| 稻壳资源化新工艺的研究 |
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| 引用本文： | 吕秀阳,夏文莉,刘田春,Sakoda Akiyoshi,Suzuki Motoyuki.稻壳资源化新工艺的研究[J].农业工程学报,2001,17(2):132-135. |
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| 作者姓名： | 吕秀阳 夏文莉 刘田春 Sakoda Akiyoshi Suzuki Motoyuki |
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| 作者单位： | 1. 浙江大学,
2. 东京大学, |
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| 基金项目： | 浙江省自然科学基金（项目编号：J99002）和浙江省留学回国基金会科研启动费项目 |
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| 摘 要： | 根据纤维素、半纤维素、木质素在高温高压水中分解速度相差很大的特点，提出了一条稻壳资源化的新工艺，以便减少废弃物、最大限度地得到糖类化合物。新工艺主要包括连续水蒸汽蒸煮爆碎处理、连续近临界水处理和燃烧三步。研究了连续近临界水处理过程中温度和停留时间对液相分解产物的收率和残渣组成的影响，并得到了较优的操作条件。通过对新工艺中固形物组成变化的研究得知：水蒸汽蒸煮爆碎处理过程主要分解半纤维素，而连续近临界水处理同时水解纤维素和含硅化合物。新工艺可将约80%的碳源转化为水溶性物质，其中多聚糖和单糖的收率可达40%（wt）以上。新工艺为稻壳的全面综合利用提供了一条新途径。
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| 关 键 词： | 稻壳 资源化 新工艺 近临界水 水蒸汽蒸煮爆碎 |
| 文章编号： | 1002-6819(2001)02-0132-04 |
| 收稿时间： | 9/4/2000 12:00:00 AM |
| 修稿时间： | 2000年9月4日 |
A New Process to Resource Rice Hull |
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| Lü Xiuyang,XIA Wenli,Liu Tianchun,SAKODA Akiyoshi,SUZUKI Motoyuki.A New Process to Resource Rice Hull[J].Transactions of the Chinese Society of Agricultural Engineering,2001,17(2):132-135. |
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| Authors: | Lü Xiuyang XIA Wenli Liu Tianchun SAKODA Akiyoshi SUZUKI Motoyuki |
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| Abstract: | A new process to resource rice hull was proposed for minimizing the wastes and getting the maximum yield of saccharide. It included three steps, i.e., continuous steam explosion step, continuous near-critical water reactions step and combustion step. The influences of temperature and residence time on the yields of water soluble products and the contents of different components in the solid residue were studied. With the optimized conditions, about 80% of the carbon in the rice hull could be converted into aqueous phase products in which the yield of oligomers and monose could be over 40%(wt). From the analyses of different components in the solid residues, hemi-cellulose was decomposed mainly in the steam explosion step while cellulose was decomposed in the near-critical water reactions step. |
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| Keywords: | rice hull resource new process near-critical water steam explosion |
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