果糖在高黏度水溶液中的生长模型及机理

doi:10.16085/j.issn.1000-6613.2019-1209

化工进展 ›› 2020, Vol. 39 ›› Issue (5): 1714-1721.DOI: 10.16085/j.issn.1000-6613.2019-1209

果糖在高黏度水溶液中的生长模型及机理

龚俊波¹^,²(), 李康¹, 何兵兵³, 黄翠¹, 陈明洋¹

^1.天津大学化工学院，天津 300072
^2.青海民族大学，青海西宁 810007
^3.中低品位磷矿及其共伴生资源高效利用国家重点实验室，贵州贵阳 550500

出版日期:2020-05-05 发布日期:2020-05-25
通讯作者: 龚俊波
作者简介:龚俊波（1974—），男，博士，副教授。E-mail: junbo_gong@tju.edu.cn。
基金资助:
青海省自然科学基金(2019-ZJ-901)

Model and mechanism of fructose crystal growth in aqueous solution with high viscosity

Junbo GONG¹^,²(), Kang LI¹, Bingbing HE³, Cui HUANG¹, Mingyang CHEN¹

^1.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
^2.Qinghai Nationalities University, Xining 810007, Qinghai, China
^3.State Key Laboratory of Efficient Utilization of Low Grade Phosphate Rock and its Associated Resource, Guiyang 550500, Guizhou, China

Online:2020-05-05 Published:2020-05-25
Contact: Junbo GONG

摘要/Abstract

摘要：

果糖是一种高附加值的甜味剂，其水溶液的黏度很高，导致晶体生长速率非常缓慢。利用常规的在线和离线测量方法会因为黏度大和成核而造成测量不准确。这导致果糖晶体在纯水中的生长速率目前尚无可靠数据，难以精确实现果糖工业生产过程的设计及优化。本文通过考察黏度、密度与扩散作用研究了高黏度果糖水溶液中的晶体生长速率。首先，利用旋转黏度计测定了果糖水溶液的黏度，考察了温度、浓度对其黏度的影响，使用经验模型对黏度数据进行了关联。随后利用比重瓶法测定了果糖水溶液的密度，考察了温度、浓度对溶液密度的影响。基于黏度和密度的测定结果，利用自由体积模型预测了果糖饱和水溶液的扩散系数，探究了在高黏度果糖水溶液中影响溶质分子传递过程的关键因素。最后，使用扩散控制的生长模型预测了果糖晶体的理论生长速率。采用单晶生长实验测定了果糖晶体的实际生长速率，将理论生长速率与之进行比较，结果吻合良好。此外，基于扩散控制和实际生长形貌，判断果糖晶体的生长机理属于螺旋错位生长。

关键词: 果糖, 生长速率, 生长预测, 结晶动力学, 生长机理

Abstract:

Fructose is a high value-added sweetener. The high viscosity of its aqueous solution leads to slow crystal growth rate. High viscosity and nucleation can cause inaccurate measurements of conventional online and offline measurement methods. As a result, there is no reliable data to design and optimize the production process of the fructose industry. In this paper, the growth rate of fructose in aqueous solution with high viscosity was studied through viscosity, density and diffusion. Firstly, the viscosity of the fructose aqueous solution was measured by a rotary viscometer. The relationship among temperature, concentration and viscosity was correlated with an empirical model. Subsequently, the density of the fructose aqueous solution was determined by the pycnometer method, and the effects of temperature and concentration on the density of the solution were investigated. Based on the results of viscosity and density measurements, the free-volume model was used to predict the diffusion coefficient of fructose saturated aqueous solution and explore the key factors affecting the mass transfer of solute molecules. Finally, a diffusion-controlled growth model was adopted to predict the theoretical growth rate of fructose crystals. The results agreed with the actual growth rate determined by single crystal growth experiments. In addition, the study of diffusion control and crystal morphology indicated that the growth mechanism of fructose crystals belongs to spiral dislocation growth.

Key words: fructose, growth rate, growth prediction, crystallization kinetics, growth mechanism

中图分类号:

TQ026.5

龚俊波, 李康, 何兵兵, 黄翠, 陈明洋. 果糖在高黏度水溶液中的生长模型及机理[J]. 化工进展, 2020, 39(5): 1714-1721.

Junbo GONG, Kang LI, Bingbing HE, Cui HUANG, Mingyang CHEN. Model and mechanism of fructose crystal growth in aqueous solution with high viscosity[J]. Chemical Industry and Engineering Progress, 2020, 39(5): 1714-1721.

参考文献

1	杨瑞金. 纯结晶果糖的性质及其应用[J]. 冷饮与速冻食品工业, 1997, 3(1): 27-29.
1	YANG Ruijin. The nature and application of pure crystalline fructose[J]. Beverage & Fast Frozen Food Industry, 1997, 3(1): 27-29.
2	刘晓娟, 田强, 王成福, 等. 结晶果糖的功能及应用[J]. 中国食物与营养, 2008, 7: 011.
2	LIU Xiaojuan, TIAN Qiang, WANG Chengfu, et al. Function and application of crystalline fructose[J]. Food and Nutrition in China, 2008, 7: 011.
3	程炜华, 王艳秋. 果糖临床用途与市场调研[J]. 医学综述, 2009, 15(9): 1356-1358.
3	CHENG Weihua, WANG Yanqiu. Clinical application and market research of fructose[J]. Medical Recapitulate, 2009, 15(9): 1356-1358.
4	OKAMURA WILLIAM H, ZHU G D, HILL DAVID K, et al. Synthesis and NMR studies of ¹³C-labeled vitamin D metabolites[J].Org. Chem., 2002, 67(5): 1637-1650.
5	陈锦文. 液相扩散系数的测定和无限稀释液相扩散系数的新关联方程[D]. 天津: 天津大学, 1990.CHEN Jinwen. Determination of liquid diffusion coefficient and new correlation equation of infinite dilution liquid diffusion coefficient[D]. Tianjin: Tianjin University, 1990.
6	OELKERS E H. Calculation of diffusion coefficients for aqueous organic species at temperatures from 0℃ to 350℃[J]. Geochem.Cosmoch. Acta, 1991, 55(12): 3515-3529.
7	COMESANA J F, OTERO J J, CAMESELLA E, et al. Densities and viscosities of ternary systems of water plus fructose plus sodium chloride from 20℃ to 40℃[J]. Journal of Chemical and Engineering Data, 2001, 46(5): 1153-1155.
8	NIKAM P S, ANSARI H R, HASAN M. Density and viscosity studies of glucose and fructose solutions in aqueous and in 0.5 mol/dm³ aqueous NH₄Cl[J]. Journal of Molecular Liquids, 2000, 87(1): 97-105.
9	MULLIN J W. Crystallization [M]. Oxford, United Kingdom: Butterworth-Heinemann, 2001: 112-119.
10	FLOOD A E, PUAGSA S. Refractive index viscosity and solubility at 30℃ and density at 25℃ for the system fructose plus glucose plus ethanol plus water[J]. Journal of Chemical and Engineering Data, 2001, 45(5): 902-907.
11	丁绪淮. 工业结晶[M]. 北京: 化学工业出版社, 1985: 112-119.
11	DING Xuhuai. Industrial crystallization[M]. Beijing: Chemical Industry Press, 1985: 112-119.
12	COSTA L, STORTI G. Self-diffusion of small molecules into Rubbery polymers: a lattice free-volume theory[J]. Journal of Polymer Science Part B: Polymer Physics, 2010, 48(5): 529-540.
13	VRENTAS J S, VRENTAS C M. Prediction of mutual diffusion coefficients for polymer-solvent systems[J]. Journal of Applied Polymer Science, 2000,77(14): 3195-3199.
14	HE X, FOWLER A, TONER M. Water activity and mobility in solutions of glycerol and small molecular weight sugars: implication for cryo-and lyopreservation[J]. Journal of Applied Physics, 2006, 100(7): 074702.
15	ALBON N, DUNNING W. Studies on the behavior of growth steps on sucrose crystals[J]. Acta Crystallographica, 1960, 13(6): 495-498.
16	HOWELL T A, BEN-YOSEPH E, RAO C. et al. Sucrose crystallization kinetics in thin films at elevated temperatures and supersaturations[J]. Growth & Design, 2002, 2(1): 67-72.
17	HUANG Cui, XIE Zhiping, XU Jinchao. Experiment and modeling studies on the solubility of D-Pantolactone in four pure solvents and ethanol-water mixtures[J]. Journal of Chemical & Engineering Data, 2015, 60(3): 870-875.

[1]	吕孝琦, 李洪, 赵振宇, 李鑫钢, 高鑫, 范晓雷. 微波与碳基催化剂协同促进果糖制5-羟甲基糠醛[J]. 化工进展, 2022, 41(2): 637-647.
[2]	慕诗芸, 刘凯, 吕孝琦, 矫义来, 李鑫钢, 李洪, 范晓雷, 高鑫. 微波协同氧化锆@碳纳米管强化果糖制5-羟甲基糠醛[J]. 化工进展, 2022, 41(11): 5858-5869.
[3]	黄勇, 刘俊红, 肖金富, 何凤霞. 聚丁二酸丁二醇酯/聚乙二醇硬脂酸酯共混物非等温结晶行为[J]. 化工进展, 2018, 37(12): 4744-4751.
[4]	张雄, 徐志祥, 李雪辉, 关建郁, 龙金星. 葡萄糖化学催化异构制备果糖研究进展[J]. 化工进展, 2017, 36(12): 4575-4585.
[5]	高志谨, 李永祥, 胡耀平. 低沸点溶剂中果糖制备呋喃衍生物的研究进展[J]. 化工进展, 2017, 36(03): 1052-1058.
[6]	赵树伟, 杨真真, 齐崴, 苏荣欣, 何志敏. 负载型磷钼钒杂多酸催化果糖一锅法制备2,5-二甲酰基呋喃[J]. 化工进展, 2017, 36(01): 189-195.
[7]	吴又多1，付友思1，齐高相1，陈丽杰1，白凤武1，2. 基于果糖与葡萄糖不同混合比例的丙酮丁醇发酵[J]. 化工进展, 2014, 33(06): 1539-1544.
[8]	刘彦丽，王福余，王崇，赵振波. 固体酸WO3/ZrO2催化果糖脱水合成5-羟甲基糠醛[J]. 化工进展, 2014, 33(01): 105-109.
[9]	张守亮，陈坚，华兆哲，堵国成. 角质酶产生菌Thermobifida fusca WSH03-11 诱变及高产突变株发酵条件优化 [J]. 化工进展, 2006, 25(5): 533-.

果糖在高黏度水溶液中的生长模型及机理

Model and mechanism of fructose crystal growth in aqueous solution with high viscosity

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 9

编辑推荐

Metrics

本文评价