Release Characteristics of Potassium during Biomass Combustion

被引：3

作者：

Zhang, Feng ^{[1
]}

Hou, Xiuqin ^{[1
]}

Xue, Xingchang ^{[1
]}

Ren, Jiyun ^{[2
]}

Dong, Lingxiao ^{[2
]}

Wei, Xumeng ^{[1
]}

Jian, Lin ^{[1
]}

Deng, Lei ^{[2
]}

机构：

[1] PetroChina Xinjiang Oilfield Co, Supervis Co, Engn Technol Res Inst, Karamay 834000, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China

来源：

ENERGIES | 2023年 / 16卷 / 10期

关键词：

biomass combustion; potassium release; exposure time; oxygen concentration; water washing; GAS-PHASE; ALKALI; TRANSFORMATION; GASIFICATION; SYNGAS; CL; PYROLYSIS; BAGASSE; STEAM; COAL;

D O I：

10.3390/en16104107

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To investigate the release characteristics of potassium during biomass combustion, experimental studies were conducted on three typical biomass fuels in a reactor with a fixed-bed system. The effects of fuel type, combustion temperature, exposure time, oxygen concentration, and water-washing pretreatment were evaluated. The results show that the K release ratio in corn straw increases with the increment in exposure time when the temperature is between 700 and 900 ?. When burned at 900 ? for 40 min, 17.73% of K is released in the volatile combustion stage, while only 2.62% is released in the char combustion stage. When burned at 700-900 ?, the K release ratios in both corn and wheat straw improve slightly with the elevation in oxygen concentration. Water washing significantly reduces the ratio and the amount of K release from corn straw during combustion. The effect of temperature and atmosphere on K release from the water-washed sample is similar to that for the raw sample.

引用

页数：11

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