Abstract
The permeation properties ofn-butane,i-butane andn-butane/i-butane mixture (n-butane 24.3% (molar ratio),i-butane 75.7%) through a tubular silicalite-1 zeolite membrane were studied at 298 and 473 K respectively. The permselectivities ofn-butane andi-butane under pressure difference of 0.06 MPa at 298 and 473 K were 16.3 and 7.4 respectively. The separation factors ofn-butane/i-butane mixture were between 2.0 and 2.5 at 298 and 473 K. At 298 K, the permeances ofn-butane in the mixture were lower than those of single component while the permeances ofi-butane in the mixture were almost the same as those of single component. At 473 K, the permeances ofn-butane andi-butane in the mxiture were decreased compared with those of the single component, and the permeance ofn-butane decreased more rapidly than that ofi-butane.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Jia, L. S., The production process of the ester of the gasoline additive,Petrochemical Technology, 1995, 24(1): 57.
Sano, T., Kiyozumi, Y., Mizukami, F.et al., Preparation and characterization of ZSM-5 zeolite film,Zeolites, 1991, 11: 842.
Cheng, M. J., Yang, W. S., Li, X. S.et al., The study ofin situ synthesis of zeolite membranes,J. Chinese Catal., 1995, 16(2): 89.
Geus, E. R., den Exter, M. J., van Bekkum, H., Synthesis and characterization of zeolite (MFI) membranes on porous ceramic supports,J. Chem. Soc., Faraday Trans., 1992, 88(20): 3101.
Kita, H., Horii, K., Ohtoshi, Y.et al., Synthesis of a zeolite NaA membrane for pervaporation of water/organic liquid mixture,J. Mat. Sci. Lett., 1995, 14: 206.
Yan, Y. S., Davis, M. E., Gavalas, G. R., Preparation of zeolite ZSM-5 membranes byin-situ crystallization on porous α-Al2O3,Ind. Eng. Chem. Res., 1995, 34: 1652.
Vroon, Z. A. E. P., Keizer, K., Gilde, M. J.et al., Transport properties of alkanes through ceramic thin zeoltie MFI membrane,J. Membr. Sci., 1996, 113: 293.
Bakker, W. J. W., Kapteijn, F., Poppe, J.et al., Permeation characteristics of a metal-supported silicalite zeolite membrane,J. Membr. Sci., 1996, 117: 57.
Xu, X. C., Cheng, M. J., Yang, W. S.et al., Synthesis and gas permeation properties of silicalite-1 zeoltie membrane,Science in China, Ser. B, 1998, 41: 325.
Shah, D. B., Chokchal-acha, S., Hayhurst, D. T., Measurements of transport rates of C4 hydrocarbons across a single silicalite membrane,J. Chem. Soc., Faraday Trans., 1993, 89(16): 3161.
Author information
Authors and Affiliations
About this article
Cite this article
Xu, X., Cheng, M., Yang, W. et al. Separation of butane isomer by tubular silicalite-1 zeolite membrane. Chin.Sci.Bull. 43, 2074–2078 (1998). https://doi.org/10.1007/BF03183509
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03183509