Modeling on Hydrogen Absorption in Tetrahydrofuran Hydrate

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yoshiro Inoue¹  Keishi Yamamoto¹  Takaaki Tsuda¹  Shunsuke Hashimoto¹ 

[1] Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University

关键词: Gas Hydrate;    Hydrogen Storage;    Storage Capacity;    Kinetic Model;    Tetrahydrofuran;   

DOI  :  10.1252/jcej.11we227

来源: Maruzen Company Ltd

【 摘 要 】

References(34)Cited-By(2)The storage rate and amount of hydrogen in tetrahydrofuran hydrate were investigated by means of pressure–volume–temperature measurement under three temperature conditions. The absorption process of hydrogen in tetrahydrofuran hydrate was expressed as a dynamical model based on classical shrinking core model, which included two steps: hydrogen inclusion (containing adsorption, entrapment, and delocalization processes) at the surface of tetrahydrofuran hydrate and hydrogen diffusion through the formed layer of hydrogen+tetrahydrofuran mixed hydrate. The rate constant of surface reaction and/or diffusion coefficient of hydrogen depended on the porosity of small cages in tetrahydrofuran hydrate at equilibrium state. The storage amount of hydrogen at all temperatures would reach the maximum value of 2.0 mol (hydrogen)/mol (tetrahydrofuran) at a certain pressure. At the same pressure, the storage amount of hydrogen increases as the temperature decreases.

【 授权许可】

Unknown