Preparation of Modified Semi-Coke-Supported ZnFe2O4 Sorbent with the Assistance of Ultrasonic Irradiation

被引：12
作者：
Mi, Jie [1 ]
Ren, Jun [1 ]
Zhang, Yongyan [1 ]
机构：
[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China
来源：
ENVIRONMENTAL ENGINEERING SCIENCE | 2012年 / 29卷 / 11期
关键词：
hydrogen sulfide; modified semi-coke; ultrasonic; zinc ferrites; HIGH-TEMPERATURE DESULFURIZATION; HYDROGEN-SULFIDE ADSORPTION; HOT-GAS; ZINC-OXIDE; REGENERABLE SORBENTS; ACTIVATED CARBONS; FERRITE; TITANATE; REMOVAL;
D O I：
10.1089/ees.2011.0434
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Modified semi-coke (MSC) supported ZnFe2O4 was prepared under the condition of ultrasonic irradiation. Performance of the sorbents was tested using a fixed-bed reactor as a hot gas desulfurizer. The MSC support, the mass ratio of zinc ferrites to the support, calcination temperature, and the ultrasonic conditions of power and time all had influences on the structure and the breakthrough behavior of the sorbent. Ultrasonic irradiation can help to make ZnFe2O4 highly dispersed on MSC. ZnFe2O4/MSC had increased porosity and a larger specific surface area compared to unsupported ZnFe2O4. The sorbent exhibited a higher sulfur capacity at the optimum preparing conditions, where the mass ratio of ZnFe2O4 to MSC was 8:10, calcinated at 500 degrees C, and the ultrasonic power and time was 900 W and 1.5 h, respectively.
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收藏
页码：1026 / 1031
页数：6
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