Setting the foundations for a highly selective fractional crystallization scheme to capture carbon dioxide from coal-fired boiler emissions

为从燃煤锅炉排放中捕获二氧化碳的高选择性分级结晶方案奠定基础

• 批准号: 327439-2011
• 负责人: Clarke, Matthew
• 金额: $ 1.53万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=509807
• 关键词: Setting; foundations; highly; selective; fractional

In this application, I am proposing to lay the theoretical and experimental foundations that will eventually lead to a less costly technique to remove CO2 from either the pre- or post-combustion gas stream of a coal-fired power plant. Semi-clathrates are a crystalline material that form when gases such as CO2 are contacted with an aqueous solution of a salt such as Tetra-n-butyl ammonium bromide (TBAB) under the appropriate set of temperature and pressure conditions. Semi-clathrates have many similarities to gas-hydrates. Like gas hydrates, semi-clathrates provide a molecular cage of water molecules that are capable of selectively trapping molecules such as CO2. However, semi-clathrates formed in aqueous solutions of TBAB form at substantially lower pressures, at a given temperature, than gas-hydrates.

在这个应用程序中，我建议奠定理论和实验基础，最终导致一个成本较低的技术，以消除二氧化碳从燃烧前或燃烧后的气体流的燃煤电厂。半笼形物是当气体如CO2与盐如四正丁基溴化铵（TBAB）的水溶液在适当的温度和压力条件下接触时形成的结晶材料。半笼形化合物与天然气水合物有许多相似之处。像气体水合物一样，半笼形物提供了能够选择性地捕获诸如CO2的分子的水分子的分子笼。然而，在TBAB的水溶液中形成的半笼形物在给定温度下在比气体水合物低得多的压力下形成。