本文選題：生物柴油 + 油料種子��； 參考：《云南師范大學(xué)》2015年碩士論文

【摘要】：隨著石化能源儲(chǔ)量的減少,發(fā)展多元化能源體系已成為世界各國(guó)的重要戰(zhàn)略之一。生物柴油以其優(yōu)良的可再生性和環(huán)保性而受到廣泛關(guān)注,傳統(tǒng)酯交換法是目前工業(yè)化生產(chǎn)生物柴油的主要方法。與傳統(tǒng)酯交換法相比,原位酯交換法避免了油脂的提取過(guò)程,用含油原料直接與甲醇混合進(jìn)行酯交換反應(yīng)制備生物柴油,在整個(gè)反應(yīng)過(guò)程中,甲醇一方面劑萃取出原料中的油脂,另一方面作為反應(yīng)物與萃取出的油脂進(jìn)行酯交換反應(yīng)。因此,原位酯交換法是一種高效的生物柴油制備方法。本實(shí)驗(yàn)對(duì)小桐子、橡膠籽和漆籽仁在濃H2SO4的催化下,進(jìn)行原位酯交換反應(yīng)制備生物柴油的實(shí)驗(yàn)研究。實(shí)驗(yàn)得到小桐子原位酯交換制備生物柴油的最佳反應(yīng)條件:配比(m仁:m甲醇,下同)為1:12,催化劑的濃度為0.2mol/L,溫度為65±2℃,反應(yīng)時(shí)間為15h,該條件下小桐子生物柴油的產(chǎn)率為29.40%;橡膠籽原位酯交換制備生物柴油的最佳反應(yīng)條件:配比為1:12,催化劑的濃度為0.2mol/L,溫度為65±2℃,反應(yīng)時(shí)間為15h,該條件下橡膠籽生物柴油的產(chǎn)率為17.55%;漆籽仁原位酯交換制備生物柴油的最佳反應(yīng)條件:配比為1:12,催化劑的濃度為0.1mol/L,溫度為65±2℃,反應(yīng)時(shí)間為15h,該條件下漆籽仁生物柴油的產(chǎn)率為8.50%。以小桐子為原料,在單因素實(shí)驗(yàn)基礎(chǔ)上采用響應(yīng)面分析方法Box-Behnken中心組合實(shí)驗(yàn),考察了上述單因素中影響較大的配比、催化劑濃度和反應(yīng)時(shí)間3個(gè)因素及交互作用對(duì)產(chǎn)率的影響,固定溫度為65±2℃,優(yōu)化得到的最優(yōu)實(shí)驗(yàn)條件:配比為1:13.77,催化劑的濃度為0.22mol/L,反應(yīng)時(shí)間為18h,在此條件下預(yù)測(cè)生物柴油的產(chǎn)率為31.16%,在最優(yōu)條件下進(jìn)行驗(yàn)證實(shí)驗(yàn),生物柴油的產(chǎn)率為30.57%。因此模型可靠,能為實(shí)際生產(chǎn)提供依據(jù)和幫助。原位酯交換法制備生物柴油不需要從含油原料中提取油脂,因此降低了過(guò)程成本,縮短了工藝,實(shí)現(xiàn)了含油原料到生物柴油的一步轉(zhuǎn)化。經(jīng)實(shí)驗(yàn)驗(yàn)證,該方法實(shí)用可靠。
[Abstract]:With the decrease of fossil energy reserves, the development of diversified energy systems has become one of the most important strategies in the world. Biodiesel has attracted wide attention for its excellent reproducibility and environmental protection. Traditional transesterification is the main method for the industrial production of biodiesel. Compared with the traditional transesterification method, the in situ transesterification method avoids the process of oil extraction. On the one hand, methanol extracts the oil from raw materials, on the other hand, it acts as a reactant for transesterification with the extracted oil. Therefore, transesterification in situ is an efficient method for the preparation of biodiesel. In this paper, the in situ transesterification of jatropha, rubber seed and lacquer kernels catalyzed by concentrated H2SO4 to prepare biodiesel was studied. The optimum reaction conditions for the preparation of biodiesel by in situ transesterification of jatropha L. were as follows: 1: 12, 0.2mol / L catalyst concentration, 65 鹵2 鈩，

本文編號(hào)：1976617