材料研究学报  2011, Vol. 25 Issue (3): 249-254

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粘结剂对颗粒活性炭PSA分离CH4/N2性能的影响

刘立恒1， 辜敏1， 鲜学福1， 喻江涛2

1.重庆大学资源及环境科学学院复杂煤气层瓦斯抽采国家地方联合工程实验室 重庆 400044 2.中电投远达环保工程有限公司 重庆 401122

Effect of Binders on CH4/N2 Performances of Granular Activated Carbons by Pressure Swing Adsorption

LIU Liheng1，GU Min1，XIAN Xuefu1，YU Jiangtao2

1.State and Local Joint Engineering Laboratory of Methane Drainage in Complex Coal Gas Seam, College of Resources and Environmental Science, Chongqing University, Chongqing 400044 2. CPI YUNADA Environmental-Protection Engineering Co.,Ltd, Chongqing 401122

刘立恒 辜敏 鲜学福 喻江涛. 粘结剂对颗粒活性炭PSA分离CH4/N2性能的影响[J]. 材料研究学报, 2011, 25(3): 249-254.
. Effect of Binders on CH4/N2 Performances of Granular Activated Carbons by Pressure Swing Adsorption[J]. Chin J Mater Res, 2011, 25(3): 249-254.

摘要 参考文献 相关文章 Metrics 全文: PDF(1162 KB)   摘要: 以褐煤为原料, 分别采用煤焦油、可溶淀粉和聚丙烯酰胺(PAM)作粘结剂, 制备了用于变压吸附(PSA)分离CH4和N2混合气体(CH4/N2)的三种颗粒活性炭GAC--C、 GAC--T和GAC--P, 对样品的表面官能团和孔结构进行表征, 研究了粘结剂对活性炭PSA分离CH4/N2性能的影响。结果表明: 粘结剂的种类和用量对样品分离效果影响较大, GAC--T的PSA分离CH4/N$_{2}$的性能最好。粘结剂用量(粘结剂与煤粉的质量比)为0.15--0.20时, GAC--T可将CH4浓缩28\%左右; GAC--C、GAC--T和GAC--P表面含氧官能团含量的关系排序为GAC--T>GAC--C>GAC--P, 而三者的孔结构范围则为10--30 nm、2--10 nm和0.4--2 nm, 相差较大; 样品碱性表面含氧官能团的含量越高越有利于CH4/N2的PSA分离; CH4/N$_{2}$分离效果受微孔的影响较大, 0.4--0.7 nm的微孔是造成GAC--C、GAC--T和GAC--P分离效果差异的主要因素。 关键词 ： 无机非金属材料,  颗粒活性炭,  变压吸附,  CH4/N2,  孔结构     Abstract：Three kinds of granular activated carbons(GACs), GAC–C, GAC–T and GAC–P were prepared with lignite by using coal tar, tragantine and PAM as binders, respectively. The pore structures and surface functional groups of GAC–C, GAC–T and GAC–P were characterized, and the effects of binders on the CH4/N2 separation performances of GACs by PSA were investigated. The results show that the influences of binders on the performance of GAC for enrichment methane from CH4/N2 are very notable. Among the three kinds of GACs, GAC–T has the best PSA separation performance. When the mass ratio of tragantine to lignite is 0.15–0.20, GAC–T can improve the concentration of CH4 about 28%. The relationship of surface oxygen–containing functional groups contents for GAC–C, GAC–T and GAC–P is GAC–T>GAC–C>GAC–P, and there are some differences in the ranges of pore distribution 10–30 nm, 2–10 nm and 0.4–2 nm for the three GACs. The CH4/N2 separation performances of GAC–C, GAC–T and GAC–P are mainly influenced by basic surface oxygen–containing functional groups and micropore. The higher basic surface oxygen– containing functional groups concentrations are suitable for CH4/N2 separation by PSA, and the micropores from 0.4nm to 0.7nm are the important factors resulting in the separation performance differences of GAC–C, GAC–T and GAC–P. Key words： inorganic non-metallic materials    granular activated carbon    pressure swing adsorption    CH4/N2    pore structure 收稿日期: 2011-01-04      ZTFLH:  TQ424   基金资助: 国家自然科学基金50774104, 国家自然科学创新群体基金50621403, 教育部重点项目107090, 中国电力投资集团公司科技经费资助项目。 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 刘立恒 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y2011/V25/I3/249 1 GU Min, LIU Kewan, XIAN Xuefu, ZENG Lai, YAO Weijing, Study on the preparation of shaped active carbon by bituminous coal and its performance for concentrating methane from CH4/N2 by pressure swing adsorption, Journal of Functional Materials, 41(2), 204(2010) (辜敏, 刘克万, 鲜学福, 曾来, 姚伟静, 烟煤制备成型活性炭及其PSA浓缩CH4/N2中CH4的性能研究, 功能材料,  41(2), 204(2010)) 2 WU Yuling, DONG Yinsheng, LIN Pinghua, CHU Chenglin, SHENG Xiaobo, GUO Chao, Research on preparation and performance of spherical formed activated carbon, Applied Chemical Industry, 38(5), 691(2009) (吴玉玲, 董寅生, 林萍华, 储成林, 盛晓波, 郭超, 球形成型活性炭的制备及性能研究, 应用化工,  38(5), 691(2009)) 3 M.Lopez, M.Labady, J.Laine, Preparation of actived carbon from wood monolith, Carbon, 34(6), 825(1996) 4 Alejandro Amaya, Natalia Medero, N´estor Tancredi, Hugo Silva, Cristina Deiana, Activated carbon briquettes from biomass materials, Bioresource Technology, 98(8), 1635(2007) 5 A.P.Carvalho, A.S.Mestre, J.Pires, M.L.Pinto, M.Em´?lia Rosa, Granular activated carbons from powdered samples using clays as binders for the adsorption of organic vapours, Microporous and Mesoporous Materials, 93(1–3), 226(2006) 6 SONG Yan, LING Licheng, LI Kaixi, LV Chunxiang, LIU Lang, Adsorption behavior of methane on formed activated carbon, New Carbon Materials, 15(4), 13(2000) (宋 燕, 凌立成, 李开喜, 吕春祥, 刘 朗, 成型活性炭对甲烷吸附性能研究, 新型炭材料,  15(4), 13(2000)) 7 D.Lozano-Castell´o, D. 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