Citation: WU Hong-xiang, LIU An-qi, LI Lan-lan, WANG Xiao-bo, ZHAO Zeng-li, LI Hai-bin, HE Fang. Effects of potassium on pyrolysis characteristics of pine[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(4): 420-426. shu

Effects of potassium on pyrolysis characteristics of pine

1.
Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energye, CAS, The New and Renewable Energy Key Laboratory of Guangdong Province, Guangzhou 510640, China

Corresponding author: ZHAO Zeng-li,
Received Date: 4 November 2013
Available Online: 20 December 2013
Fund Project: 国家重点基础研究发展规划(973计划,2011CB201500) (973计划,2011CB201500)广东省科技计划(2012B050500007)。 (2012B050500007)

Pine loaded K₂CO₃ were pyrolysed by tubular furnace. The experiment of pyrolysis vapor of pine passed through sand mixed with K₂CO₃ or char added K₂CO₃ were also performed to simulated the effects of potassium on vapor. The results indicated that K could catalyze pyrolysis process, increase the char yields and decrease CO yields markedly. K could increase the gas yield in low temperature while decrease it in higher temperature. The pyrolysis vapor could decompose when pass through K, which lead to lower liquid yield and higher CO, CO₂, H₂ yield. Char of pine also could catalyze tar cracking, increase H₂, CO₂ and decrease CO, CH₄, C₂ yields in gas. Char added K was favor to the cracking of tar and the reaction between gas and char. Effects of potassium on biomass pyrolysis characteristics was achieved by catalyzing the primary pyrolysis and the reaction of the pyrolysis vapor.
- pine,
- pyrolysis,
- potassium,
- catalysis
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沈阳化工大学材料科学与工程学院沈阳 110142