Development of Adsorption Separation Processes for Production of Renewable Energy Sources

可再生能源生产吸附分离工艺的开发

• 批准号: 41678-2013
• 负责人: Tezel, Handan
• 金额: $ 2.11万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638005
• 关键词: Development; Adsorption; Separation; Processes; Production

The rising cost of crude oil, combined with the depletion of the resources for energy, political instability in oil producing countries, and the desire to reduce the current dependence on imported oil are some of the reasons that have motivated different waves of interest for renewable and sustainable fuels. The production of sustainable and renewable fuels as a replacement for petroleum-based fuels is the subject of unprecedented research that is greatly supported by governments. In this project, the focus will be on the production of natural gas and bio-butanol from renewable sources, as follows:Natural gas is mainly composed of methane (CH4) and can be obtained from landfill gas, which is composed of CH4 and CO2 gases at almost in equimolar concentrations with a bit of N2 gas and moisture. CH4 needs to be separated from these gases and purified before it can be used as natural gas. Therefore, the separation of CH4, CO2 and N2 gases under dry conditions, as well as humid conditions are going to be the focus of this proposed study. Bio-butanol is the next generation of bio-fuels that can be obtained from the fermentation of agricultural by-products and is now attracting as much interest as ethanol and biodiesel as a renewable bio-fuel. However, the production of bio-butanol is facing important engineering challenges. The main one is the low final butanol concentration at the end of fermentation due to butanol toxicity for microorganisms used to convert sugars into butanol. This low concentration has a direct impact on the efficiency and economics of bio-butanol recovery. It needs to be separated and further purified so that it can be sold commercially. In this project, separation and recovery of bio-butanol both in the liquid and vapour phases will be investigated.

原油价格的上涨，加上能源资源的枯竭，石油生产国的政治不稳定，以及减少目前对进口石油依赖的愿望，是激发对可再生和可持续燃料的不同兴趣的一些原因。生产可持续和可再生燃料作为石油基燃料的替代品是前所未有的研究课题，得到了各国政府的大力支持。在这个项目中，重点将放在可再生能源生产天然气和生物丁醇上，如下：天然气主要由甲烷（CH4）组成，可以从垃圾填埋气中获得，垃圾填埋气由CH4和二氧化碳气体组成，几乎是等摩尔浓度，还有一点氮气和水分。CH4需要从这些气体中分离出来并提纯，然后才能用作天然气。因此，CH4、CO2和N2气体在干燥和潮湿条件下的分离将是本研究的重点。生物丁醇是可以从农业副产品发酵中获得的下一代生物燃料，作为一种可再生生物燃料，目前正引起与乙醇和生物柴油一样多的关注。然而，生物丁醇的生产面临着重大的工程挑战。主要原因是由于丁醇对用于将糖转化为丁醇的微生物具有毒性，因此发酵结束时的最终丁醇浓度较低。这种低浓度直接影响生物丁醇回收的效率和经济性。它需要被分离和进一步纯化，这样才能在商业上出售。本项目将研究生物丁醇在液相和气相的分离和回收。