Hybrid approaches for capture and catalytic recycling of carbon dioxide

二氧化碳被认为对全球气候变化有重大贡献。大约三分之一的人为二氧化碳排放来自用于能源生产的化石燃料。此外，各种工业过程(炼油厂、水泥厂、钢铁行业和铝生产)每年向大气中排放大量二氧化碳。在加拿大，CEPA(加拿大环境保护法案)是推动企业减少温室气体排放的立法机构。二氧化碳捕集和封存的概念最近引起了人们对二氧化碳减排的极大兴趣。二氧化碳捕集的目的是将纯气体从不同的气体混合物中分离出来，以便产生一种可供封存或进一步使用的浓缩流。通过化学循环实现二氧化碳封存的一种非常有趣和有效的替代方法是将二氧化碳转化为有价值的产品，如二甲醚(DME)。

CO2 is considered to have a major contribution to the global climate change. About one third of all anthropogenic CO2 emissions come from fossil fuels used for energy generation. In addition, various industrial processes (oil refineries, cement works, iron & steel sector and aluminum production) annually emit huge amounts of CO2 into the atmosphere. In Canada, CEPA (Canadian Environmental Protection Act) is the legislative authority that pushes the companies to reduce their greenhouse gas production. The concept of CO2 capture and sequestration has recently attracted a considerable interest in the CO2 emissions reduction. The aim of CO2 capture is to separate the pure gas from different gaseous mixtures in order to produce a concentrated stream ready for sequestration or further use. A very interesting and efficient alternative to CO2 sequestration by chemical recycling is the carbon dioxide conversion into valuable products like dimethyl ether (DME).