Analysis of the continous membrane technology of the plant protein separation/concentration process by Experimental Design Methodology

• Main Authors: Chao-Kai Chen, 陳朝楷
• Other Authors: Tsair-Wang Chung
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/5748b2

碩士 === 中原大學 === 化學工程研究所 === 103 === Jatropha curcas has become a popular application in biodiesel process technology because of its non-edible crop and rich-oiled. The researches indicated that Jatropha residue exhibited ample protein, and could be applied in high value product (eg. natural fertilizer and wood adhesive). Fouling, larger membrane areas and frequent membrane cleaning is the main reason for increasing the energy consumption and operation cost. Therefore, the research is focus on establishing the math models to modify the shortness of membrane filtration and compares with the recently protein concentration technology. In this study, the optimized operation factor of protein concentration with Response surface methodology (RSM) such as membrane pore size(x1), pH value(x2) and transmembrane pressure(x3) were discussed the continuous membrane filtration technology of Jatropha protein concentration. The math models were built by RSM and the results showed that R^2 value for models were greater than 0.9. The optimal result of protein rejection is above 80% and flux with 40 L/m2-h in the operation factor (x1= 0.8um, x2= 5 and x3= 0.75 kg/cm2). While the area of membrane is more than 0.25 m2, the result is more energy efficiency and saving-time with freeze-drying. In that, the research indicates the optimal factors to improve the efficiency protein and water separation with membrane technology.