Optimization of the organosolv pretreatment of yellow poplar for bioethanol production by response surface methodology

被引：0
作者：
Kim, Ho-Yong [1 ]
Hong, Chang-Young [2 ]
Kim, Seon-Hong [2 ]
Yeo, Hwanmyeong [2 ,3 ]
Choi, In-Gyu [2 ,3 ]
机构：
[1] Department of Forest Biomaterials, North Carolina State University, Raleigh, 27695, NC
[2] Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, 151-921, Seoul
[3] Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, 151-921, Seoul
来源：
Journal of the Korean Wood Science and Technology | 2015年 / 43卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
Organosolv pretreatment; Overall ethanol yield; Response surface methodology; Simultaneous saccharification and fermentation; Yellow poplar;
D O I：
10.5658/WOOD.2015.43.5.600
中图分类号：
学科分类号：
摘要：
We investigated the optimization of the organosolv pretreatment of yellow poplar for bioethanol production. Response surface methodology was used to determine the optimal conditions of three independent variables (reaction temperature, reaction time, and sulfuric acid (SA) concentration). Reaction temperature is the most significant variable in the degradation of xylan and lignin in the presence of an acid catalyst, and ethanol production increased with a decrease in the lignin content. The highest ethanol concentration (42.80 g/ℓ) and theoretical ethanol yield (98.76%) were obtained at 152°C (2.5 bar) with 1.6% SA for 16 min. However, because of excessive degradation of the raw material, the overall ethanol yield was less than under other pretreatment conditions which has approximately 50% of WIS recovery rate after pretreatment. The optimal conditions for the maximum overall ethanol yield (146°C with 1.22% SA for 15.9 min) were determined with a predicted yield of 17.11%, and the experimental values were very close (17.15%). Therefore, the quadratic model is reliable.
引用
收藏
页码：600 / 612
页数：12
相关论文
共 28 条
[1]  
Alvira P., Tomas-Pejo E., Ballesteros M., Negro M., Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review, Bioresource Technology, 101, 13, pp. 4851-4861, (2010)
[2]  
Cara C., Ruiz E., Oliva J., Saez F., Castro E., Conversion of olive tree biomass into fermentable sugars by dilute acid pretreatment and enzymatic saccharification, Bioresource Technology, 99, 6, pp. 1869-1876, (2008)
[3]  
Chum H.L., Johnson D.K., Black S.K., Organosolv pretreatment for enzymic hydrolysis of poplars. 2. Catalyst effects and the combined severity parameter, Industrial & Engineering Chemistry Research, 29, 2, pp. 156-162, (1990)
[4]  
Demirbas A., Bioethanol from cellulosic materials: A renewable motor fuel from biomass, Energy Sources, 27, 4, pp. 327-338, (2005)
[5]  
Dominguez J., Oliet M., Alonso M., Gilarranz M., Rodriguez F., Thermal stability and pyrolysis kinetics of organosolv lignins obtained from Eucalyptus globulus, Industrial Crops and Products, 27, 2, pp. 150-156, (2008)
[6]  
El Hage R., Brosse N., Sannigrahi P., Ragauskas A., Effects of process severity on the chemical structure of Miscanthus ethanol organosolv lignin, Polymer Degradation and Stability, 95, 6, pp. 997-1003, (2010)
[7]  
El Hage R., Chrusciel L., Desharnais L., Brosse N., Effect of autohydrolysis of Miscanthus x giganteus on lignin structure and organosolv delignification, Bioresource Technology, 101, 23, pp. 9321-9329, (2010)
[8]  
Farrell A.E., Plevin R.J., Turner B.T., Jones A.D., O'Hare M., Kammen D.M., Ethanol can contribute to energy and environmental goals, Science, 311, 5760, pp. 506-508, (2006)
[9]  
Goh C.S., Tan H.T., Lee K.T., Brosse N., Evaluation and optimization of organosolv pretreatment using combined severity factors and response surface methodology, Biomass & Bioenergy, 35, 9, pp. 4025-4033, (2011)
[10]  
Halvorsen K.E., Barnes J.R., Solomon B.D., Upper midwestern USA ethanol potential from cellulosic materials, Society and Natural Resources, 22, 10, pp. 931-938, (2009)
123