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化工学报  2015 

基于阻滞扩散模型估算柴油脱硫吸附剂的适宜孔径分布

DOI: 10.11949/j.issn.0438-1157.20150877, PP. 3611-3617

Keywords: 吸附剂,吸附脱硫,估算,多孔介质,扩散,孔径分布

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Abstract:

通过GC-PFPD色谱分析国Ⅱ、国Ⅲ、国Ⅳ标准0#柴油中的主要含硫组分,发现苯并噻吩(BT)、二苯并噻吩(DBT)及其烷基取代衍生物是0#柴油中的主要含硫化合物,C2-DBT、C3-DBT是国Ⅳ柴油中的主要含硫化合物。以BT、DBT、4,6-DMDBT为模型化合物,计算含硫化合物在不同大小孔道内的扩散阻滞因子,结合氧化铝堆积孔模型,估算氧化铝基柴油脱硫吸附剂的适宜孔径分布。结果表明,当氧化铝的平均孔径为4~10nm时,含硫化合物的扩散阻滞因子为0.24~0.65,氧化铝的比表面积为100~250m2·g-1,可同时满足较低的扩散阻力和足够大的比表面积。对比分析不同氧化铝的孔分布及其吸附脱硫性能,结果表明氧化铝中4~10nm范围内的孔面积占总孔面积的百分比与其吸附脱硫性能存在显著的正相关关系,初步推测氧化铝基脱硫吸附剂的适宜孔径分布范围为4~10nm。

References

[1]  Wang Z, Wu T, Shi G, Fu X, Tian Y, Feng Y, Wu X, Wu G, Bai Z, Zhang W. Potential source analysis for PM10 and PM2.5 in autumn in a northern city in China [J]. Aerosol and Air Quality Research, 2012, 12: 39-48.
[2]  Baeza P, Aguila G, Gracia F, Araya P. Desulfurization by adsorption with copper supported on zirconia [J]. Catalysis Communications, 2008, 9 (5): 751-755.
[3]  Song C. An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel [J]. Catalysis Today, 2003, 86 (1-4): 211-263.
[4]  Shahadat Hussain A, Tatarchuk B J. Adsorptive desulfurization of jet and diesel fuels using Ag/TiOx-Al2O3 and Ag/TiOx-SiO2 adsorbents [J]. Fuel, 2013, 107: 465-473.
[5]  Chandra Srivastava V. An evaluation of desulfurization technologies for sulfur removal from liquid fuels [J]. RSC Advances, 2012, 2 (3): 759-783.
[6]  Song C, Ma X, Sprague M J, Subramani V. Deep desulfurization of hydrocarbon fuels [P]: US, 8158843. 2012-04-17.
[7]  Wang Wangyin (王旺银), Pan Mingxue (潘明雪), Qin Yucai (秦玉才), Wang Lingtao (王凌涛), Song Lijuan (宋丽娟). Effects of surface acidity on the adsorption desulfurization of Cu (Ⅰ)Y zeolites [J]. Acta Physico-Chimica Sinica (物理化学学报), 2011, 27 (5): 1176-80.
[8]  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]. Journal of Colloid and Interface Science, 2005, 285 (2): 487-492.
[9]  Tang Huang (唐煌), Li Wangliang (李望良), Liu Qingfen (刘庆芬), Guan Lili (关莉莉), Song Jiaqing (宋家庆), Xing Jianmin (邢建民), Liu Huizhou (刘会洲). Mesoporous aluminosilicate adsorbent for adsorption desulfurization of diesel fuel [J]. Science in China:Series B (中国科学: B辑), 2009, 39 (2): 176-182.
[10]  Kim J H, Ma X, Zhou A, Song C. Ultra-deep desulfurization and denitrogenation of diesel fuel by selective adsorption over three different adsorbents: a study on adsorptive selectivity and mechanism [J]. Catalysis Today, 2006, 111 (1/2): 74-83.
[11]  Zhou A, Ma X, Song C. Liquid-phase adsorption of multi-ring thiophenic sulfur compounds on carbon materials with different surface properties [J]. The Journal of Physical Chemistry B, 2006, 110 (10): 4699-4707.
[12]  Wang Q, Liang X, Qiao W, Liu C, Liu X, Zhang R, Ling L. Modification of polystyrene-based activated carbon spheres to improve adsorption of dibenzothiophene [J]. Applied Surface Science, 2009, 255 (6): 3499-3506.
[13]  Guo J, Janik M J, Song C. Density functional theory study on the role of ceria addition in TixCe1-xO2 adsorbents for thiophene adsorption [J]. The Journal of Physical Chemistry C, 2012, 116 (5): 3457-3466.
[14]  Cychosz K A, Wong-Foy A G, Matzger A J. Liquid phase adsorption by microporous coordination polymers: removal of organosulfur compounds [J]. Journal of the American Chemical Society, 2008, 130 (22): 6938-6939.
[15]  Xiao J, Wang X, Chen Y, Fujii M, Song C. Ultra-deep adsorptive desulfurization of light-irradiated diesel fuel over supported TiO2-CeO2 adsorbents [J]. Industrial & Engineering Chemistry Research, 2013, 52 (45): 15746-15755.
[16]  Moosavi E S, Dastgheib S A, Karimzadeh R. Adsorption of thiophenic compounds from model diesel fuel using copper and nickel impregnated activated carbons [J]. Energies, 2012, 5 (10): 4233-4250.
[17]  Li Guoyin (李国印), Zhi Jianping (支建平), Zhang Yulin (张玉林). Pore structure control of activated alumina [J]. Chinese Journal of Inorganic Chemistry (无机化学学报), 2007, 23 (4): 563-568.
[18]  Yu Moxin (余谟鑫), Li Zhong (李忠), Xia Qibin (夏启斌), Wang Shuwen (王书文). Effect of thermal oxidation of activated carbon surface on its adsorption of dibenzothiophene [J]. Journal of Chemical Industry and Engineering (China) (化工学报), 2007, 58 (4): 938-943.
[19]  Watanabe S, Ma X, Song C. Selective sulfur removal from liquid hydrocarbons over regenerable CeO2-TiO2 adsorbents for fuel cell applications [J]. Prepr. Pap.-Am. Chem. Soc., Div. Fuel Chem., 2004, 49 (2): 511-513.
[20]  Cychosz K A, Wong-Foy A G, Matzger A J. Enabling cleaner fuels: desulfurization by adsorption to microporous coordination polymers [J]. Journal of the American Chemical Society, 2009, 131 (40): 14538-14543.
[21]  Favre-RéGuillon A, SéVignon M, Rocault M, Schulz E, Lemaire M. Deep desulfurization of diesel feedstock by selective adsorption of refractory sulfur compounds [J]. Industrial & Engineering Chemistry Research, 2008, 47 (23): 9617-9622.
[22]  Zhao Shaoyun (赵少云), Chen Aiping (陈爱平), Liu Wei (刘伟), Chen Xiaoping (陈晓萍). Montmorillonite assembled with nano-SiO2-particles for gasoline desulfurization [J]. Journal of Inorganic Materials (无机材料学报), 2006, 21 (4): 953-957.
[23]  He Zhimin (何志敏), Yu Guocong (余国琮), Diego Barba. Effect of molecular dimension and shape on hindered diffusion of macromolecules in micropores [J]. Journal of Chemical Industry and Engineering (China) (化工学报), 1993, 44 (2): 143-50.
[24]  He Zhimin (何志敏). Theoretical effects of molecular dimension and configuration on effective diffusion coefficient of macromolecules in microporous membranes [J]. Transactions of Tianjin University (天津大学学报), 1995, 1 (1): 42-47.
[25]  Inoue M, Kominami H, Inui T. Synthesis of large pore-size and large pore-volume aluminas by glycothermal treatment of aluminium alkoxide and subsequent calcination [J]. Journal of Materials Science, 1994, 29 (9): 2459-2466.
[26]  Xiong Ying (熊莹). Study on the modification of mesostructured alumina for diesel desulfurization by adsorption [D]. Fuzhou: Fuzhou University, 2014.

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