不同结构多流道螺旋混合器强化碱炼脱酸反应

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摘要针对当前油脂行业碱炼脱酸设备占地大、耗能高、效率低等问题,采用多流道螺旋混合器强化碱炼脱酸反应。探究多流道螺旋混合单元不同流道数F、扭转角φ、长径比s下脱酸率和得率随流量Q的变化规律,并与传统搅拌式混合下的脱酸效果进行对比。结果表明:Q>180 L·h^-1,多流道螺旋混合单元结构参数为F=3,φ=180°,s=1.5时综合脱酸效果最佳,此时脱酸油酸值为0.21 mg·g^-1,其脱酸率和得率分别可达94.17%和88.42%,脱酸率较传统搅拌式混合提高了40.56%。采用多流道螺旋混合器强化碱炼脱酸系统能显著提升脱酸率,可实现碱炼脱酸设备的小型化及节能化。

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	张博文
	唐霞
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	金炜
	崔政伟

关键词：碱炼脱酸多流道螺旋混合器液液非均相混合结构参数

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.

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

Received 2021-05-29;

Fund:国家自然科学基金(11802105)。

Corresponding Authors: 崔政伟,教授,E-mail:cuizhengwei@jiangnan.com。 Email: cuizhengwei@jiangnan.com

About author: 张博文(1996-),男,硕士研究生,研究方向为食品、化工过程强化。

引用本文:

张博文, 唐霞, 刘新宇, 马威, 金炜, 崔政伟.不同结构多流道螺旋混合器强化碱炼脱酸反应[J]. 化学工业与工程, 2022,39(5): 49-56

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, 2022,39(5): 49-56

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