湿热法在废油脂处理中的应用
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摘要
研究湿热法在废油脂处理中的应用,考察了温度、压力、时间和水用量等处理因素对实验结果的影响,确定了最佳处理条件,即:废油脂30g、水12g于100℃密闭湿热处理45min,所得油脂的品质明显改善,酸值由2.26mg KOH/g降为2.06mg KOH/g,碘值由73.84g/100g降为70.80g/100g,皂化值由200.27mg KOH/g升至204.39mg KOH/g。上述结果表明,经湿热法处理后的油脂更适合于生物柴油的制备。
The treatment of waste oil using moist heating method was studied in this paper.The effects of different conditions were investigated and the optimum conditions were as follows:30 g waste oil with 12 g water was treated for 45 min at 100 ℃.It was found that the quality of oil was improved obviously.Acid value and iodine value of the treated oil decreased from 2.26 mgKOH/g to 2.06 mgKOH/g and from 73.84 g/100 g to 70.80 g/100 g,inspectively,and the saponification value increased from 200.27 mg KOH/g to 204.39 mg KOH/g.The above results indicated that,the waste oil treated by moist heating method was more appropriate for the preparation of biodiesel.
The treatment of waste oil using moist heating method was studied in this paper.The effects of different conditions were investigated and the optimum conditions were as follows:30 g waste oil with 12 g water was treated for 45 min at 100 ℃.It was found that the quality of oil was improved obviously.Acid value and iodine value of the treated oil decreased from 2.26 mgKOH/g to 2.06 mgKOH/g and from 73.84 g/100 g to 70.80 g/100 g,inspectively,and the saponification value increased from 200.27 mg KOH/g to 204.39 mg KOH/g.The above results indicated that,the waste oil treated by moist heating method was more appropriate for the preparation of biodiesel.
引文
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[8]Yu B X,Kong X K,Wei L Z,et al.Treatment of discardedoil in supercritical carbon dioxide for preparation of carbonmicrospheres[J].J Mater Cycles Waste Manage,2011,13(4):298～304.
[9]王宇卓,聂永丰,任连海.湿热法处理实现厨余垃圾饲料化的研究[J].环境污染治理技术与设备,2005,6(9):75～78.
[10]陈双莉,张清清,江元汝.食用油的碘值、酸值、皂化值的测定及健康评价[J].辽宁化工,2011,40(5):529～531.
[2]陈志锋,吴虹,宗敏华.固定化脂肪酶催化高酸废油脂酯交换生产生物柴油[J].催化学报,2006,27(2):146～150.
[3]邓鹏,程永强,薛文通.油脂氧化及其氧化稳定性测定方法[J].食品科学,2005,26(z1):196～199.
[4]Seppanen C M,Csallany A S.Formation of 4-hydroxynone-nal,a toxic aldehyde,in soybean oil at frying temperature[J].J Am oil Chem Soc,2002,79(10):1 033～1 038.
[5]Ayhan D.Biodiesel fuels from vegetable oil via catalytic andnon-catalytic supercritical alcohol transesterifications andother methods:a survey[J].Energy Convers Manage,2003,44(13):2 093～2 109.
[6]Shimada Y,Watanabe Y,Samukawa T,et al.Conversion ofvegetable oil to biodiesel using immobilized candida antarcti-ca lipase[J].J Am Oil Chem Soc,1999,76(7):789～793.
[7]谭力红.废餐饮油制备生物柴油研究现状与应用前景[J].化工生产与技术,2007,14(1):30～33.
[8]Yu B X,Kong X K,Wei L Z,et al.Treatment of discardedoil in supercritical carbon dioxide for preparation of carbonmicrospheres[J].J Mater Cycles Waste Manage,2011,13(4):298～304.
[9]王宇卓,聂永丰,任连海.湿热法处理实现厨余垃圾饲料化的研究[J].环境污染治理技术与设备,2005,6(9):75～78.
[10]陈双莉,张清清,江元汝.食用油的碘值、酸值、皂化值的测定及健康评价[J].辽宁化工,2011,40(5):529～531.