高级搜索

半焦脱硫剂的制备及其H2S脱除性能

,  , 

downloadPDF

上一篇

下一篇

于英民, 孙翔, 李春虎. 半焦脱硫剂的制备及其H2S脱除性能[J]. 环境化学, 2012, 31(12): 1985-1989.
引用本文: 于英民, 孙翔, 李春虎. 半焦脱硫剂的制备及其H2S脱除性能[J]. 环境化学, 2012, 31(12): 1985-1989.
shu
YU Yingmin, SUN Xiang, LI Chunhu. Preparation and performance of lignite char based desulfurizer for H2S removal in feed gas[J]. Environmental Chemistry, 2012, 31(12): 1985-1989.
Citation: YU Yingmin, SUN Xiang, LI Chunhu. Preparation and performance of lignite char based desulfurizer for H2S removal in feed gas[J]. Environmental Chemistry, 2012, 31(12): 1985-1989.
shu

半焦脱硫剂的制备及其H2S脱除性能

  • 1.

    中国石油大学(华东)化学工程学院,重质油国家重点实验室, 青岛, 266580;

  • 2.

    中国海洋大学化学化工学院,海洋化学理论与工程技术教育部重点实验室, 青岛, 266100

  • 基金项目:

    山东省优秀中青年科学家科研奖励基金(BS2011HZ024)

    中央高校基本科研业务费专项资金资助.

Preparation and performance of lignite char based desulfurizer for H2S removal in feed gas

  • 1.

    State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, Universtiy of Petroleum (East China), Qingdao, 266580, China;

  • 2.

    Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education,College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China

  • Fund Project:

  • 摘要: 利用废弃褐煤半焦原料作为炭基材料前驱体,经表面改性处理后制备高效脱硫剂,用于脱除原料气中的少量H2S杂质.经改性处理后,改性半焦的比表面积显著提高,形成丰富的织网结构,灰分和挥发分减少,固定碳含量增加,表面酸/碱性官能团含量也随着改性处理过程发生明显变化.采用固定床反应器和模拟气体考察脱硫剂的脱硫性能,结果表明,原料褐煤半焦基本没有脱除H2S的能力.改性处理后,随着改性半焦物化性质的改善,脱硫能力迅速提高穿透时间达95 min.负载铁氧化物有利于进一步增强其脱硫性能,穿透时间提高到1095 min;温度、氧含量和水含量等因素对脱硫性能的影响也非常显著.
    Abstract: After the modification, Lignite char exhibited some excellent characteristics, such as great texture structure and large specific surface area. Moreover, the content of oxygen-containing functional groups and fixed carbon were increased remarkably. The modified lignite char was employed as a highly efficient desulfurizers to remove low-concentration hydrogen sulfide in the feed gas. The desulfurization capability was evaluated with simulated gases in a fix bed reactor. The results showed that the breakthrough time of raw lignite char was very short in the H2S removal process, while it was increased greatly with the modified lignite char. The breakthrough time of the desulfurizer LRW and LRF were 915 min and 1096 min, respectively. During the desulfurization process, temperature, oxygen content, water content and loaded iron oxide also had great influence on desulfurizers' performance.
  • 加载中
  • [1] Bandosz T J. On the Adsorption/oxidation of hydrogen sulfide on activated carbons at ambient temperatures[J]. Journal of Colloid and Interface Science, 2002, 246: 1-20
    [2] 许世森, 李春虎, 郜时旺. 煤气净化技术[M]. 北京: 化学工业出版社, 2006:109-152
    [3] Adib F, Bagreev A, Bandosz T J. Effect of surface characteristics of wood-based activated carbons on adsorption of hydrogen sulfide [J]. Journal of Colloid and Interface Science, 1999, 214: 407-415
    [4] 邵纯红, 姜安玺, 李芬, 等. 纳米ZnO室温选择氧化H2S特性的研究[J]. 燃料化学学报, 2005, 33( 4): 470-473
    [5] Sakanishi K. Simultaneous removal of H2S and COS using activated carbons and their supported catalysts [J]. Catalysis Today, 2005, 104: 94-100
    [6] Bashkova S, Baker F S, Wu X X, et al. Activated carbon catalyst for selective oxidation of hydrogen sulphide: On the influence of pore structure, surface characteristics, and catalytically-active nitrogen [J]. Carbon, 2007, 45 (6): 1354-1363
    [7] 于英民, 郭瑞莉, 李春虎. 半焦吸附剂烟气脱硫脱硝性能[J]. 燃料化学学报, 2011, 39 (5): 385-389
    [8] Bandosz T J. Effect of pore structure and surface chemistry of virgin activated carbons on removal of hydrogen sulfide [J]. Carbon, 1999, 37: 483-491
    [9] Bagreev A, Menendez J A, Dukhno I, et al. Bituminous coal-based activated carbons modified with nitrogen as adsorbents of hydrogen sulfide [J]. Carbon, 2004, 42: 469-476
    [10] Rong Y, Liang D T, Tsen L, et al. Kinetics and mechanisms of H2S adsorption by alkaline activated carbon [J]. Environ Sci Technol, 2002, 36(20): 4460-4466
    [11] Bogreev A, Bandosz T J. On the mechanism of hydrogen sulfide removal from moist air on catalytic carbonaceous absorbents[J]. Ind Eng Chem Res, 2005, 44(3): 430-538
    [12] Ikenaga N, Ohgaito Y, Matsushima H, et al. Preparation of zinc ferrite in the presence of carbon material and its application to hot-gas cleaning[J]. Fuel, 2004, 83: 661-669
    [13] Laperdrix E, Costentin G, Saur O, et al. Selective oxidation of H2S over CuO/Al2O3: Identification and role of the sulfurated species formed on the catalyst during the reaction [J]. Journal of Catalysis, 2000, 189: 63-69
    [14] 肖永厚,王树东,袁权. 无氧下低浓度硫化氢在浸渍活性炭上的吸附研究[J]. 燃料化学学报, 2006, 34(6): 92-96
    [15] 谭小耀, 吴迪铺, 袁权. 浸渍活性炭脱硫过程中孔结构及气体水含量的影响[J]. 化工学报, 1997, 48 (2): 238-240
    [16] Primavera A, Trovarelli A, Andreussi P, et al. The effect of water in the low-temperature catalytic oxidation of hydrogen sulfide to sulfur over activated carbon [J]. Applied Catalysis A: General, 1998, 173: 185-192
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  675
  • HTML全文浏览数:  640
  • PDF下载数:  359
  • 施引文献:  0
出版历程
  • 收稿日期:  2012-03-02

半焦脱硫剂的制备及其H2S脱除性能

  • 1.  中国石油大学(华东)化学工程学院,重质油国家重点实验室, 青岛, 266580;
  • 2.  中国海洋大学化学化工学院,海洋化学理论与工程技术教育部重点实验室, 青岛, 266100
  • 收稿日期:  2012-03-02
基金项目:

山东省优秀中青年科学家科研奖励基金(BS2011HZ024)

中央高校基本科研业务费专项资金资助.

摘要: 利用废弃褐煤半焦原料作为炭基材料前驱体,经表面改性处理后制备高效脱硫剂,用于脱除原料气中的少量H2S杂质.经改性处理后,改性半焦的比表面积显著提高,形成丰富的织网结构,灰分和挥发分减少,固定碳含量增加,表面酸/碱性官能团含量也随着改性处理过程发生明显变化.采用固定床反应器和模拟气体考察脱硫剂的脱硫性能,结果表明,原料褐煤半焦基本没有脱除H2S的能力.改性处理后,随着改性半焦物化性质的改善,脱硫能力迅速提高穿透时间达95 min.负载铁氧化物有利于进一步增强其脱硫性能,穿透时间提高到1095 min;温度、氧含量和水含量等因素对脱硫性能的影响也非常显著.

English Abstract

    全文HTML

参考文献 (16)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心