Study on migration behavior of alkali metals during co-gasification of corn stalk and PE

YANG Tian-hua; XIAO Lei; KAI Xing-ping; DING Yi; CHEN Zhi-min; LI Run-dong

Volume 41 Issue 06

Jun. 2013

Turn off MathJax

Article Contents

Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(06): 673-678

YANG Tian-hua, XIAO Lei, KAI Xing-ping, DING Yi, CHEN Zhi-min, LI Run-dong. Study on migration behavior of alkali metals during co-gasification of corn stalk and PE[J]. Journal of Fuel Chemistry and Technology, 2013, 41(06): 673-678.

Citation:

YANG Tian-hua, XIAO Lei, KAI Xing-ping, DING Yi, CHEN Zhi-min, LI Run-dong. Study on migration behavior of alkali metals during co-gasification of corn stalk and PE[J]. Journal of Fuel Chemistry and Technology, 2013, 41(06): 673-678.

Citation:

PDF( 1765 KB)

Study on migration behavior of alkali metals during co-gasification of corn stalk and PE

Institute of Clean Energy and Environmental Engineering, Shenyang Aerospace University, Shenyang 110036, China

Received Date: 2012-11-26
Rev Recd Date: 2013-01-16
Publish Date: 2013-06-30

Abstract

Abstract

The migration behavior of alkali metals during co-gasification of cornstalk and PE in a fixed bed at different temperatures was studied on the thermodynamic equilibrium calculation, the X-ray power diffraction and scanning electron microscope/energy dispersive spectrometer. The results indicat that the alkali chlorides (KCl、K₂Cl₂、NaCl)are the main components in gaseous. There is a large amounts of C and H in the fules with the mixed of plastic PE. The H makes the Cl prefer HCl to KCl, meanwhile, the release radio of K is lower than the cornstalk gasification cause of the C easily reacted with K than Na. Alkali metal compounds in ashes are mainly in the forms of KCl, NaCl, K₂SO₄, KAlSi₃O₈, KAlSiO₄, NaAlSi₃O₈, NaAlSiO₄. The KCl,NaCl begin to release when the reacting temperature above 800℃ and most of K,Na,Cl are easily deposited on the edge of the hole.
- corn stalk,
- PE,
- co-gasification,
- alkali metal

FullText(HTML)

References(11)

References

GARCIA-BACAICOA P, MASTRAL J F, CEAMANOS J, BERRUECO C, SERRANO S. Gasification of biomass/high density polyethylene mixtures in a downdraft gasifier[J]. Bioresour Technol, 2008, 99(13): 5485-5491.

AHMED I I, NIPATTUMMAKUL N, GUPTA A K. Characteristics of syngas from co-gasification of polyethylene and woodchips applied[J]. Appl Energy, 2011, 88(1): 165-174.

董长青, 杨勇平, 倪景峰, 金保升. 木屑和聚乙烯流化床共气化实验研究[J]. 中国电机工程学报, 2007, 27(5): 55-60. (DONG Chang-qing, YANG Yong-ping, NI Jing-feng, JIN Bao-sheng. Experimental research on the co-gasification of sawdust and polyethylene in a fluidized bed[J]. Proceedings of the Chinese Society for Electrical Engineering, 2007, 27(5): 55-60.)

OHMAN M, POMMER L, NORDIN A. Bed agglomeration characteristics and mechanisms during gasification and combustion of biomass fuels[J]. Energy Fuels, 2005, 19(4): 1742-1748.

GILBE C, OHMAN M, LINDSTROM E, BOSTROM D, BACKMAN R, SAMUELSSON R, BURVALLL J. Slagging characteristics during residential combustion of biomass pellets[J]. Energy Fuels, 2008, 22(5): 3536-3543.

HUANG Y Q, YIN X L, WU C Z, WANG C W, XIE J J, ZHOU Z Q, MA L L, LI H B. Effects of metal catalysts on CO₂ gasification reactivity of biomass char[J]. Biotechnol Adv, 2009, 27(5): 568-572.

KAJITA M, KIMURA T, NORINAGA K, LI C Z, HAYASHI J. Catalytic and noncatalytic mechanisms in steam gasification of char from the pyrolysis of biomass[J]. Energy Fuels, 2010, 24(1): 108-116.

MITSUOKA K, HAYASHI S, AMANO H, KAYAHARA K, SASAOAKA E, UDDIN M A. Gasification of woody biomass char with CO₂: The catalytic effects of K and Ca species on char gasification reactivity[J]. Fuel Process Technol, 2011, 92(1): 26-31.

EOM I, KIM J, KIM T, LEE S, CHOI D, CHOI I, CHOI J. Effect of essential inorganic metals on primary thermal degradation of lignocellulosic biomass[J]. Bioresour Technol, 2012, 104: 687-694.

HIROHATA O, WAKABAYASHI T, TASAKA K, FUSHIMI C, FURUSAWA T, KUCHONTHARA P, TSUTSUMI A. Release behavior of tar and alkali and alkaline earth metals during biomass steam gasification[J]. Energy Fuels, 2008, 22(6): 4235-4239.

陈安和, 杨学民, 林伟刚. 生物质热解和气化过程Cl及碱金属逸出行为的化学热力学平衡分析[J]. 燃料化学学报, 2007, 35(5): 539-547. (CHEN An-he, YANG Xue-min, LIN Wei-gang. Release characteristics of chlorine and alkali metals during pyrolysis and gasification of biomass by thermodynamical equilibrium analysis[J]. Journal of Fuel Chemistry and Technology, 2007, 35(5): 539-547.)

Relative Articles

Supplements(0)

Cited By

Proportional views