Microwave plasma application in decomposition and steam reforming of model tar compounds

被引:86
作者
Jamroz, P. [1 ]
Kordylewski, W. [2 ]
Wnukowski, M. [2 ]
机构
[1] Wroclaw Univ Sci & Technol, Fac Chem, Wroclaw, Poland
[2] Wroclaw Univ Sci & Technol, Fac Mech & Power Engn, Wroclaw, Poland
关键词
Microwave plasma; Tar; Biomass gasification; Benzene; BIOMASS GASIFICATION; MORPHOLOGICAL CHARACTERIZATION; HYDROGEN-PRODUCTION; LOW-TEMPERATURE; FUEL GAS; PYROLYSIS; TOLUENE; DESTRUCTION; NAPHTHALENE; BENZENE;
D O I
10.1016/j.fuproc.2017.09.009
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Plasma methods can be considered as a novel and efficient way of tar disposal from process gases. In this lab scale study, a microwave plasma reactor has been developed and tested for the conversion of tar surrogates, i.e. benzene, toluene, and 1-methylnaphthalene, in a nitrogen stream. The effect of tar concentration, gas flow rate and steam addition on conversion effectiveness has been analyzed. It was demonstrated that the process efficiency can be as high as c.a. 98% with the initial tar concentration of 10 g/Nm(3), the nitrogen gas flow rate being 30 L/min and the steam-to-carbon ratio equal to 3. The conversion efficiency decreased with increasing tar concentration and gas flow rate. At the same time, the increase in the steam addition significantly enhanced the conversion rate. It has been revealed that the main products of the tar model compounds plasma conversion were: acetylene, soot, benzene derivatives (e.g. benzonitrile, phenylethyne, naphthalene and others) and cyanides. Their amounts were significantly decreased in favor of CO, CO2, and H-3 by steam addition. Additionally, optical emission spectroscopy has been applied for the purpose of microwave plasma diagnostic and identification of the reactive species in the plasma zone. Moreover, a quantitative analysis of the main gaseous and aromatic byproducts has been conducted by means of gas chromatography.
引用
收藏
页码:1 / 14
页数:14
相关论文
共 66 条
[1]   Review of catalysts for tar elimination in Biomass gasification processes [J].
Abu El-Rub, Z ;
Bramer, EA ;
Brem, G .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2004, 43 (22) :6911-6919
[2]   Tar reduction in biomass producer gas via mechanical, catalytic and thermal methods: A review [J].
Anis, Samsudin ;
Zainal, Z. A. .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2011, 15 (05) :2355-2377
[3]   Biomass gasification gas cleaning for downstream applications: A comparative critical review [J].
Asadullah, Mohammad .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2014, 40 :118-132
[4]   Laboratory investigation on the formation of unsaturated nitriles in Titan's atmosphere [J].
Balucani, N ;
Asvany, O ;
Osamura, Y ;
Huang, LCL ;
Lee, YT ;
Kaiser, RI .
PLANETARY AND SPACE SCIENCE, 2000, 48 (05) :447-462
[5]  
Basu P., 2012, Biomass Gasification and Pyrolysis: Practical design and theory, VVolume 5
[6]  
Boerrigter H., 2004, 2 WORLD C TECHN EXH, P10
[7]  
Boerrigter H., 2005, OLGA TAR REMOVAL TEC
[8]   PAH formation in acetylene-benzene pyrolysis [J].
Böhm, H ;
Jander, H .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1999, 1 (16) :3775-3781
[9]   On the kinetics of the C5H5 + C5H5 reaction [J].
Cavallotti, Carlo ;
Polino, Daniela .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2013, 34 :557-564
[10]   Decomposition of benzene as a surrogate tar in a gliding Arc plasma [J].
Chun, Young Nam ;
Kim, Seong Cheon ;
Yoshikawa, Kunio .
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, 2013, 32 (03) :837-845