Study on desulfurization of dibenzothiophene molecularly imprinted composite membrane

被引：0

作者：

Li Y. ^{[1
]}

Huang Z.-Y. ^{[1
]}

Lu X.-H. ^{[1
]}

Ji J.-B. ^{[1
]}

机构：

[1] Department of Chemical Engineering, Zhejiang University of Technology, Zhejiang Provincial Key Laboratory of Biofuel Utilization Technology, Petroleum and Chemical Industry Biodiesel Technology Engineering Laboratory, Hangzhou

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2022年 / 36卷 / 01期

关键词：

Adsorption; Desulfurization; Dibenzothiophene; Molecularly imprinted composite membrane;

D O I：

10.3969/j.issn.1003-9015.2022.01.016

中图分类号：

学科分类号：

摘要：

Dibenzothiophene molecularly imprinted composite membrane (D-MIP-CM) was successfully prepared by surface imprinting method with polypropylene membrane as the base membrane via two-step modification of dopamine oxidation and silanization. The structure of D-MIP-CM was characterized by scanning electron microscope and infrared spectrum, and its desulfurization performance was investigated by static adsorption experiments. The prepared D-MIP-CM had good imprinting effects. The equilibrium adsorption capacity of surface polymerization was 66% higher than that of solution polymerization and the mass transfer rate was doubled. Furthermore, the equilibrium adsorption capacity of D-MIP-CM increased by 70% after dopamine modification. The D-MIP-CM based on polypropylene membrane had good adsorption capacity and diffusion rate performance. A desulfurization device coupling adsorption and desorption was constructed, and D-MIP-CM was used in the device for continuous desulfurization. n-heptane was used to dissolve raw materials and protic solvent was used as the stripping solvent, which can significantly improve the desulfurization effect of D-MIP-CM. Mass transfer of dibenzothiophene through D-MIP-CM conforms to "gate model" mechanism of Piletsky. Increasing the temperature and the polarity of the stripping phase are beneficial to improve D-MIP-CM desulfurization performance. © 2022, Editorial Board of "Journal of Chemical Engineering of Chinese Universities". All right reserved.

引用

页码：127 / 134

页数：7

共 18 条

[1]

Limits and measurement methods for emissions from light-duty vehicles(CHINA 6): GB 18352.6-2016, (2016)

[2]

JI C Y., Research on the status quo of catalytic gasoline hydrodesulfurization process technology and energy-saving direction, Chemical Enterprise Management, 6, pp. 51-52, (2020)

[3]

SRIVASTAVA V C., An evaluation of desulfurization technologies for sulfur removal from liquid fuels, ChemInform, 43, 18, pp. 759-783, (2012)

[4]

LI G D, LIN C, TANG L, Et al., Research progress in vehicle fuel desulfurization technology, Chemical Engineering & Equipment, 6, pp. 218-220, (2020)

[5]

CAMPOS-MARTIN J M, CAPEL-SANCHEZ M C, PEREZ-PRESAS P, Et al., Oxidative processes of desulfurization of liquid fuels, Journal of Chemical Technology & Biotechnology, 85, 7, pp. 879-890, (2010)

[6]

ZHANG X, WANG H B, GOU L K, Et al., Study on diesel oxidative desulfurization technology, Petroleum Refinery Engineering, 49, 10, pp. 17-20, (2019)

[7]

ZHANG W, LI X, TONG J Y, Et al., Progresses in ultra-deep desulfurization of fuel oil through adsorption, Petrochemical Technology, 45, 11, pp. 1396-1402, (2016)

[8]

ZHANG W W, HOU X, LI W W, Et al., Research progress of gasoline extraction desulfurization technology, Yunnan Chemical Technology, 46, 7, pp. 26-27, (2019)

[9]

YI C G, YU H Y, ZHAO H, Et al., Technique analysis and prospect of biologic desulphurization process for crude oil and natural gas, Petrochemical Technology, 39, 6, pp. 681-687, (2010)

[10]

WANG X Y, LI J H, CHEN L X., Advanced preparation technologies and strategies for molecularly imprinted materials, Chinese Science Bulletin, 64, 13, pp. 1352-1367, (2019)

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