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纤维素作为天然可再生资源,由于其水解糖化技术的可行性和水解产物的重要性而受到人们的广泛关注。目前多种生物和化学技术应用于纤维素水解糖化的研究,其中超、亚临界水是纤维素水解的绿色新型水解技术之一,具有反应快、转化率高等特点。本文比较了纤维素在超、亚临界水中不同的水解机理和产物分布,归纳了反应温度、压力和时间以及催化剂和纤维素结构对超、亚临界水水解反应的影响,并且介绍了超、亚临界水水解技术联用在纤维素水解中的应用。
Cellulose, as a natural renewable resource, has drawn much attention due to its feasibility of hydrolytic saccharification and the importance of hydrolyzate. At present, a variety of biological and chemical technologies are applied to the research of cellulose hydrolyzation and saccharification. Among them, super and sub-critical waters are one of the new green hydrolysis technologies of cellulose hydrolysis, which have the characteristics of fast reaction and high conversion rate. In this paper, the different hydrolysis mechanism and product distribution of cellulose in supercritical water and subcritical water were compared. The effects of reaction temperature, pressure and time, and the structure of catalyst and cellulose on the hydrolysis reaction of supercritical and subcritical water were summarized. Application of Critical Hydrolytic Technology in Cellulose Hydrolysis.