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(6): 673-678. shu

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

1.
Institute of Clean Energy and Environmental Engineering, Shenyang Aerospace University, Shenyang 110036, China

Corresponding author: YANG Tian-hua,
Received Date: 26 November 2012
Available Online: 16 January 2013
Fund Project: 国家重点基础研究发展规划(973计划,2011CB201500) (973计划,2011CB201500)国家自然科学基金(51176130) (51176130)辽宁创新团队项目(2007T141)。 (2007T141)

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
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沈阳化工大学材料科学与工程学院沈阳 110142