Membrane screening and development for CO2 absorption in a membrane contactor

膜接触器中 CO2 吸收的膜筛选和开发

• 批准号: 327446-2006
• 负责人: DeMontigny, David
• 金额: $ 1.49万
• 依托单位: University of Regina
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=397774
• 关键词: Membrane; screening; development; CO2; absorption

The International Test Centre for CO2 Capture (ITC) at the University of Regina conducts research to develop technology that can capture carbon dioxide (CO2) from industrial sources economically.  Since CO2 is a greenhouse gas, this is an important global issue that needs further research. Traditionally, CO2 is absorbed from flues gas using packed columns.  These columns tend to be very large and expensive to operate.  Recently, membrane contactors have emerged as a promising technology.  Research at the ITC has shown that membrane contactors can perform better than packed columns.  Therefore, we feel that this relatively new technology has the potential to make a significant contribution in the area of gas treating.  Smaller, more efficient membrane contactors could one day replace the large and expensive packed columns that are currently used in industry. In order for membrane contactors to be successful, research is needed to address membrane stability.  Currently, membranes are wetted by the absorption solvents, leading to a loss of performance.  This research program is focused on thee tasks in an effort to develop affordable membranes that resist wetting.  In Task 1 we are analyzing various membrane-solvent relationships to identify system characteristics that optimize performance.  Task 2 is devoted to manufacturing flat and hollow fibre membranes that possess these desirable characteristics.  These membranes are then tested in membrane contactors in Task 3 to assess the overall performance of the system, and compare the CO2 capture results with existing packed column technology.  The long-term goal of this work is to develop a pilot-plant scale membrane contactor that can be tested in an industrial setting.

里贾纳大学的国际CO2捕集试验中心（ITC）开展研究，开发能够经济地从工业源捕集二氧化碳（CO2）的技术。CO2是温室气体，因此是需要进一步研究的重要全球课题。传统上，使用填充柱从烟道气中吸收CO2。这些柱往往非常大且操作昂贵。最近，膜接触器已成为一种有前途的技术。ITC的研究表明，膜接触器的性能优于填充柱。因此，我们认为这种相对较新的技术有潜力在气体处理领域做出重大贡献。更有效的膜接触器有一天可以取代目前工业中使用的大而昂贵的填充柱。为了使膜接触器获得成功，需要对膜的稳定性进行研究。目前，膜被吸收溶剂润湿，这项研究计划的重点是在努力开发负担得起的抗润湿膜三个任务。在任务1中，我们正在分析各种膜-溶剂关系，以确定优化性能的系统特性。任务2致力于制造具有这些理想特性的扁平和中空纤维膜。然后在任务3中在膜接触器中测试这些膜，评估系统的整体性能，并将CO2捕集结果与现有的填料塔技术进行比较。这项工作的长期目标是开发一种中试规模的膜接触器，可以在工业环境中进行测试。