响应面法优化小桐子油酸法脱胶预处理工艺
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摘要
用于制备航空煤油的植物油含大量的胶质(以磷脂为主),需对其进行脱胶预处理。采用酸法脱胶研究了柠檬酸添加量、脱胶温度、加水量、搅拌转速、活性炭添加量、乙醇胺(MEA)添加量和MEA反应时间对小桐子油脱胶效果的影响。在单因素实验基础上,根据Box-Behnken中心组合实验设计原理,用响应面法优化工艺条件。结果表明:最佳工艺条件为质量分数45%的柠檬酸添加量2. 12%、MEA添加量0. 52%、MEA反应时间26. 23 min、搅拌转速258. 47 r/min、脱胶温度50℃、加水量2%、活性炭添加量2%,在此条件下,模型预测脱胶小桐子油磷含量为0. 61 mg/kg,实测值为0. 65 mg/kg,误差率为6. 55%,证明模型可靠。
The vegetable oil used for preparation of aviation kerosene contains a large amount of colloid( mainly phospholipid),which needs to be pretreated with degumming. By acid-assisted degumming,the effects of dosage of citric acid,degumming temperature,dosage of water,stirring speed,dosage of activated carbon,dosage of monoethanolamine( MEA) and MEA reaction time on degumming effect of Jatropha curcas oil were studied. On the basis of single factor experiment,the process conditions were optimized by response surface methodology according to Box-Behnken center combination experiment design principle. The results showed that the optimal process conditions were obtained as follows: dosage of 45% citric acid 2. 12%,dosage of MEA 0. 52%,MEA reaction time 26. 23 min,stirring speed258. 47 r/min,degumming temperature 50 ℃,dosage of water 2% and dosage of activated carbon 2%.Under these conditions,the predictive value and measured value of the phosphorus content in the degummed oil were 0. 61 mg/kg and 0. 65 mg/kg respectively,and the error rate was 6. 55%,which proved that the model was reliable.
The vegetable oil used for preparation of aviation kerosene contains a large amount of colloid( mainly phospholipid),which needs to be pretreated with degumming. By acid-assisted degumming,the effects of dosage of citric acid,degumming temperature,dosage of water,stirring speed,dosage of activated carbon,dosage of monoethanolamine( MEA) and MEA reaction time on degumming effect of Jatropha curcas oil were studied. On the basis of single factor experiment,the process conditions were optimized by response surface methodology according to Box-Behnken center combination experiment design principle. The results showed that the optimal process conditions were obtained as follows: dosage of 45% citric acid 2. 12%,dosage of MEA 0. 52%,MEA reaction time 26. 23 min,stirring speed258. 47 r/min,degumming temperature 50 ℃,dosage of water 2% and dosage of activated carbon 2%.Under these conditions,the predictive value and measured value of the phosphorus content in the degummed oil were 0. 61 mg/kg and 0. 65 mg/kg respectively,and the error rate was 6. 55%,which proved that the model was reliable.
引文
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[14]李一哲,李法社,包桂蓉,等.小桐子及其油脂的理化特性分析[J].中国油脂,2013,38(3):87-88.
[15]杨晓琴,黄元波,郑云武,等.小桐子油的精炼及其氧化稳定性[J].食品工业科技,2018,39(5):48-52.
[16]赵丽丽,常世彦,许洁,等.中国生物液体燃料技术经济分析及预测[J].清华大学学报(自然科学版),2015,55(9):1023-1035.
[2]赵光辉,董平,姜伟,等.油脂脱胶技术现状及发展方向[J].粮食与油脂,2017,30(11):14-16.
[3]王月华,房涛,程芳园,等.玉米油水化脱胶无皂精炼工艺探讨[J].粮食与食品工业,2016,23(4):27-31.
[4]雷筱芬.米糠毛油的中温酸式脱胶工艺[J].食品研究与开发,2010,31(3):48-51.
[5]JULIANA M L,MOURA N,GONCALVES L,et al.Degumming of vegetable oil by microporous membrance[J].JFood Eng,2005,70:473-478.
[6]JIANG X F,CHANG M,JIN Q Z,et al.Application of phospholipase A1and phospholipase C in the degumming process of different kinds of crude oils[J].Process Biochem,2015,50:432-437.
[7]汪勇,温勇,黄才欢,等.无机陶瓷膜超滤大豆混合油脱胶的研究[J].中国油脂,2004,29(11):15-17.
[8]李兴勇,陈玉保,杨顺平,等.脱胶在植物油精炼中的研究进展[J].中外能源,2018,23(4):19-25.
[9]尚建疆,张望梅,刘芳.菜籽油脱胶技术研究进展[J].农村经济与科技,2018(3):95,236.
[10]那治国,马永强,陈文红,等.响应面法优化米糠油草酸脱胶工艺的研究[J].中国调味品,2017,42(4):36-41.
[11]蒋晓菲,夏袁,金青哲,等.菜籽毛油酸法脱胶工艺条件的优化[J].中国油脂,2013,38(6):4-8.
[12]吴云静,张勋,宋国辉,等.冷榨芝麻油酸法脱胶工艺[J].食品工业科技,2014,35(17):205-208.
[13]杨佳佳,鹿保鑫.青豆油脱胶工艺研究[J].中国粮油学报,2013,28(3):74-79.
[14]李一哲,李法社,包桂蓉,等.小桐子及其油脂的理化特性分析[J].中国油脂,2013,38(3):87-88.
[15]杨晓琴,黄元波,郑云武,等.小桐子油的精炼及其氧化稳定性[J].食品工业科技,2018,39(5):48-52.
[16]赵丽丽,常世彦,许洁,等.中国生物液体燃料技术经济分析及预测[J].清华大学学报(自然科学版),2015,55(9):1023-1035.