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Overcoming catalyst deactivation during the continuous conversion of sugars to chemicals: maximising the performance of Sn-Beta with a little drop of water†
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2017-11-28 00:00:00 , DOI: 10.1039/c7re00180k Daniele Padovan 1, 2, 3, 4 , Søren Tolborg 5, 6, 7, 8 , Luca Botti 1, 2, 3, 4 , Esben Taarning 5, 6, 7, 8 , Irantzu Sádaba 5, 6, 7, 8 , Ceri Hammond 1, 2, 3, 4
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2017-11-28 00:00:00 , DOI: 10.1039/c7re00180k Daniele Padovan 1, 2, 3, 4 , Søren Tolborg 5, 6, 7, 8 , Luca Botti 1, 2, 3, 4 , Esben Taarning 5, 6, 7, 8 , Irantzu Sádaba 5, 6, 7, 8 , Ceri Hammond 1, 2, 3, 4
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Producing chemicals from renewable resources represents one of the key challenges in chemical science. Whilst catalytic methods for converting renewables to chemicals offer several advantages over biological approaches, the solid catalysts developed to date are typically plagued by rapid rates of deactivation, prohibiting their greater exploitation. Here, we demonstrate, for the first time, that a Sn-containing zeolite, Sn-Beta, is capable of continuously converting saccharide solutions to value added chemicals with high levels of activity, selectivity and stability. For both the isomerisation of glucose to fructose, and the conversion of fructose to alkyl lactates, we observe that the addition of up to 10% of water to the methanol/sugar reaction feed increases reactivity by a factor of 2.5, and catalyst stability by one order of magnitude. Continuous operation for up to 1366 h (57 days) is demonstrated, with only limited loss of activity being observed over this period of time. Post-reaction characterisation indicates that the addition of water influences several elements of the catalytic system, which cooperatively result in improved performance.
中文翻译：
在糖类连续转化为化学药品的过程中克服催化剂失活：通过少量滴水使Sn-Beta的性能最大化†
用可再生资源生产化学药品是化学科学领域的主要挑战之一。尽管将可再生能源转化为化学物质的催化方法相对于生物方法具有若干优势，但迄今为止开发的固体催化剂通常会因快速失活的速度而受其困扰，从而阻碍了它们的进一步开发。在这里，我们首次证明了含锡沸石Sn-Beta能够将糖溶液连续转化为具有高活性，选择性和稳定性的增值化学品。对于葡萄糖到果糖的异构化以及果糖到乳酸烷基酯的转化，我们观察到向甲醇/糖反应进料中添加多达10％的水，反应活性提高了2.5倍，催化剂稳定性提高了1倍。数量级。证明可以连续运行长达1366小时（57天），在这段时间内只能观察到有限的活动损失。反应后表征表明，水的添加会影响催化系统的多个元素，从而共同提高性能。
更新日期：2017-11-28
中文翻译：
在糖类连续转化为化学药品的过程中克服催化剂失活：通过少量滴水使Sn-Beta的性能最大化†
用可再生资源生产化学药品是化学科学领域的主要挑战之一。尽管将可再生能源转化为化学物质的催化方法相对于生物方法具有若干优势，但迄今为止开发的固体催化剂通常会因快速失活的速度而受其困扰，从而阻碍了它们的进一步开发。在这里，我们首次证明了含锡沸石Sn-Beta能够将糖溶液连续转化为具有高活性，选择性和稳定性的增值化学品。对于葡萄糖到果糖的异构化以及果糖到乳酸烷基酯的转化，我们观察到向甲醇/糖反应进料中添加多达10％的水，反应活性提高了2.5倍，催化剂稳定性提高了1倍。数量级。证明可以连续运行长达1366小时（57天），在这段时间内只能观察到有限的活动损失。反应后表征表明，水的添加会影响催化系统的多个元素，从而共同提高性能。
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