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材料工程  2015 

纳米氧化铜的制备及其室温脱除H2S的性能研究

DOI: 10.11868/j.issn.1001-4381.2015.10.001, PP. 1-6

Keywords: 纳米材料,氧化铜,结构,室温脱硫,硫化氢

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Abstract:

采用液相沉淀和固相反应法制备纳米氧化铜,借助XRD,XPS,TEM和BET等手段分析纳米氧化铜的结构,并考察结构对H2S脱除性能的影响。结果表明改变制备工艺参数可获得不同晶粒尺寸的纳米氧化铜,随着晶粒尺寸的增大,材料的脱硫活性明显下降,其中晶粒尺寸为9.3nm的CuO的脱硫性能最好,H2S穿透时间可达270min;纳米氧化铜由于晶粒尺寸小导致的少量团聚对脱硫活性未产生明显影响,但其表面氧空位的出现和铜元素周围电子密度的下降有利于提高脱硫性能;纳米氧化铜的比表面积相差较小时,对脱硫活性的影响不显著,但如果颗粒堆积形成的不规则孔分布较窄,且同时存在着开放和收缩两种孔结构时,有利于H2S的脱除。

References

[1]  周婷, 辛金豪, 彭亮, 等. 活性碳纤维生物挂膜脱除硫化氢[J]. 环境工程学报, 2012, 6(9): 3243-3247. ZHOU Ting, XIN Jin-hao, PENG Liang, et al. Removal of hydrogen sulfide gas by biological activated carbon fiber and bio-membrance[J]. Chinese Journal of Environmental Engineering, 2012, 6(9): 3243-3247.
[2]  侯相林, 高荫本, 陈诵英. 各种金属氧化物高温脱硫性能比较[J]. 环境工程, 1997, 15(3): 30-32. HOU Xiang-lin, GAO Yin-ben, CHEN Song-ying. High temperature H2S removal over various metal oxides[J]. Environmental Engineering, 1997, 15(3): 30-32.
[3]  LI Z J, FLYTZANI-STEPHANOPOULOS M. Cu-Cr-O and Cu-Ce-O regenerable oxide sorbents for hot gas desulfurization[J].Industrial & Engineering Chemistry Research,1997, 36(1): 187-196.
[4]  PINEDA M, PALACIOS J M, ALONSO L.Performance of zinc oxide based sorbents for hot coal gas desulfurization in multicycle tests in fixed-bed reactor[J]. Fuel, 2000, 79(8):885-895.
[5]  ALONSO L, PALACIOS J M, GARCIA E, et al. Characterization of Mn and Cu oxides as regenerable sorbents for hot coal gas desulfurization[J]. Fuel Processing Technology, 2000, 62(1): 31-44.
[6]  LEE H S, KIM J Y, YU J K, et al. A study of desulfurization ability and activation energy for CuO-AgO sorbents[J]. Korean Journal of Chemical Engineering, 2005, 22(6):889-893.
[7]  BU X P, YING Y J, ZHANG C Q, et al. Research improvement in Zn-based sorbent for hot gas desulfurization[J]. Powder Technology, 2008, 180(1-2): 253-258.
[8]  KO T H, CHU H, CHAUNG L K. The sorption of hydrogen sulfide from hot syngas by metal oxides over supports[J]. Chemosphere, 2005, 58(4): 467-474.
[9]  KARVAN O, ATAKUL H. Investigation of CuO/mesoporous SBA-15 sorbents for hot gas desulfurization[J].Fuel Processing Technology, 2008, 89(9): 908-915.
[10]  KARVAN O, SIRKECIOGLU A, ATAKUL H. Investigation of nano-CuO/mesoporous SiO2 materials as hot gas desulphurization sorbents[J].Fuel Processing Technology, 2009,90(12):1452-1458.
[11]  DHAGE P, SAMOKHVALOV A, REPALA D, et al. Copper-promoted ZnO/SiO2 regenerable sorbents for the room temperature removal of H2S from reformate gas streams[J]. Industrial & Engineering Chemistry Research, 2010, 49(18):8388-8396.
[12]  YANG H Y, TATARCHUK B. Novel-doped zinc oxide sorbents for low temperature regenerable desulfurization applications[J].AICHE Journal, 2010, 56(11):2898-2904.
[13]  CUI H, TUM S Q, REESE M A. Removal of sulfur compounds from utility pipelined synthetic natural gas using modified activated carbons[J]. Catalysis Today, 2009, 139(4):274-279.
[14]  KIM H T, JUN K W, KIM S M, et al. Co-precipitated Cu/ZnO/Al2O3 sorbent for removal of odorants t-butylmercaptan (TBM) and tetrahydrothiophene (THT) from natural gas[J]. Energy and Fuels, 2006, 20(5):2170-2173.
[15]  BAE J W, KANG S H, MURALI D G, et al. Effect of Al2O3 content on the adsorptive properties of Cu/ZnO/ Al2O3 for removal of odorant sulfur compounds[J]. International Journal of Hydrogen Energy, 2009, 34(20):8733-8740.
[16]  李芬, 张彦平, 杨莹, 等. 活性炭负载纳米ZnO的结构及常温脱除H2S的性能[J]. 硅酸盐学报, 2012, 40(6):800-805. LI Fen, ZHANG Yan-ping, YANG Ying, et al. Structure of activated carbon supported with nano-ZnO and its removal performance of H2S at room temperature[J]. Journal of the Chinese Ceramic Society, 2012, 40(6):800-805.
[17]  闫波, 王新, 邵纯红, 等. 纳米氧化铜的制备及常温脱硫效能研究[J]. 无机化学学报, 2007, 23(11):1869-1874. YAN Bo, WANG Xin, SHAO Chun-hong, et al. CuO nanoparticles preparation and desulfurization performance at normal temperature [J]. Chinese Journal of Inorganic Chemistry, 2007, 23(11):1869-1874 .
[18]  石镇泰. 燃烧-酸碱滴定法测定银精矿中的硫量[J]. 甘肃冶金, 2008, 30(2): 73-84. SHI Zhen-tai. Determination of sulfur content in silver concentrates by combustion-acid-base titrimetry. [J]. Gansu Metallurgy, 2008, 30(2): 73-84.
[19]  YI H H,YU Q F, TANG X L, et al. Phosphine adsorption removal from yellow phosphorus tail gas over CuO-ZnO-La2O3/activated carbon[J]. Industrial & Engineering Chemistry Research, 2011,50(7):3960-3965.
[20]  张悦, 张磊, 邓积光, 等. 水热法制备特定形貌单晶La2-xSrxCuO4及甲烷催化氧化性能[J]. 催化学报, 2009, 30(4):347-350. ZHANG Yue, ZHANG Lei, DENG Ji-guang, et al. Hydrothermal fabrication and catalytic performance of single-crystalline La2-xSrxCuO4(x=0,1) with specific morphologies for methane oxidation[J]. Chinese Journal of Catalysis, 2009, 30(4):347-350.
[21]  KIM J, KIM W, YONG K J. CuO/ZnO heterostructured nanorods:photochemical dynthesis and the mechanism of HS gas sensing[J] Journal of Physical Chemistry C, 2012,116(29): 15682-15691.
[22]  WU Q, YAKSHINSKIY B V, MADEY T E. Adsorption and decomposition of H2S on UO2 (001) [J].Surface Science, 2003, 523:1-11.
[23]  甘小荣, 薛方红, 黄昊, 等. SiC/C纳米复合材料的制备与性能表征[J]. 材料工程, 2014, (2):75-80. GAN Xiao-rong, XUE Fang-hong, HUANG Hao, et al. Preparation and characterization of SiC/C nano-composites [J]. Journal of Materials Engineering,2014,(2):75-80.
[24]  陈斌, 庞厚君, 张修庆, 等. Fe3Al金属间化合物多孔材料的孔隙特征[J]. 机械工程材料, 2008, 32(5):33-37. CHEN Bin, PANG Hou-jun, ZHANG Xiu-qing,et al. Porosity of Fe3Al intermetallic porous materials[J]. Materials for Mechanical Engineering, 2008, 32(5):33-37.

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