration test using 15% of porogen sample led to turbidity rejection factor of 95%. Therefore, it was considered that this membrane can be suitable for diesel/water emulsion treatment.

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来源期刊

Cerâmica Materials Science-Ceramics and Composites

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： A Revista Cerâmica, órgão oficial da Associação Brasileira de Cerâmica (ABCERAM) publica contribuições originais de interesse na área de cerâmica, compreendendo arte cerâmica, abrasivos, biocerâmicas, cerâmicas avançadas, cerâmica branca, cerâmica de mesa, cerâmica eletroeletrônica, cerâmica estrutural, cerâmica magnética, cerâmica nuclear, cerâmica óptica, cerâmica química, cerâmica termomecânica, cerâmica vermelha, cimento, compósitos de matriz cerâmica, materiais refratários, materiais de revestimento, matérias-primas, vidrados, vidros e vitrocerâmicas, análise microestrutural, ciência básica, instrumentação, processos de fabricação, síntese de pós, técnicas de caracterização etc.