Module design of silica membrane reactor for hydrogen production via thermochemical IS process

被引：19
作者：
Myagmarjav, Odtsetseg [1 ]
Tanaka, Nobuyuki [1 ]
Nomura, Mikihiro [2 ]
Kubo, Shinji [1 ]
机构：
[1] JAEA, HTGR Res & Dev Ctr, IS Proc Expt Grp, Narita Cho 4002, Oarai, Ibaraki 3111393, Japan
[2] Shibaura Inst Technol, Dept Appl Chem, Koto Ku, Toyosu 3-7-5, Tokyo 1358548, Japan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 21期
关键词：
Hydrogen production; Thermochemical cycle; IS process; HI decomposition; Membrane reactor; Silica membrane; IODINE-SULFUR PROCESS; SEPARATION; DECOMPOSITION; PERFORMANCE; DEPOSITION; SYSTEM;
D O I：
10.1016/j.ijhydene.2019.02.192
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The potential of the silica membrane reactors for use in the decomposition of hydrogen iodide (HI) was investigated by simulation with the aim of producing CO2-free hydrogen via the thermochemical water-splitting iodine-sulfur process. Simulation model validation was done using the data derived from an experimental membrane reactor. The simulated results showed good agreement with the experimental findings. The important process parameters determining the performance of the membrane reactor used for HI decomposition, namely, reaction temperature, total pressures on both the feed side and the permeate side, and HI feed flow rate were investigated theoritically by means of a simulation. It was found that the conversion of HI decomposition can be improved by up to four times (80%) or greater than the equilibrium conversion (20%) at 400 degrees C by employing a membrane reactor equipped with a tubular silica membrane. The features to design the membrane reactor module for HI decomposition of the thermochemical iodine-sulfur process were discussed under a wide range of operation conditions by evaluating the relationship between HI conversion and number of membrane tubes. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：10207 / 10217
页数：11
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