| 正交法优化松脂直接制备对伞花烃和松脂基生物柴油的工艺条件及产品性能表征 |
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| 引用本文： | 曾玲玲,周丹,邓永福,黄莹莹,覃艳淑,唐文.正交法优化松脂直接制备对伞花烃和松脂基生物柴油的工艺条件及产品性能表征[J].大众科技,2014(6):101-104. |
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| 作者姓名： | 曾玲玲 周丹 邓永福 黄莹莹 覃艳淑 唐文 |
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| 作者单位： | [1]广西玉林市环境监测站,广西玉林537000 [2]广西大学化学化工学院,广西南宁530004 [3]河池市金城江区环境保护局,广西河池547000 [4]广西壮族自治区食品药品监督管理局,广西南宁530022 |
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| 基金项目： | 广西自然科学基金项目2013GxNsF从019050;广西研究生教育创新计划资助项目YCSZ2012025 |
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| 摘 要： | 以松脂为原料,酸改性膨润土为催化剂进行松脂直接歧化-裂解制备对伞花烃和松脂基生物柴油的研究。采用三因素四水平正交实验考察了反应温度、催化剂用量(以原料质量分数计)和反应时间对对伞花烃得率和松脂基生物柴油酸值的影响。实验结果表明,反应的优化条件为:反应温度260℃、催化剂用量为10%和反应时间120 min,对伞花烃的得率为47.9897%和松脂基生物柴油酸值为0.46 mgKOH·g-1,反应温度和催化剂用量对产品的收率和品质影响较为显著。松脂基生物柴油与O#柴油调和后低温流动性得到明显改善。
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| 关 键 词： | 松脂 对伞花烃 生物柴油 理化性能 正交设计 |
Orthogonal experiments for optimizing the preparation conditions of p-cymene and oleoresin biodiesel from oleoresin and characterization of products |
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| Abstract: | P-cymene and biodiesel from oleoresin was prepared by the disproportionation-cracking method with oleoresin as raw material and acid-modified bentonite as catalyst. According to the three factors and four levels of orthogonal experiments, the influence of reaction temperature, dosage of catalyst in weight of oleoresin and reaction time on the disproportionation-cracking reation was studied. The results showed that the yield and quality were influence uncommonly by the acid-modified bentonite reaction temperature. The following optimum conditions for disproportionation-cracking process were obtained：reaction temperature 260＆#176;C, dosage of catalyst 10%in weight of oleoresin and reaction time 120min. Under those conditions the yield of p-cymene is 47.9897%and the acid value of biodiesel oil is 0.46mg/KOH·g^-1. It is found that when the biodiesel is mixed with 0# diesel, at low temperature the mixture has better flowability. |
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| Keywords: | Oleoresin p-cymene biodiesel orthogonal design |
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