根据德国有关方面的研究和预测，今后几十年由生物质合成的液体动力燃料（简称BTL—Biomass to Liquids）。也被称为第一代生物燃料，将会迅速发展，德国可生长原料联合会估计，在2020年德国的生物合成燃料将满足25％的燃料需求，在很...根据德国有关方面的研究和预测，今后几十年由生物质合成的液体动力燃料（简称BTL—Biomass to Liquids）。也被称为第一代生物燃料，将会迅速发展，德国可生长原料联合会估计，在2020年德国的生物合成燃料将满足25％的燃料需求，在很多方面优于目前的生物柴油并有替代生物柴油的趋势，据大众汽车公司预测：到2015年第二代生物燃料一生物合成燃料和生物甲烷将全面取代第一代生物燃料一生物柴油和生物乙醇。30年后，世界上的动力燃料23％将用生物质生产，其中主要是第二代生物燃料一生物合成液体燃料。第二代生物燃料是一种最重要的可再生燃料，有非常巨大的发展前景，将成为新一代的替代能源。展开更多
The simplest zeolite,sodalite(SOD),was synthesized iononic liquid-thermally from aqueous basic aluminosilicate precursor gels in an imidazolium-based ionic liquid,with 1-ethyl-3-methylimidazolium bromide as solvent.Th...The simplest zeolite,sodalite(SOD),was synthesized iononic liquid-thermally from aqueous basic aluminosilicate precursor gels in an imidazolium-based ionic liquid,with 1-ethyl-3-methylimidazolium bromide as solvent.The synthesis was carried out at a temperature between 50 and 150 ℃ at an ambient pressure.The effects of mass ratios of aqueous gel to ionic liquid,molar ratios of n(Si)/n(Al) in gel and crystallization temperature and time on the crystallization were investigated.The morphology and structure of the as-prepared products were characterized by X-ray diffraction and scanning electron microscopy.The results show that a mixture of sodalite and zeolite X was initially precipitated in ionic liquid at a ratio 1∶3 of aqueous gel to ionic liquid,and finally transformed in to pure sodalite as the crystallisation time is prolonged,and the crystallinity of sodalite increased with the increase of n(Si)/n(Al) from 1.1 to 10.Increasing the ratio of aqueous gel to ionic liquid,zeolite X was favorable to crystallize,and it became the only product under the hydrothermal condition.展开更多
文摘根据德国有关方面的研究和预测，今后几十年由生物质合成的液体动力燃料（简称BTL—Biomass to Liquids）。也被称为第一代生物燃料，将会迅速发展，德国可生长原料联合会估计，在2020年德国的生物合成燃料将满足25％的燃料需求，在很多方面优于目前的生物柴油并有替代生物柴油的趋势，据大众汽车公司预测：到2015年第二代生物燃料一生物合成燃料和生物甲烷将全面取代第一代生物燃料一生物柴油和生物乙醇。30年后，世界上的动力燃料23％将用生物质生产，其中主要是第二代生物燃料一生物合成液体燃料。第二代生物燃料是一种最重要的可再生燃料，有非常巨大的发展前景，将成为新一代的替代能源。
文摘The simplest zeolite,sodalite(SOD),was synthesized iononic liquid-thermally from aqueous basic aluminosilicate precursor gels in an imidazolium-based ionic liquid,with 1-ethyl-3-methylimidazolium bromide as solvent.The synthesis was carried out at a temperature between 50 and 150 ℃ at an ambient pressure.The effects of mass ratios of aqueous gel to ionic liquid,molar ratios of n(Si)/n(Al) in gel and crystallization temperature and time on the crystallization were investigated.The morphology and structure of the as-prepared products were characterized by X-ray diffraction and scanning electron microscopy.The results show that a mixture of sodalite and zeolite X was initially precipitated in ionic liquid at a ratio 1∶3 of aqueous gel to ionic liquid,and finally transformed in to pure sodalite as the crystallisation time is prolonged,and the crystallinity of sodalite increased with the increase of n(Si)/n(Al) from 1.1 to 10.Increasing the ratio of aqueous gel to ionic liquid,zeolite X was favorable to crystallize,and it became the only product under the hydrothermal condition.
