Promoting Hydrolytic Hydrogenation of Cellulose to Sugar Alcohols by Mixed Ball Milling of Cellulose and Solid Acid Catalyst
Promoting Hydrolytic Hydrogenation of Cellulose to Sugar Alcohols by Mixed Ball Milling of Cellulose and Solid Acid Catalyst
复制标题
纤维素与固体酸催化剂混合球磨促进纤维素水解加氢制糖醇
DOI：
10.1021/ef500717p
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发表时间：
2014-09-01
期刊：
影响因子：
5.3
通讯作者：
Li, Yuping
中科院分区：
文献类型：
--
作者：
Liao, Yuhe;Liu, Qiying;Li, Yuping
提高纤维素与固体催化剂之间的接触或相互作用是纤维素高效催化转化的一个重要方面。为此，提出了纤维素和固体催化剂的混合球磨法来实现这一目标，并通过在固体酸和5 wt % Ru/C的水中水解纤维素加氢制糖醇（生物汽油的平台化合物）来测量促进效果。研究了球磨方式、时间和反应参数对球磨效果的影响。并对纤维素和固体酸催化剂处理前后的性能进行了分析。以无定形磷酸锆和Ru/C为原料（混合球磨时间为2 h），在463 K下，糖醇的收率可达90.3%。在相同反应条件下，混合球磨时间为2 h的糖醇高产率比单球磨时间为24 h的糖醇高产率快12倍。这是由于纤维素与催化剂之间的接触增强，从而促进纤维素沉积。
Enhancing the contact or interaction between cellulose and solid catalyst is a significant aspect in its efficient catalytic conversion. Herein, mixed ball milling of cellulose and solid catalyst was presented to achieve this goal, and the promotion effect was measured by hydrolytic hydrogenation of cellulose to sugar alcohols (the platform compounds for biogasoline) with solid acid and commercial 5 wt % Ru/C in water. The effects of ball-milling modes, time, and reaction parameters were studied. The properties of cellulose and solid acid catalyst before and after treatment were also analyzed. The yield of sugar alcohols reached 90.3% at 463 K with amorphous zirconium phosphate and Ru/C (mixed ball-milling time of 2 h). This high yield of sugar alcohols achieved in the mixed ball-milling time of 2 h was 12 times faster than that by the single ball milling of 24 h under the same reaction conditions. It is ascribed to the enhanced contact between cellulose and catalyst, resulting in promoting cellulose depo...