1. 煤热解半焦的活化及其脱硫性能研究.
- Author
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田士东, 张文权, 欧曜文, 李克伦, 杜秉霖, and 苏长罗
- Subjects
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FLUE gas desulfurization , *PORE size distribution , *POROSITY , *SULFUR dioxide , *DESULFURIZATION - Abstract
The desulfurization performances of semi-cokes (XR and ZR) produced by different pyrolysis processes were analyzed. It was found that the breakthrough sulfur dioxide capacity of both XR and ZR were less than 2. 5 mg/g. Therefore, the raw semi-cokes are not suitable for flue gas desulfurization direct. ly. Two kinds of activated semi-coke XC and ZC were prepared by CO2 activation method, and their desulfurization performances and pore structures were investigated. The result shows that activated semi-coke ZC has the best comprehensive performance. The optimized preparation process conditions are activation temperature of 950 °C, activation time of 2 h, CO2 flow rate of 150 mL/min. The comprehensive sulfur dioxide capacity of ZC reaches 70. 9 mg/g. Both XC and ZC have rich microporous structures, and the pore size distribution is mainly concentrated at 1.20 nm and 1. 84 nni. [ABSTRACT FROM AUTHOR]
- Published
- 2022