In the last decade, there was observed a growing demand for both n-butanol as a potential fuel or fuel additive, and propylene as the only raw material for production of alcohol and other more bulky propylene chemical derivatives with faster growing outputs (polymers, propylene oxide, and acrylic acid). The predictable oilfield depletion and the European Green Deal adoption stimulated interest in alternative processes for n-butanol production, especially those involving bio-based materials. Their commercialization will promote additional market penetration of n-butanol for its application as a basic chemical. We analyze briefly the current status of two most advanced bio-based processes, i.e. ethanol–to-n-butanol and acetone–butanol–ethanol (ABE) fermentation. In the second part of the review, studies of n-butanol and ABE conversion to valuable products are considered with an emphasis on the most perspective catalytic systems and variants of the future processes realization.

中文翻译：

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生物丁醇转化为有价值产品的潜力

在过去十年中，观察到对这两种产品的需求都在增长n-丁醇作为一种潜在的燃料或燃料添加剂，而丙烯是生产酒精和其他体积更大、产量增长更快的丙烯化学衍生物（聚合物、环氧丙烷和丙烯酸）的唯一原料。可预测的油田枯竭和欧洲绿色协议的采用激发了人们对替代工艺的兴趣n-丁醇生产，尤其是那些涉及生物基材料的生产。它们的商业化将促进更多的市场渗透n-丁醇作为基础化学品的应用。我们简要分析了两种最先进的生物基工艺的现状，即乙醇转化为n-丁醇和丙酮-丁醇-乙醇（ABE）发酵。在评论的第二部分，研究n考虑将丁醇和 ABE 转化为有价值的产品，重点是最有前景的催化系统和未来工艺实现的变体。