废糖甜菜的水热转化制备高附加值平台分子。
Hydrothermal Conversion of Spent Sugar Beets into High-Value Platform Molecules.
机构信息
Conversion Technologies of Biobased Resources, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany.
Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy.
出版信息
Molecules. 2020 Aug 27;25(17):3914. doi: 10.3390/molecules25173914.
The growing importance of bio-based products, combined with the desire to decrease the production of wastes, boosts the necessity to use wastes as raw materials for bio-based products. A waste material with a large potential is spent sugar beets, which are mainly used as animal feeds or fertilizers. After hydrothermal treatment, the produced chars exhibited an H/C ratio of 1.2 and a higher heating value of 22.7 MJ/kg, which were similar to that of subbituminous coal and higher than that of lignite. Moreover, the treatment of 25 g/L of glucose and 22 g/L of fructose by heating up to 160 °C led to a possible application of spent sugar beets for the production of 5-hydroxymethylfurfural. In the present study, the maximum concentration of 5-hydroxymethylfurfural was 3.4 g/L after heating up to 200 °C.
生物基产品的重要性日益增加，加上减少废物生产的愿望，促使人们必须将废物用作生物基产品的原料。一种具有巨大潜力的废料是废糖甜菜，它主要用作动物饲料或肥料。经过水热处理后，所产生的炭的 H/C 比为 1.2，高位热值为 22.7 MJ/kg，与亚烟煤相似，高于褐煤。此外，将 25 g/L 的葡萄糖和 22 g/L 的果糖加热至 160°C 进行处理，可能会将废糖甜菜用于生产 5-羟甲基糠醛。在本研究中，加热至 200°C 后，5-羟甲基糠醛的最大浓度为 3.4 g/L。
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