核殼磁性複合物及其於生產生質柴油之應用CORE-SHELL MAGNETIC COMPOSITE AND APPLICATION ON PRODUCING BIODIESEL USING THE SAME

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

100144420

專利證號

I 454314

專利獲證名稱

核殼磁性複合物及其於生產生質柴油之應用CORE-SHELL MAGNETIC COMPOSITE AND APPLICATION ON PRODUCING BIODIESEL USING THE SAME

專利所屬機關 (申請機關)

國立成功大學

獲證日期

2014/10/01

技術說明

本技術中所使用的脂解酵素(lipase)乃源於由餐廳廚餘所篩選純化之菌株，經鑑定後確定為Burkholderia sp.，並命名為Burkholderia sp. C20。該脂解酵素在pH=9之鹼性與55oC之高溫環境時有最佳的催化能力。為使得脂解酵素能快速地自轉酯化反應之產物中分離以利回收再利用，將經最佳化培養後所得到之脂解酵素固定於奈米磁性載體。固定化脂解酵素生物觸媒進行質柴油轉酯化反應時，在醇油莫耳比為9.5至14.5 含水率為31-47 %與反應溫度為40-50oC的條件下，生質柴油之產率達90-95 %，顯示固定化脂解酵素生物觸媒除了具有良好的催化能力之外，其水分與甲醇之耐受性都相當高，因此當以劣質油品(如廢食用油)與含水量高之微藻油脂等做為生質柴油原料時，將不需要去除游離酸與水分等步驟，即可進行生質柴油之合成，且在轉酯化反應時亦不需採取分段添加甲醇的策略，可簡化其製程。 The lipase used was produced from a bacterial strain, Burkholderia sp. C20, isolated from kitchen wastes. The lipase is most effective at 55oC and pH 9.0. To quickly recover the lipase from the products after transesterification, the lipase was immobileized on magnetic nanocomposite. The production of biodiesel from oil with the immobileized lipase could achieve a converseon of 90-95 % at a molar ratios of methanol to oil of 9.5-14.5, a water content of 30-47 %, and a reaction temperatures of 40-50oC achieved. This indicates that the immobileized lipase not only displayed high catalytic ability but also exhibited high water and methanol tolerance. Hence, the immobileized lipase was suitable for converting waste cooking oil (high free fatty acids (FFAs) content) and microalgal oil (high water content) without dewatering or FFAs removal. Moreover, there will be no need to employ step-wise methanol addition strategy, so that the biodiesel production procedures can be largely simplified.

備註

本部(收文號1090055217)同意該校109年9月1日成大產創字第1091106569號函申請終止維護專利(國立成功大學)

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