BIOMASS GROUP, Nanjing Agricultural University

BIOMASS GROUP, NANJING AGRICULTURAL UNIVERSITY, 南京农业大学生物能源研究组 email: zhfa2020(AT)hotmail.com

Research progress

离子液体处理后的纤维素和小桐子果壳的稀酸水解液用于2,3-丁二醇发酵
2014-01-17为了充分利用原料和获得具有高浓度糖的生物质水解液，微晶纤维素和小桐子果壳在经过离子液体（[BMIM]Cl）处理后再进行稀酸水解。相比于没有经过预处理的微晶纤维素，离子液体处理后的纤维素在水解后，还原糖的得率和浓度提高了139%, 水溶性产物的得率提高了128%。相比于只经过热水预处理的小桐子果壳，离子液体处理后的小桐子果壳在水解后，还原糖得率提高了80%，还原糖浓度提高了76%，水溶性产物的得率提高了70%。此外，离子液...

稀酸和离子液体联合预处理促进甘蔗渣的水解
2014-01-17半纤维素的损失以及不能有效地破坏纤维素的结晶结构，是木质纤维素水解液中糖得率低以及水解成本高的主要原因。稀酸水解可以有效地将半纤维素水解成糖，而这些糖可以有效地被细菌利用生成2,3-丁二醇(36.1%)。离子液体处理可以有效地破坏纤维素的结晶结构，从而促进后期的酶解。经过稀酸和离子液体联合预处理后，甘蔗渣中纤维素的水解率（95.5%）明显高于只经过稀酸或离子液体处理的材料。这种策略可以高效地从半纤维素和纤维素...

Production of 2,3-butanediol from cellulose and Jatropha hulls after ionic li...
2014-01-17To make full utilization of raw material and achieve high concentration of sugars in the hydrolysate of biomass, microcrystalline cellulose andJatropha hullswere pretreated by IL1-butyl-3-methylimidazoliuma chloride ([BMIM]Cl) before their subsequent dilute sulfuric acid hydrolysis.Compared with original cellulose, after IL-pretreatment, both the yield and concentration of reducing-sugars incre...

Combination of dilute acid and ionic liquid pretreatments of sugarcane bagass...
2014-01-17Loss of hemicellulose and inability to effectively decrystallize cellulose, result in low yield and high cost of sugars derived from biomass. Dilute sulfuric acid pretreatment could easily remove most of hemicellulose as sugars.The sugars were successfully used for 2,3-butanediol production with relative high yield (36.1%). Then, the remained solid residue after acid-pretreatment was further pr...

微波辅助酸水解棕榈果实残渣生产甘露糖
2013-12-18随着化石燃料的逐渐枯竭与能源需求的不断增加，人们越来越认识到寻求能源替代品的迫切性，所以国内外研究者纷纷开展农业废弃物转化成高附加值产品的研究。马来西亚是种植棕榈油料植物最多的国家之一，随着棕榈油的广泛开发利用，棕榈油厂每年生产大约2.39万吨棕榈果实残渣废弃物，经过研究表明其残渣中不仅含有蛋白质，而且其水解产物含有甘露糖，葡萄糖和半乳糖等六碳糖，为微生物发酵生产高附加值化学品提供了较为理想的碳源...

超声能在生物燃料技术中的应用
2013-12-18通过热化学和生物化学方法将绿色廉价、可再生的生物质原料转化为燃料是解决未来能源困境的重要途径。使用超声波能量实施过程强化，可以在室温条件下破坏顽抗的生物质结构，便利复杂化学组分的分离，将生物质的催化反应由非均相转变为均相或者准均相，从而在本质上改善制约生物质转化效率和选择性的因素。超声波具有特殊的物理特性，可以通过空化作用积累超声能量，然后通过空化气泡在微秒数量级的瞬间崩溃急剧释放能量。释放的...

High Yield Production of Sugars from Deproteinated Palm Kernel Cake under Mic...
2013-12-18Climate change together with the increased concern for the energy security has imparted a trend shifting on the use of fossil fuels to renewable energy sources. Worldwide attention has been focused on the transforming of agricultural waste into high value-added products. Malaysia, one of the global leading palm oil producers, seeking a next catalyst for sustaining economic growth since the palm...

Application of ultrasonic energy in biofuels
2013-12-18The conversion of green, cheap and renewable biomass materials into biofuels through thermochemical and biochemical methods is one of the key route to provide sustainable energy in future. The introduction of ultrasonic energy in biomass conversion could destroy the recalcitrance structure of lignocellulosic biomass at room temperature, facilitate the separation of complicated composition in ra...

Two students supervised by Professor Zhen Fang graduated from Biomass group
2013-11-07English Version:On May 21st, 2013, two students supervised by Professor Zhen Fang from Biomass group, Mr. Baojin Xue and Mr. Xiaofei Tian, successfully defended their graduation oral examinations in Kunming Brach of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences.The graduation oral examinations was held from 1:30 pm to 5:00 pm. Professor Fang, other staffs and students of ...

微波辅助制备生物柴油及副产物甘油水热气化制氢进展
2013-11-07生物柴油作为一种环境友好的可再生能源，近年来受到人们的持续关注和广泛研究，而如何提高生物柴油生产效率一直是研究的热点问题。在生物柴油产业迅速发展的同时，副产物甘油也随之大量产生，如何利用副产物甘油制备高附加值产品氢气已成为新的关注点。氢气可作为清洁能源使用，而且可以用于燃料电池领域，应用前景非常广阔。中国科学院西双版纳植物园生物能源组研究人员以固体硅酸钠为催化剂，在微波辅助技术下用于植物油与甲...

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