Optimization ofsaccharification yield of wood-cellulosic material for bio-ethanol production through mechanical treatment

通过机械处理优化用于生产生物乙醇的木质纤维素材料的糖化产率

• 批准号: 21580307
• 负责人: SHOJI Koichi
• 金额: $ 3.08万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21580307/
• 关键词: 微破砕; 竹; 糖化効率; 所要エネルギ; 粒径; 回転篩; フレール刃; 軸回転数; 糖化率

A prototype of a fine-crusher (grinder) of wood-cellulosic materials has been constructed with flail-knives and a rotary sieve rotating independently of each other. Pieces of bamboo in batches were fed into the fine-crusher, the crushed material was then treated with pressurized hot water (sub-critical water) to modify its structure and then hydrolyzed into glucose with an enzyme. With an increase in the diameter of the pores of the rotary sieve, the specific energy requirement for fine-crushing decreased remarkably from 500 to 250 kJ/kg, whilethe estimated glucose yield at 200°C decreased negligibly from 38% to 35%. The best rotational speed of the rotor and the diameter of the sieve pores were 1500 rpm and 4 mm, respectively. Additionally, sieve pore diameters of 6 mm and 8 mm was tested to reduce the specific energy requirement, and the acidic hydrolysis showed that such large pore significantly decreased the glucose yield due to too large material produced.A trial at a rotor speed of 2400 rpm showed that finer material was produced and the netenergy requirement did not increase, which implied that further development of the fine-crusher was needed to increase glucose yield at the reduced energy requirement. The results of the additional experiments were partly supported by high-speed video movies taken in the fine-crusher.

木质纤维素材料细碎机（研磨机）的原型由连枷刀和彼此独立旋转的旋转筛构成。将竹片分批送入细破碎机，破碎后的材料用加压热水（亚临界水）处理以改变其结构，然后用酶水解成葡萄糖。随着旋转筛孔径的增加，细粉碎所需的具体能量从500 kJ/kg显着降低至250 kJ/kg，而200℃下的估计葡萄糖产率从38%下降至35%，可忽略不计。转子的最佳转速和筛孔直径分别为1500rpm和4mm。此外，还测试了6毫米和8毫米筛孔直径以降低比能量需求，酸水解表明，如此大的孔径会由于产生的物料太大而显着降低葡萄糖产量。在2400 rpm的转子速度下进行的试验表明，产生了更细的物料，并且净能量需求没有增加，这意味着需要进一步开发精细破碎机，以在降低的能量下提高葡萄糖产量 要求。额外实验的结果部分得到了细碎机中拍摄的高速视频的支持。

项目成果

Optimizing Energy Requirement for Fine-Crushing Wood-Cellulosic Material and its Glucose Yield for Bioethanol Production

优化精细粉碎木质纤维素材料的能量需求及其用于生物乙醇生产的葡萄糖产量

• 发表时间: 2011
• 期刊: ASABE Paper
• 作者: Shoji;他3名
• 通讯作者: 他3名

Fine-crushing of bamboo for its hydrolysis for bioethanol production - Effect of pore diameter of rotary sieve on glucose yield and specific energy requirement -

竹子的精细粉碎用于水解生产生物乙醇 - 旋转筛孔径对葡萄糖产量和比能量需求的影响 -

• 发表时间: 2011
• 期刊: Proceedings of CIGR 2011
• 作者: Shoji;K.;Tanaka;D.;Horio;H.
• 通讯作者: H.

Optimizing energy requirement 糖化効率(%)熱水処理200℃図3・図7より推定熱水処理なし所要比エネルギ(kJ/kg)回転篩孔径φフレール刃受刃フレール刃受刃受刃↑透明カバー 打抜網(b) (c) (a) for fine-crushing wood-cellulosic material and its glucose yield for bioethanol production

优化能量需求 糖化效率（%） 热水处理 200℃ 由图 3、图 7 推算 不进行热水处理所需比能量（kJ/kg） 旋转筛孔径 φ 连枷刀接收刀 连枷刀接收刀 ↑ 透明盖 钻孔（b） ) (c) (a) 用于精细粉碎木质纤维素材料及其用于生物乙醇生产的葡萄糖产量

• 发表时间: 2011
• 期刊: ASABE Paper
• 作者: Shoji;K.;Tanaka;D.;Arai;K.;Horio;H.
• 通讯作者: H.

木質系バイオエタノール生産の効率化をめざした微破砕機の研究

提高木质生物乙醇生产效率的精细破碎机研究

• 发表时间: 2012
• 期刊: 農業機械学会関西支部報
• 作者: 大畑亮輔;山梨竜一;星岳彦;Takehiko Hoshi;Takehiko Hoshi;星岳彦・林泰正;古在豊樹・星岳彦;北野智広,川村恒夫,庄司浩一;北野智広;庄司浩一,川村恒夫,荒井圭介
• 通讯作者: 庄司浩一,川村恒夫,荒井圭介

Optimizing eergy requirement for fine-crushing wood-cellulosic material and its glucose yield for bioethanol production

优化精细粉碎木质纤维素材料的能量需求及其用于生物乙醇生产的葡萄糖产量

• 发表时间: 2011
• 期刊: ASABE Paper
• 作者: Shoji;K.
• 通讯作者: K.