全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

二氧化硫在HZSM-5分子筛中吸附的分子模拟

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过实验测定了二氧化硫(SO2)在HZSM-5型分子筛中的吸附性能,采用巨正则系综MonteCarlo方法建立相应的吸附模型,模拟计算相应的吸附行为。在实验与模拟结果相吻合的基础上,进一步模拟计算了SO2在HZSM-5型分子筛中的吸附等温线、吸附微观构型及吸附热等性质。结果表明随着硅铝比(摩尔比)的增大,分子筛对SO2的吸附量降低,当硅铝比大于191时,硅铝比对SO2的吸附量影响很小。SO2分子主要吸附在氢离子和Al原子周围。在Al原子周围,SO2分子比较集中,同时发现氢离子的存在会阻碍SO2的扩散。在吸附量相同的条件下,SO2在HZSM-5型分子筛的吸附热随着硅铝比的升高而降低。

References

[1]  韩愈,常瑞卿.SO2的污染与控制[J].包钢科技,2002,28(1):86-87.HAN Yu,CHANG Ruiqing.Sci Technol of Baotou Steel Corporation(in Chinese),2002,28(1):86-87. [2]冯玲,杨景玲,蔡树中.烟气脱硫技术的发展及应用现状[J].环境工程学报,1997,15(2):19-24.FENG Ling,YANG Jingling,CAI Shuzhong.Chin J Environ Eng(in Chinese),1997,15(2):19-24 [3]王芙蓉,关建郁.吸附法烟气脱硫[J].环境污染治理技术及设备,2003,4(3):72-76.WANG Furong,GUAN Jianyu.Techniques and Equipment for Envi-ronmental Pollution Control(in Chinese),2003,4(3):72-76. [4]李园,张香兰,徐德平.活性炭材料脱除烟气中SO2的机理研究[J].煤炭加工与综合利用,2007(2):46-49.LI Yuan,ZHANG Xianglan,XU Deping.Coal Process Comprehensive Util(in Chinese),2007(2):46-49. [5]LU G Q,DO D D.Preparation of economical sorbents for SO2and NOx removal using coal washery reject[J].Carbon,1991,29(2):207-213. [6]KIM J,HONG I,LEE J.Influence of preparation conditions of ACF on catalytic activity for SO2removal[J].Am Carbon Soc Carbon,1995(5):534-535. [7]IZUMI J.Removal of sulfur dioxide from industrial flue gases[P].Jpn:Kokai Tokyo Koho Jp01119328,1989,Heisei,7. [8]BAERLOCHER C,MEIER W M,OLSON D H.Atlas of Zeolite Framework Types[M].Amsterdam:Elsevier,2001:p157. [9]徐如人,庞文琴.分子筛与多孔材料化学[M].北京:科学出版社,2004,248-252.XU Ruren,PANG Wenqin.Chemistry-Zeolites and Porous Materials(in Chinese).Beijing:Science Press,2004:248-252. [10]KLEMM E,WANG Jianguo,GERHARD E G.A comparative study of the sorption of benzene and phenol in silicalite,HAlZSM-5and NaAlZSM-5by computer simulation[J].Microporous Mesoporous Mater,1998,26:11. [11]丁静,胡玉坤,杨晓西,等.水在ZSM-5型分子筛中吸附的Monte Carlo模拟[J].化工学报,2008,59(9):2276-2282.DING Jing,HU Yukun,YANG Xiaoxi,et al.CIESC J(in Chinese),2008,59(9):2276-2282. [12]CONNOLLY M L.Computation of molecular volume[J].J Am Chem Soc,1985,107:1118-1124. [13]OLSON D H,HAAG W O,Borghard W S.Use of water as a probe of zeolitic properties:interaction of water with HZSM-5[J].Microporous Mesoporous Mater,2000,35/36:435-446.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133