Please wait a minute...
Acta Physico-Chimica Sinica  2001, Vol. 17 Issue (10): 940-943    DOI: 10.3866/PKU.WHXB20011015
Determination of Optimum Pressure for Supercritical Methane Adsorbed in Nano-material
Cao Da-Peng;Wang Wen-Chuan;Shen Zhi-Gang;Chen Jian-Feng
P.O. Box 100, College of Chemical Engineering;Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029
Download:   PDF(1609KB) Export: BibTeX | EndNote (RIS)      

Abstract  A grand canonical Monte Carlo(GCMC) method is carried out to investigate adsorption of supercritical methane in layered pillared nanomaterial. In the simulation, layered pillared nanomaterial is modeled by the approach of Yi et al[6,7]with a uniform distribution of pillars. Steele′s 1043 potential is used for representing the interaction between a LennardJones(LJ) methane molecule and a layered wall in the GCMC simulation. The sitesite interaction is also used for calculating the interaction between methane of LJ fluid and pillars. The classical excess adsorption isotherms of methane with three different pore widths, are obtained at two supercritical temperatures T=207.3 and 237.0 K. The optimum adsorption pressures,corresponding to the greatest excess adsorption, are 2.4, 3.1 and 3.7 MPa in the pore widths 1.02, 1.70 and 2.38 nm at temperature 207.3 K, respectively. It can be found that the optimum adsorption pressures increase with the increase of temperature under otherwise identical conditions,which are 2.9, 3.6 and 4.9 MPa, respectively,corresponding to pore widths of 1.02, 1.70 and 2.38 nm at T=237.0 K. Simulation indicates that the GCMC method is a useful tool for providing the optimum adsorption pressure of supercritical methane in layered pillared nanomaterials.

Key wordsSupercriticality      Methane      Adsorption      Layered pillared nanomaterial       Grand canonical Monte Carlo simulation     
Received: 26 March 2001      Published: 15 October 2001
Corresponding Authors: Cao Da-Peng     E-mail:
Cite this article:

Cao Da-Peng;Wang Wen-Chuan;Shen Zhi-Gang;Chen Jian-Feng. Determination of Optimum Pressure for Supercritical Methane Adsorbed in Nano-material. Acta Physico-Chimica Sinica, 2001, 17(10): 940-943.

URL:     OR

[1] WU Xuanjun, LI Lei, PENG Liang, WANG Yetong, CAI Weiquan. Effect of Coordinatively Unsaturated Metal Sites in Porous Aromatic Frameworks on Hydrogen Storage Capacity[J]. Acta Physico-Chimica Sinica, 2018, 34(3): 286-295.
[2] MA Qiang, HU Yongsheng, LI Hong, CHEN Liquan, HUANG Xuejie, ZHOU Zhibin. An Sodium Bis (trifluoromethanesulfonyl) imide-based Polymer Electrolyte for Solid-State Sodium Batteries[J]. Acta Physico-Chimica Sinica, 2018, 34(2): 213-218.
[3] ZHANG Chen-Hui, ZHAO Xin, LEI Jin-Mei, MA Yue, DU Feng-Pei. Wettability of Triton X-100 on Wheat (Triticum aestivum) Leaf Surfaces with Respect to Developmental Changes[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1846-1854.
[4] YAO Chan, LI Guo-Yan, XU Yan-Hong. Carboxyl-Enriched Conjugated Microporous Polymers: Impact of Building Blocks on Porosity and Gas Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1898-1904.
[5] ZHENG Fang-Fang, LI Qian, ZHANG Hong, WENG Wei-Zheng, YI Xiao-Dong, ZHENG Yan-Ping, HUANG Chuan-Jing, WAN Hui-Lin. Preparation and Characterization of Sinter-Resistant Rh-Sm2O3/SiO2 Catalyst and Its Performance for Partial Oxidation of Methane to Syngas[J]. Acta Physico-Chimica Sinica, 2017, 33(8): 1689-1698.
[6] LIU Jing-Wei, YANG Na-Ting, ZHU Yan. Pd/Co3O4 Nanoparticles Inlaid in Alkaline Al2O3 Nanosheets as an Efficient Catalyst for Catalytic Oxidation of Methane[J]. Acta Physico-Chimica Sinica, 2017, 33(7): 1453-1461.
[7] MO Zhou-Sheng, QIN Yu-Cai, ZHANG Xiao-Tong, DUAN Lin-Hai, SONG Li-Juan. Influencing Mechanism of Cyclohexene on Thiophene Adsorption over CuY Zeolites[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1236-1241.
[8] DAI Wei-Guo, HE Dan-Nong. Selective Photoelectrochemical Oxidation of Chiral Ibuprofen Enantiomers[J]. Acta Physico-Chimica Sinica, 2017, 33(5): 960-967.
[9] HE Lei, ZHANG Xiang-Qian, LU An-Hui. Two-Dimensional Carbon-Based Porous Materials: Synthesis and Applications[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 709-728.
[10] CHENG Fang, WANG Han-Qi, XU Kuang, HE Wei. Preparation and Characterization of Dithiocarbamate Based Carbohydrate Chips[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 426-434.
[11] ZHANG Tao-Na, XU Xue-Wen, DONG Liang, TAN Zhao-Yi, LIU Chun-Li. Molecular Dynamics Simulations of Uranyl Species Adsorption and Diffusion Behavior on Pyrophyllite at Different Temperatures[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2013-2021.
[12] CHEN Jun-Jun, SHI Cheng-Wu, ZHANG Zheng-Guo, XIAO Guan-Nan, SHAO Zhang-Peng, LI Nan-Nan. 4.81%-Efficiency Solid-State Quantum-Dot Sensitized Solar Cells Based on Compact PbS Quantum-Dot Thin Films and TiO2 Nanorod Arrays[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2029-2034.
[13] ZHANG Shao-Zheng, LIU Jia, XIE Yan, LU Yin-Ji, LI Lin, Lü Liang, YANG Jian-Hui, WEI Shi-Hao. First-Principle Study of Hydrogen Evolution Activity for Two-dimensional M2XO2-2x(OH)2x (M=Ti, V; X=C, N)[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2022-2028.
[14] LI Yan-Ting, LIU Xin-Min, TIAN Rui, DING Wu-Quan, XIU Wei-Ning, TANG Ling-Ling, ZHANG Jing, LI Hang. An Approach to Estimate the Activation Energy of Cation Exchange Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 1998-2003.
[15] LI Kui, ZHAO Yao-Lin, DENG Jia, HE Chao-Hui, DING Shu-Jiang, SHI Wei-Qun. Adsorption of Radioiodine on Cu2O Surfaces: a First-Principles Density Functional Study[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2264-2270.