Adsorption of benzothiophene over acid modified NaY zeolites

SUN Hui-ying; GAN Hai-jun; SUN Lin-ping

Volume 43 Issue 01

Jan. 2015

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SUN Hui-ying, GAN Hai-jun, SUN Lin-ping. Adsorption of benzothiophene over acid modified NaY zeolites[J]. Journal of Fuel Chemistry and Technology, 2015, 43(01): 116-121.

Citation:

SUN Hui-ying, GAN Hai-jun, SUN Lin-ping. Adsorption of benzothiophene over acid modified NaY zeolites[J]. Journal of Fuel Chemistry and Technology, 2015, 43(01): 116-121.

SUN Hui-ying, GAN Hai-jun, SUN Lin-ping. Adsorption of benzothiophene over acid modified NaY zeolites[J]. Journal of Fuel Chemistry and Technology, 2015, 43(01): 116-121.

Citation:

SUN Hui-ying, GAN Hai-jun, SUN Lin-ping. Adsorption of benzothiophene over acid modified NaY zeolites[J]. Journal of Fuel Chemistry and Technology, 2015, 43(01): 116-121.

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Adsorption of benzothiophene over acid modified NaY zeolites

School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China

Received Date: 2014-07-14
Rev Recd Date: 2014-10-25
Publish Date: 2015-01-30

Abstract

Abstract

NaY-C and NaY-P adsorbents were successfully obtained through modifying parent NaY zeolite with citric acid and phosphate acid, respectively. The obtained adsorbents were characterized by scanning electron microscope, X-ray diffraction, X-ray fluorescence, N₂ sorption and temperature programmed desorption of NH₃. The mesopore surface area of the NaY-C adsorbent was increased when the parent NaY zeolite was modified by citric acid, with preserving he zeolite skeletal structure. Meanwhile, the decreased weak acid and increased strong acid content were observed in NaY zeolite modified with phosphate acid aqueous solution and the amount of strong acid sites in the NaY-P adsorbent was more than in the NaY-C adsorbent. The adsorption desulfurization results showed that the NaY-C adsorbent exhibited much higher desulfurization activity than the NaY-P adsorbent in the No.0 diesel oil, although all benzothiophene in model diesel was removed over both. In regeneration experiment, the benzothiophene removal of model diesel oil decreased from 100% to 91.97% and 85.96% after six regenerations over NaY-C and NaY-P adsorbents, respectively. Therefore, the NaY-C adsorbent possessed better desulfurization performance, possibly because the mesopore of the adsorbent is beneficial to the adsorption desulfurization.
- NaY zeolites,
- benzothiophene,
- citric acid,
- phosphate acid,
- adsorption,
- regeneration

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References(27)

References

JIANG Z X, LIU Y, SUN X, TIAN F, SUN F, LIANG C, YOU W, HAN C, LI C. Activated carbons chemically modified by concentrated H₂SO₄ for the adsorption of the pollutants from wastewater and the dibenzothiophene from fuel oils[J]. Langmuir, 2003, 19(3): 731-736.

YANG R, TAKAHASHI A, YANG F H. New sorbents for desulfurization of liquid fuels by π-complexation[J]. Ind Eng Chem Res, 2001, 40(26): 6236-6239.

HERNANDEZ-MALDONADO A J, YANG R T. Desulfurization of commercial liquid fuels by selective adsorption via π-complexation with Cu-(I)-Y zeolite[J]. Ind Eng Chem Res, 2003, 42(13): 3103-3110.

HERNANDEZ-MALDONADO A J, YANG F S, QI G, YANG R T. Desulfurization of transportation fuels by π-complexation sorbents: Cu(I)-, Ni(II)-, and Zn(II)-zeolites[J]. Appl Catal B: Environ, 2005, 56(1/2): 111-126.

VELU S, MA X, SONG C S. Selective adsorption for removing sulfur from jet fuel over zeolite-based adsorbents[J]. Ind Eng Chem Res, 2003, 42(21): 5293-5304.

MA X L, SPRAGUE M, SONG C S. Deep desulfurization of gasoline by selective adsorption over nickel-based adsorbent for fuel cell applications[J]. Ind Eng Chem Res, 2005, 44(15): 5768-5775.

VELU S, SONG C S, ENGELHARD M H, CHIN Y H. Adsorptive removal of organic sulfur compounds from jet fuel over K-exchanged NiY zeolites prepared by impregnation and ion exchange[J]. Ind Eng Chem Res, 2005, 44(15): 5740-5749.

王洪国, 姜恒, 徐静, 孙兆林, 张晓彤, 朱赫礼, 宋丽娟. 苯和1-辛烯对Ce(IV)Y 分子筛选择性吸附脱硫的影响[J]. 物理化学学报, 2008, 24(9): 1714-1718.(WANG Hong-guo, JIANG Heng, XU Jing, SUN Zhao-lin, ZHANG Xiao-tong, ZHU He-li, SONG Li-juan. Effects of benzene and 1-octene on desulfurization by selective adsorption with Ce(IV)Y[J]. Acta Phys-Chim Sin, 2008, 24(9): 1714-1718.)

郑珊, 高濂, 郭景坤. 温和条件下介孔分子筛MCM-41的修饰与表征[J]. 无机材料学报, 2000, 15(5): 844-848.(ZHENG Shan, GAO Lian, GUO Jing-kun. Under the mild condition modification and characterization of mesoporous molecular sieve MCM-41[J]. J Inorg Mater, 2000, 15(5): 844-848.)

XIAO J, LI ZH, LIU B, XIA Q B, YU M X. Adsorption of benzothiophene and dibenzothiophene on ion-impregnated activated carbons and ion-exchanged Y zeolites[J]. Energy Fuels, 2008, 22(6): 3858-3863.

VELU S, MA X, SONG C. Selective adsorption for removing sulfur from jet fuel over zeolite-based adsorbents[J]. Ind Eng Chem Res, 2003, 42(21): 5293-5304.

XUE M, CHITRAKAR R, SAKANE K, HIROTSU T, OOI K, YOSHIMURA Y, FENG Q, SUMIDA N. Selective adsorption of thiophene and 1-benzothiophene on metal-ion-exchanged zeolites in organic medium[J]. J Colloid Interface Sci, 2005, 285(2): 487-492.

XUE M, CHITRAKAR R, SAKANE K, HIROTSU T, OOI K, YOSHIMURA Y, TOBA M, FENG Q. Preparation of cerium-loaded Y-zeolites for removal of organic sulfur compounds from hydrodesulfurizated gasoline and diesel oil[J]. J Colloid Interface Sci, 2006, 298(2): 535-542.

WANG H G, SONG L J, JIANG H, JING X, JIN L L, ZHANG X T, SUN Z L. Effects of olefin adsorptive desulfurization of gasoline over Ce(IV)Y zeolites[J]. Fuel Process Technol, 2009, 90(6): 835-838.

TIAN F P, SHEN Q C, FU Z K, WU Y H, JIA C Y. Enhanced adsorption desulfurization performance over hierarchically structured zeolite Y[J]. Fuel Process Technol, 2014, 128: 176-182.

CHENG Z C, LIU X S, LU J Q, LUO M F. Deep desulfurization of FCC gasoline by selective adsorption over nanosized zeolite-based adsorbents[J]. React Kinet Catal Lett, 2009, 97(1): 1-6.

于善青, 田辉平, 龙军. 改性金属离子对Y型分子筛水热稳定性的影响[J]. 燃料化学学报, 2011, 39(12): 936-943.(YU Shan-qing, TIAN Hui-ping, LONG Jun. Effect of metal element modification on the hydrothermal stability of Y zeolite[J]. J Fuel Chem Technol, 2011, 39(12): 936-943.)

LIN X Y, FAN Y, LIU Z H H, SHI G, LIU H Y, BAO X J. A novel method for enhancing on-stream stability of fluid catalytic cracking (FCC) gasoline hydro-upgrading catalyst: Post-treatment of HZSM-5 zeolite by combined steaming and citric acid leaching[J]. Catal Today, 2007, 125(3/4): 185-191.

肖何, 高俊华, 胡津仙, 章斌, 刘平, 张侃. 酸碱改性HZSM-5分子筛上甲醇制取均四甲苯的研究[J]. 燃料化学学报, 2013, 41(1): 102-109.(XIAO He, GAO Jun-hua, HU Jin-xian, ZHANG Bin, LIU Ping, ZHANG Kan. Synthesis of durene from methanol over alkali and acid modified HSM-5[J]. J Fuel Chem Technol, 2013, 41(1): 102-109.)

刘红梅, 申文杰, 刘秀梅, 包信和, 徐奕德. 分子筛的酸处理对Mo/ HZSM25 催化甲烷无氧芳构化反应性能的影响[J]. 催化学报, 2004, 25(9): 688-692.(LIU Hong-mei, SHEN Wen-jie, LIU Xiu-mei, BAO Xin-he, XU Yi-de. Effect of acid treatment of zeolite on catalytic performance of Mo/ HZSM-5 for methane dehydroaromatization[J]. Chin J Catal, 2004, 25(9): 688-692.)

张旭, 马新宾. NaY 分子筛的脱铝改性[J]. 化学工业与工程, 2007, 24(2): 145-149.(ZHANG Xu, MA Xin-bin. Dealumination of NaY zeolite[J]. Chem Ind Eng, 2007, 24(2): 145-149.)

JIANG M, NG F T T. Adsorption of benzothiophene on Y zeolites investigated by infrared spectroscopy and flow calorimetry[J]. Catal Today, 2006, 116(4): 530-536.

LIU X M, YAN Z F. Optimization of nanopores and acidity of USY zeolite by citric modification[J]. Catal Today, 2001, 68(1/3): 145-154.

FAN Y, LIN X Y, SHI G, LIU H Y, BAO X J. Realumination of dealuminated HZSM-5 zeolite by citric acid treatment and its application in preparing FCC gasoline hydro-upgrading catalyst[J]. Microporous Mesoporous Mater, 2007, 98(1/3): 174-181.

SANTEN R A, DE MAN A J M, JACOBS W P J H, TEUNISSEN E H, KRAMER G J. Lattice relaxation of zeolites[J]. Catal Letter, 1991, 9(3/4): 273-286.

SONIA A, ADRIANA B, JACIER P R. Mesoporous ZSM-5 zeolite catalysts prepared by desilication with organic hydroxides and comparison with NaOH leaching[J]. Appl Catal A: Gen, 2009, 364(1/2): 191-198.

GROEN J C, PEFFER L A A, MOULIJN J A, PEREZ-RAMIREZ J. Mechanism of hierarchical porosity development in MFI zeolites by desilication: the role of aluminium as a pore-directing agent[J]. Chem A European J, 2005, 11(17): 4983-4994.

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