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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 37, 2015 - Issue 22
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Original Articles

Adsorption of Alkali Metal by High-temperature Acid-treated Coal Char

K. LiuState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an, China;School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, ChinaView further author information
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Y. LiuState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an, China;School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, ChinaCorrespondence[email protected]
View further author information
,
B. ChenState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an, China;School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, ChinaView further author information
&
D. CheState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an, China;School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, ChinaView further author information
Pages 2393-2400 | Published online: 05 Nov 2015
 
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Abstract

Gas phase alkali metal compounds contribute to fouling, slagging, corrosion, and agglomeration problems in a gasifier system. Vapors of alkali metal compounds can be removed by quench of gases and the adsorption of char/ash in a chemical quench process. In the present study, an experimental investigation was performed to describe the properties of alkali vapor adsorption by the high-temperature coal char with NaCl as the alkali metal model compound. The experimental results may be helpful to control the alkali metal corrosion in coal gasifier.

Additional information

Funding

Financial support from the Natural Science Fund of China (50806058), the Fundamental Research Funds for the Central Universities, and the Natural Science Fund of Shaanxi (SJ08E213), and the funds from Key Laboratory of Low-grade Energy Utilization Technologies and Systems (No. LLEUTS-201410) are gratefully acknowledged.

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