Hydrogen generation from sodium borohydride solutions for stationary applications

被引：23
|
作者：
Minkina, Valentina G. [1 ]
Shabunya, Stanislav I. [1 ]
Kalinin, Vladimir I. [1 ]
Smirnova, Alevtina [2 ]
机构：
[1] Natl Acad Sci Belarus, Heat & Mass Transfer Inst, 1S5,P Brovki St, Minsk 220072, BELARUS
[2] South Dakota Sch Mines & Technol, 501 East St Joseph St, Rapid City, SD 57701 USA
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 22期
关键词：
Hydrogen generation; Circulation reactor; Sodium borohydride; Sodium metaborate; Hydrolysis; Heterogeneous catalysis; HYDROLYSIS; NABH4; FUEL; CATALYSTS;
D O I：
10.1016/j.ijhydene.2016.03.063
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：
A novel circulation type a hydrogen generator operating on sodium borohydride sodium borate solution has been developed. The major parameters, such as operation temperature, concentration of the sodium borohydride and metaborate, catalytic activity, start up conditions, and removal of NaBO2 as a product of the sodium borohydride hydrolysis have been analyzed. Generation of hydrogen was evaluated for aqueous NaBH4 solutions in the range of 15-23 wt. % NaBH4 in presence of the alumina supported Pt, Pd, Rh and Ni catalysts. The main trends in hydrogen gas generation with respect to the solution temperature and pressure in the reactor were analyzed. The catalytic efficiency and the rate of the hydrogen gas generation (1.5 Nm(3)/h) at the average hydrogen yield of 97-98.5% is sufficient for operation of the PEMFC Nexa(TM) Power module from Ballard. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：9227 / 9233
页数：7
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