甲醇制汽油工艺(methanol to gasoline,MTG)对于保证我国能源安全和推动经济发展具有重要的意义,而甲醇制汽油技术的关键是催化剂的开发。本文综述了国内外甲醇制汽油催化剂的研究进展,主要介绍了微米ZSM-5分子筛、纳米ZSM-5分子筛以及...甲醇制汽油工艺(methanol to gasoline,MTG)对于保证我国能源安全和推动经济发展具有重要的意义,而甲醇制汽油技术的关键是催化剂的开发。本文综述了国内外甲醇制汽油催化剂的研究进展,主要介绍了微米ZSM-5分子筛、纳米ZSM-5分子筛以及复合分子筛甲醇制汽油催化剂的研究现状,着重探讨了不同改性方法对分子筛催化剂催化甲醇制汽油反应性能的影响,改性方法主要包括金属改性、碱处理改性、水热处理改性等。同时指出纳米ZSM-5分子筛具有优于微米级ZSM-5分子筛的独特孔道结构和酸性分布,用于甲醇制汽油工艺具有更更高的汽油收率和稳定性。另外,开发高选择性和高稳定性的催化剂,同时开发相应的配套工艺,解决MTG反应中反应热难以控制的难题是未来甲醇制汽油的发展方向。展开更多
The effect of HF treatment on etherification activities of ZSM-5 zeolite was investigated.Appearance,crystal structure,pore structure,acid quality of treated zeolite was charactered.It was found that catalyst treated ...The effect of HF treatment on etherification activities of ZSM-5 zeolite was investigated.Appearance,crystal structure,pore structure,acid quality of treated zeolite was charactered.It was found that catalyst treated by HF remained typical MFI structure,but grain broken;pore volume and average pore diameter of treated zeolite increased obviously;Brnsted acid quantity decreased;etherification activities of fluorinate treatment of ZSM-5 zeolite increased obviously.展开更多
文摘甲醇制汽油工艺(methanol to gasoline,MTG)对于保证我国能源安全和推动经济发展具有重要的意义,而甲醇制汽油技术的关键是催化剂的开发。本文综述了国内外甲醇制汽油催化剂的研究进展,主要介绍了微米ZSM-5分子筛、纳米ZSM-5分子筛以及复合分子筛甲醇制汽油催化剂的研究现状,着重探讨了不同改性方法对分子筛催化剂催化甲醇制汽油反应性能的影响,改性方法主要包括金属改性、碱处理改性、水热处理改性等。同时指出纳米ZSM-5分子筛具有优于微米级ZSM-5分子筛的独特孔道结构和酸性分布,用于甲醇制汽油工艺具有更更高的汽油收率和稳定性。另外,开发高选择性和高稳定性的催化剂,同时开发相应的配套工艺,解决MTG反应中反应热难以控制的难题是未来甲醇制汽油的发展方向。
文摘The effect of HF treatment on etherification activities of ZSM-5 zeolite was investigated.Appearance,crystal structure,pore structure,acid quality of treated zeolite was charactered.It was found that catalyst treated by HF remained typical MFI structure,but grain broken;pore volume and average pore diameter of treated zeolite increased obviously;Brnsted acid quantity decreased;etherification activities of fluorinate treatment of ZSM-5 zeolite increased obviously.
