Advances in New and Renewable Energy >
Conditioning and Desorption of Pollutants of Syngas from Entrained Flow Gasification of Nitrogen-rich Wood Waste in Molten Salt
Received date: 2015-12-14
Revised date: 2016-01-06
Online published: 2016-02-28
In this work, a molten salt reactor coupling to a 5 kg/h biomass entrained flow reactor was used for conditioning and purification of syngas from nitrogen-rich wood waste. The effects of molten salt temperature and static liquid height on the outlet gas composition and desorption of pollutants of syngas were investigated. The results showed that the concentrations of CO2 and CO decreased sharply after the conditioning in molten salt, while the concentration of H2 rose obviously. When the temperature increased from 380oC to 580oC, the H2/CO ratio reached to 7.3. With the increasing static liquid height, the concentrations of CO2 and CO had a decrease, while the concentrations of H2 rose from 30.1% to 36.8%. The molten salt was an efficient technology for removing the nitrogenous, sulphureous and chlorinated pollutants in syngas obtained from entrained flow gasification of nitrogen-rich wood waste. H2S, SO2, HCl, HCN and NOx had been removed entirely. When temperature reached to 580oC, and static liquid height was 67.5mm, the removal rate of NH3 had reached to 96%.
FENG Yi-peng , WANG Xiao-bo , ZHAO Zeng-li , LI Hai-bin , ZHENG An-qing . Conditioning and Desorption of Pollutants of Syngas from Entrained Flow Gasification of Nitrogen-rich Wood Waste in Molten Salt[J]. Advances in New and Renewable Energy, 2016 , 4(1) : 10 -14 . DOI: 10.3969/j.issn.2095-560X.2016.01.002
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