Enhancement of alkali deacidification by multi-channel spiral mixer with different structure

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Abstract In view of the current oil industry alkali deacidification equipment with large area, high energy consumption, low efficiency and other issues, a novel multi-channel spiral mixer to enhance alkali deacidification is developed in this paper. The changes of the deacidification rate and yield with flux (Q) under different number of channels (F), torsion angle (φ), length-diameter ratio (s) were investigated, and compared with those of traditional stirring mixing. The results show that the deacidification effect is the best when Q>180 L·h^-1 and the structural parameters of the multi-channel spiral mixer are F=3,φ=180°, s=1.5, the acids value of the deacidification oil is 0.21 mg·g^-1, and the deacidification rate and yield reach 94.17% and 88.42%, respectively. The deacidification rate is 40.56% higher than that of traditional stirring mixing. Using multi-channel spiral mixer to strengthen the system of alkali deacidification can significantly increase the deacidification rate, which will promote the miniaturization and energy saving of alkali deacidification equipment.

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	Articles by authors
	ZHANG Bowen
	TANG Xia
	LIU Xinyu
	MA Wei
	JIN Wei
	CUI Zhengwei

Keywords： alkali deacidification multi-channel spiral mixer liquid-liquid heterogeneous mixing structural parameters

Received 2021-05-29;

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ZHANG Bowen, TANG Xia, LIU Xinyu, MA Wei, JIN Wei, CUI Zhengwei.Enhancement of alkali deacidification by multi-channel spiral mixer with different structure[J] Chemcial Industry and Engineering, 2022,V39(5): 49-56

[1] WANG X, WANG X, XIE D. A novel method for oil deacidification:Chemical amidation with ethanolamine catalyzed by calcium oxide[J]. LWT-Food Science and Technology, 2021, doi:10.1016/j.lwt.2021.111436
[2] BAO Y, ZHOU Q, ZHANG M, et al. Wet-spun nano TiO₂/chitosan nanocomposite fibers as efficient and retrievable absorbent for the removal of free fatty acids from edible oil[J]. Carbohydrate Polymers, 2019, 210:119-126
[3] SHEN Q, ZHANG Z, EMAMI S, et al. Triacylglycerols are preferentially oxidized over free fatty acids in heated soybean oil[J]. Science of Food, 2021, doi:10.1038/s41538-021-00086-3
[4] 韩山山.磷脂与游离脂肪酸对植物油烟气形成与氧化稳定性的影响研究[D].江苏无锡:江南大学, 2014 HAN Shanshan. Studies on effects of phospholipids and free fatty acids on formation of smoke and oxidation stability in vegetable oils[D]. Jiangsu Wuxi:Jiangnan University, 2014(in Chinese)
[5] GUILLEN M D, GOICOECHEA E. Oxidation of corn oil at room temperature:Primary and secondary oxidation products and determination of their concentration in the oil liquid matrix from 1H nuclear magnetic resonance data[J]. Food Chemistry, 2009, 116(1):183-192
[6] JAMAL Y, BOULANGER B O. Separation of oleic acid from soybean oil using mixed-bed resins[J]. Journal of Chemical&Engineering Data, 2010, 55(7):2405-2409
[7] ADHAMI K, ASADOLLAHZADEH H, GHAZIZADEH M. A novel process for simultaneous degumming and deacidification of soybean, canola and sunflower oils by tetrabutylphosphonium phosphate ionic liquid[J]. Journal of Industrial and Engineering Chemistry, 2019, 76:245-250
[8] FIRMAN L R, OCHOA N A, MARCHESE J, et al. Deacidification and solvent recovery of soybean oil by nanofiltration membranes[J]. Journal of Membrane Science, 2013, 431:187-196
[9] CHUNG T W, WU Y, HSU S H. Removal of free fatty acid from plant oil by the adsorption process[J]. IOP Conference Series:Materials Science and Engineering, 2018, doi:10.1088/1757-899X/362/1/012019
[10] HUANG J, SATHIVEL S. Purifying salmon oil using adsorption, neutralization, and a combined neutralization and adsorption process[J]. Journal of Food Engineering, 2010, 96(1):51-58
[11] BHOSLE B M, SUBRAMANIAN R. New approaches in deacidification of edible oils:A review[J]. Journal of Food Engineering, 2005, 69(4):481-494
[12] 刘玉兰.油脂制取与加工工艺学[M]. 2版.北京:科学出版社, 2009
[13] 高哲,赵枫,俞建峰,等.不同结构静态螺旋混合器强化湿法脱硫数值模拟[J].化学工业与工程, 2020, 37(3):50-59 GAO Zhe, ZHAO Feng, YU Jianfeng, et al. Numerical simulation of wet desulfurization by screw static mixer with different structure[J]. Chemical Industry and Engineering, 2020, 37(3):50-59(in Chinese)
[14] BOFFITO D C, GALLI F, PIROLA C, et al. Ultrasonic free fatty acids esterification in tobacco and canola oil[J]. Ultrasonics Sonochemistry, 2014, 21(6):1969-1975
[15] Kim J L. Controlled hydrodynamic cavitation-assisted nanoreactor for less chemical-higher yield in neutralization of vegetable oil refining process[J]. Food Science and Industry, 2018, 51(2):114-126
[16] 王宗勇,陈超.多流道螺旋静态混合器混合性能的数值模拟研究[J].中国机械工程, 2013, 24(2):268-273, 279 WANG Zongyong, CHEN Chao. Numerical simulation of mixing performance in a multi-channel spiral static mixer[J]. China Mechanical Engineering, 2013, 24(2):268-273, 279(in Chinese)
[17] Svenson E, Willits J. Nano Neutralization^TM[J]. Green Vegetable Oil Processing, 2014, 147-157
[18] 国家卫生和计划生育委员会.GB 5009.229-2016食品安全国家标准食品中酸价的测定[S].北京:中国标准出版社,2016-08-31
[19] 张鹏举.液液分散体系中液滴破碎机理的实验研究[D].北京:北京化工大学, 2016 ZHANG Pengju. Experimental study of drop breakup mechanism in liquid-liquid dispersion system[D]. Beijing:Beijing University of Chemical Technology, 2016(in Chinese)
[20] 李治建,王建康,甄一毫.不同结构静态混合器内熔体流动及混合效果的数值模拟[J].塑料, 2020, 49(2):119-122, 127 LI Zhijian, WANG Jiankang, ZHEN Yihao. Numerical analysis on the flow and mixing of the melt in static mixers with different structure[J]. Plastics, 2020, 49(2):119-122, 127(in Chinese)
[21] 国家质量监督检验检疫总局.GB/T 1535-2017大豆油[S].北京:中国标准出版社,2017-12-29