气体分布器孔径对泡沫分离过程影响的研究The Effect of the Pore Size of Gas Distributor on Foam Separation Process
胡滨,朱海兰,吴兆亮
摘要(Abstract):
气体分布器孔径是控制气泡大小的重要因素,也是制约泡沫分离效率的重要因素。开发了一种高分子膜材料用于泡沫分离气体分布器,以十二烷基硫酸钠(SDS)为体系,研究了气体分布器孔径对表面过剩,质量流率,消泡液的表观液体流速,泡沫排液速率以及泡沫分离效率的影响。结果表明高分子膜材料适合用于泡沫分离塔的气体分布器。气体分布器孔径对表面过剩影响不明显,而对质量流率有显著影响。当平均孔径从23μm增大到165μm时,消泡液的表观液体流速降低89%,泡沫排液速率降低93%;SDS富集比从1.14增大到2,提高75%,回收率下降80%。由导出的富集比和回收率计算式得出的计算值与实验值吻合很好。
关键词(KeyWords): 泡沫分离;膜材料;孔径;气体分布器;吸附;排液;十二烷基硫酸钠
基金项目(Foundation): 国家自然科学基金(21346008);; 河北省自然科学基金(B2011202056)
作者(Author): 胡滨,朱海兰,吴兆亮
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