Performance of Sulfide-Driven Fuel Cell Aerated by Venturi Tube Ejector

被引:1
|
作者
Beschkov, Venko N. [1 ]
Razkazova-Velkova, Elena N. [1 ]
Martinov, Martin S. [1 ]
Stefanov, Stefan M. [1 ]
机构
[1] Bulgarian Acad Sci, Inst Chem Engn, Sofia 1113, Bulgaria
关键词
sulfide redox processes; fuel cell; aeration; Venturi tube; HYDROGEN-SULFIDE; BLACK-SEA; ELECTROCHEMICAL REMOVAL; ELECTRICITY PRODUCTION; SULFUR; REDUCTION; RECOVERY; WATER; IONS;
D O I
10.3390/catal11060694
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
Hydrogen sulfide is frequently met in natural waters, like mineral springs, but mostly it is found in marine water with low renewal rate. The Black Sea has extremely high hydrogen sulfide content. It can be utilized in different ways, but the most promising one is direct conversion into electricity. This result can be attained by a sulfide-driven fuel cell (SDFC), converting sulfide to sulfate thus releasing electric energy up to 24 GJ/t. One of the most important problems is the mass transfer limitation on oxygen transfer in the cathode space of the fuel cell. This problem can be solved using a gas diffusion electrode or highly efficient saturation by oxygen in an ejector of the Venturi tube type. This work presents experimental data in laboratory-scale SDFC for sulfide conversion into sulfate, sulfite and polysulfide releasing different amounts of electric energy. Two types of aeration are tested: direct air blow and Venturi-tube ejector. Besides pure graphite, two catalysts, i.e., cobalt spinel and zirconia-doped graphite were tested as anodes. Experiments were carried out at initial sulfide concentrations from 50 to 300 mg/L. Sulfate, sulfite and thiosulfate ions were detected in the outlet solutions from the fuel cell. The electrochemical results show good agreement with the chemical analyses. Most of the results show attained high efficiencies of the fuel cell, i.e., up to 80%. The practical applications of this method can be extended for other purposes, like treatment of polluted water together with utilization as energy.
引用
收藏
页数:14
相关论文
共 50 条
  • [21] Data-driven modeling and monitoring of fuel cell performance
    Sun, Ke
    Esnaola, Inaki
    Okorie, Okechukwu
    Charnley, Fiona
    Moreno, Mariale
    Tiwari, Ashutosh
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (66) : 33206 - 33217
  • [22] Comparison of a fuel-driven and steam-driven ejector in solid oxide fuel cell systems with anode off-gas recirculation: Part-load behavior
    Engelbracht, Maximilian
    Peters, Roland
    Blum, Ludger
    Stolten, Detlef
    JOURNAL OF POWER SOURCES, 2015, 277 : 251 - 260
  • [23] Performance evaluation of an integrated proton exchange membrane fuel cell system with ejector absorption refrigeration cycle
    Toghyani, S.
    Afshari, E.
    Baniasadi, E.
    ENERGY CONVERSION AND MANAGEMENT, 2019, 185 : 666 - 677
  • [24] High performance ejector enhanced by heat exchanger in solid oxide fuel cell anode recirculation system
    Ping, Zhuochen
    Chen, Bin
    Wang, Chen
    Xu, Zengshi
    Wang, Lei
    APPLIED THERMAL ENGINEERING, 2023, 221
  • [25] Performance of direct alkaline sulfide fuel cell without sulfur deposition on anode
    Kim, Kwiyong
    Han, Jong-In
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (13) : 7142 - 7146
  • [26] Effect of anodic pH microenvironment on microbial fuel cell (MFC) performance in concurrence with aerated and ferricyanide catholytes
    Raghavulu, S. Veer
    Mohan, S. Venkata
    Goud, R. Kannaiah
    Sarma, P. N.
    ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (02) : 371 - 375
  • [27] Anode gas recirculation behavior of a fuel ejector in hybrid solid oxide fuel cell systems: Performance evaluation in three operational modes
    Zhu, Yinhai
    Cai, Wenjian
    Li, Yanzhong
    Wen, Changyun
    JOURNAL OF POWER SOURCES, 2008, 185 (02) : 1122 - 1130
  • [28] Pt Tube-in-Tube Arrays as High-Performance Electrocatalysts for Direct Methanol Fuel Cell
    Li Qi
    Xu Han
    Tong Yexiang
    Li Gaoren
    ACTA CHIMICA SINICA, 2017, 75 (02) : 193 - 198
  • [29] Data driven models for a PEM fuel cell stack performance prediction
    Napoli, G.
    Ferraro, M.
    Sergi, F.
    Brunaccini, G.
    Antonucci, V.
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (26) : 11628 - 11638
  • [30] Evaluation of solid oxide fuel cell performance with anode recirculation using variable flow ejector at rated conditions
    Baba, Soumei
    Takahashi, Sanyo
    Kobayashi, Nariyoshi
    Hirano, Satoshi
    MECHANICAL ENGINEERING JOURNAL, 2015, 2 (04):