Effect on Combustion Properties of Coal Treated by Microwave Irradiation Combined with Sodium Hydroxide Solution

被引：5

作者：

Cai, Chuanchuan ^{[1
,2
]}

Ge, Tao ^{[2
]}

Zhang, Mingxu ^{[2
]}

Zhao, Yuqi ^{[2
]}

Wu, Chunhui ^{[2
]}

Han, Jiaxuan ^{[2
]}

机构：

[1] State Key Lab Min Response & Disaster Prevent & C, Huainan 232001, Peoples R China

[2] Anhui Univ Sci & Technol, Dept Mat Sci & Engn, Huainan 232001, Peoples R China

来源：

PROCESSES | 2021年 / 9卷 / 08期

基金：

安徽省自然科学基金; 中国国家自然科学基金; 中国博士后科学基金;

关键词：

combustion properties; microwave irradiation; sodium hydroxide solution; TGA; FTIR; SULFUR; DESULFURIZATION; BIOMASS; TEMPERATURE; REMOVAL; LIGNITE; COST; OIL;

D O I：

10.3390/pr9081284

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A Kentucky coal sample treated by microwave irradiation (MI) combined with sodium hydroxide solution was performed using a thermo-gravimetric analyzer (TGA) coupled to a Fourier transform infrared spectrometer (FTIR). The combustion properties and structural changes of coal under different conditions were investigated and compared. The results show that the desulfurization efficiency of coal samples increases with the increase of sodium hydroxide solution concentration. Microwave irradiation can significantly improve the desulfurization efficiency. The whole combustion process of the treated coal sample becomes longer; the combustion performance becomes worse. The total mass loss of coal treated samples is significantly reduced, and the temperature corresponding to the maximum weight loss rate decreases with the increase of sodium hydroxide concentration. The infrared spectra of the coal samples treated with microwave and 5% sodium hydroxide solution were basically unchanged, while the O containing groups and aromatic C-H groups increased in the coal samples treated with 20% sodium hydroxide solution.

引用

页数：9

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