Novel Zeolite-Polymer-Ceramic Composite Membranes for Volatile Organic Compound Removal by Vapor Permeation

通过蒸汽渗透去除挥发性有机化合物的新型沸石-聚合物-陶瓷复合膜

• 批准号: 9461628
• 负责人: Richard Higgins
• 金额: $ 7.5万
• 依托单位: CeraMem Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9461628&HistoricalAwards=false
• 关键词: Novel; Zeolite; Polymer; Ceramic; Composite

DMI-9461628 Higgins Vapor permeation holds much promise for becoming a highly efficient means of preventing VOC emissions that are now generated by a variety of stationary resources. Limitations of current vapor permeation (VP) processes are low selectivity and low upper temperature constraints (ca. 100 to 125 degrees centigrade) for polymeric VP membranes. In most cases, these result in the need to employ large membrane areas, multi-stage operation and the cooling of compressed air feed. Wider application of the technology would be possible if inexpensive VP modules with highly selective membranes operable at appreciably higher temperature were available. This research addresses development of such devices by use of novel zeolite-filled polymeric membranes in combination with low-cost, highly compact ceramic ultrfiltration modules as VP membrane supports. In this Phase I program, novel zeolite-filled membranes will be developed. Highselectivity of these membranes for removal of priority AVOC's from air will be demonstrated. an innovative method will be used to apply then, defect-free vapor permeation membranes tot he ceramic supports to from zeolite-polymer-ceramic composite membranes. These vapor permeation membranes will be tested at temperatures ranging from 100 to 200 degrees centigrade for removal of VOCs I synthetic gas streams at a laboratory scale. The sorption and diffusion properties of both pure zeolite and zeolite-filled membranes will be determined. In Phase II work, membrane fabrication procedure would be optimized to prepare very then membranes, larger size VP modules would be produced, and operation up to 300 degrees centigrade would be demonstrated.

DMI-9461628 Higgins Vapor Pereation具有很大的希望，可以成为预防VOC排放的一种高效手段，这些方法现在由各种固定资源产生。 当前蒸气渗透过程（VP）过程的局限性是低选择性和低温限制（约100至125摄氏度）的聚合物VP膜。 在大多数情况下，这些导致需要采用大型膜区域，多阶段操作以及压缩空气饲料的冷却。 如果可以在高度较高的温度下可操作高度选择性的膜的廉价副总裁模块，则该技术的应用将成为可能。 这项研究通过使用新型的沸石填充的聚合物膜以及低成本，高度紧凑的陶瓷超滤模块来解决此类设备的开发。 在此I阶段计划中，将开发出新颖的充满沸石的膜。将证明这些膜从空气中取出优先avoc的高选择性。 当时将使用一种创新的方法来应用陶瓷的无缺陷蒸气渗透膜，从沸石 - 聚合物 - 陶瓷复合膜上提供。 这些蒸气渗透膜将在从100至200度的温度下进行测试，以取消VOC I在实验室尺度上的合成气流。 将确定纯沸石和充满沸石的膜的吸附和扩散特性。 在第二阶段的工作中，将优化膜制造程序以准备膜，将产生较大的VP模块，并且将显示高达300摄氏度的操作。