Non-Fouling Ceramic Membranes for Treatment of Metastable Oil/Water Emulsions

[*] Higgins 9501443 该小型企业创新研究第二阶段项目旨在开发通过陶瓷错流过滤处理稳定性差（亚稳）的油/水乳液的改进方法，该陶瓷错流过滤具有高度抗污染性，并且相关成本相对较低。该计划的总体目标包括：（a）对采出沃茨和类似进料流的错流过滤所固有的膜污染过程及其对乳状液膜性能的依赖性有更全面和基本的了解，以及（B）在低成本陶瓷模块上开发高度抗污染的膜。实验工作将包括修改和优化的膜制造方法侦察在第一阶段的工作，长期的错流过程测试的膜活和模拟油/水乳液流，和彻底的物理和化学特性的制造膜，污染膜，和主要的污垢物种。据预计，有用的知识相关的膜污染机制和它们与陶瓷膜特性的关系将导致从这个程序中，除了商业上可行的陶瓷膜，是高度防污在亚稳油/水乳液处理。 在该计划中开发的高度耐污染的膜将容易扩展到工业规模的低成本陶瓷模块，并应提供显着的好处，在经济和有效性的亚稳油/水乳液分离。这些分离可处理大量的废水，例如来自油井威尔斯的采出水、来自原油洗涤的脱盐器底部、船上舱底和舱清洁废物、车辆洗涤水等。 关键词：陶瓷膜，油/水乳液，抗污染膜 * p：/sbir/yhashimi/9501443 a. doc

*** Higgins 9501443 This Small Business Innovation Research Phase II project is aimed towards the development of improved methods of treating poorly stabilized (metastable) oil/water emulsions via ceramic crossflow filtration with membranes that are highly resistant to fouling and that have relatively low associated costs. The overall objectives of this program include: (a) development of a more comprehensive and fundamental understanding of membrane fouling processes inherent to crossflow filtration of produced waters and similar feed streams, and their dependence on creamic membrane properties, and (b) development of membranes on low-cost ceramic modules that are highly fouling-resistant. Experimental work will encompass modification and optimization of membrane fabrication approaches scouted in Phase I work, long-term crossflow process testing of membranes on both live and simulated oil/water emulsion streams, and thorough physical and chemical characterization of as-fabricated membranes, fouled membranes, and predominant foulant species. It is anticipated that useful knowledge related to membrane fouling mechanisms and their relationship with ceramic membrane characteristics will result from this program, in addition to commercially viable ceramic membranes that are highly fouling-resistant during metastable oil/water emulsion processing. The highly fouling-resistant membranes to be developed in this program will be readily scalable to industrial-scale low-cost ceramic modules, and should provide significant benefits in both the economy and effectiveness of metastable oil/water emulsion separations. These separations ecompass a wide range of very high volume wastewaters such as produced water from oil wells, desalter bottoms from crude oil washing, shipboard bilge and tank cleaning wastes, vehicle washwaters, and others. Keywords: ceramic membranes, oil/water emulsions, fouling-resistant membranes *** p:/sbir/yhashimi/9501443a.doc