研究了ZSM-5沸石分子筛对氢的超临界吸附特性.结果表明,在77 K/5 MPa、195 K/7 MPa、293 K/7 MPa条件下,ZSM-5沸石分子筛的储氢质量分数分别为1.97%、0.65%和0.4%.用Clausius-Clapeyron方程求得的等量吸附热(3.8kJ/mol)与吸附量无关,表明该分子筛是一种表面势场均匀的吸附剂.将表面过剩吸附理论与描述Ⅰ型等温线的诸理论模型结合,分析了超临界吸附等温线,发现基于Toth方程的等温线模型在整个实验范围内与实验数据吻合较好,由该模型计算出的氢吸附相密度在77 K达到55.6 kg/m3.根据回归参数讨论了超临界条件下氢在微孔沸石分子筛中的吸附机理,确认了氢在微孔沸石分子筛中的吸附为物理吸附.
参考文献
| [1] | A.Dedieu (Ed),Transition Metal Hydrides,(New York:Wiley Pub Inc,1992) p.64 |
| [2] | S.C.Amendola,S.L.Sharp-Goldman,M.S.Janjua,N.C.Spencer,M.T.Kelly,P.J.Petillo,M.Binder,Int.J.Hydrogen Energy,25(10),969(2000) |
| [3] | F.L.Darkrim,P.Malbrunot,G.P.Tartaglia,Int.J.Hydrogen Energy,27(2),193(2002) |
| [4] | F.Darkrim,D.Levesque,J.Phys.Chem.B,104(29),6773(2000) |
| [5] | ZOU Yong,HAN Buxin,YAN Haike,Acta Energiae Solaris Sinica,19(4),449(1998)(邹勇,韩布兴,阎海科,太阳能学报,19(4),449(1998)) |
| [6] | J.Weitkamp,M.Fritz,S.Ernst,Int.J.Hydrogen Energy,20(12),967(1995) |
| [7] | H.W.Langmi,D.Book,A.Walton,S.R.Johnson,M.M.AlMamouri,J.D.Speight,P.P.Edwards,I.R.Harris,P.A.Andersonm J.of Alloys and Compounds,404～406(1-2),637(2005) |
| [8] | M.G.Nijkamp,J.E.M.J.Raaymakers,A.J.van Dillen,K.P.de Jong.Appl.Phys.A:Materials Science and Processing,72(5),619(2001) |
| [9] | T.C.Golden,S.Sircar.J.Colloid Interface Sci.,162(1),182(1994) |
| [10] | ZHOU Li,ZHOU Yaping,Science in China (Series B),26(5),473(1996)(周理,周亚平,中国科学(B辑),26(5),473(1996)) |
| [11] | ZHAN Liang,LI Kaixi,ZHU Xingming,SONG Yan,LI Chunxiang,LING Licheng,Materials Science & Engineering(Chinese),20(1),31(2002)(詹量,李开喜,朱星明,宋燕,吕春祥,凌立成,材料科学与工程,20(1),31(2002)) |
| [12] | D.Schuring,A.O.Koriabkina,A.M.de Jong.B.Smit,R.A.van Santen.J.Phys.Chem.B,105(32),7690(2001) |
| [13] | Z.Du,G.Manos,T.J.H.Vlugt,B.Smit.AIChE J.,44(8),1756(1998) |
| [14] | B.Smit,T.L.M.Maesen,Nature,374,42(1995) |
| [15] | R.Krishna,B.Smit,S.Calero,Chem.Soc.Rev.,31(3),185(2002) |
| [16] | CHEN Zhongxiu,LU Jiangang,LIU Xueyuan,DING Tongfu,Chinese J.of Chem.Eng.,8(4),283(2000)(陈钟秀,卢建刚,刘学嫒,丁同富,中国化学工程学报,8(4),283(2000)) |
| [17] | L.Zhan,K.X.Li,R.Zhang,Q.F.Liu,CH.X.Lii,L.CH.Ling,J.Supercrit.Fluid,28(1),37(2004) |
| [18] | Chao Zhang,Xuesheng Lu,Anzhong Gu.Int.J.Hydrogen Energy,29(12),1271(2004) |
| [19] | L.Zhou,Y.Zhou,S.Bai,CH.Lü,B.Yang,J.Colloid Interface Sci.,239(1),33(2001) |
| [20] | M.Li,A.Z.Gu,J.Colloid Interface Sci.,273(2),356(2004) |
| [21] | D.D.Do,H.D.Do,Carbon,41(9),1777(2003) |
| [22] | HU Tao,MA Zhengfei,YAO Huqing,Journal of Natural Gas Chemical Engineering,27(2),36(2002)(胡涛,马正飞,姚虎卿,天然气化工,27(2),36(2002)) |
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