Bromination of petroleum coke for elemental mercury capture

被引：50

作者：

Xiao, Yi ^{[1
]}

Pudasainee, Deepak ^{[2
]}

Gupta, Rajender ^{[2
]}

Xu, Zhenghe ^{[2
,3
]}

Diao, Yongfa ^{[1
]}

机构：

[1] Donghua Univ, Sch Environm Sci & Engn, 2999 North Renmin Rd, Shanghai 201620, Peoples R China

[2] Univ Alberta, Dept Chem & Mat Engn, 9214 116 St, Edmonton, AB T6G 1H9, Canada

[3] Tsinghua Univ, Inst Nucl & New Energy Technol, 30 Shuangqing Rd, Beijing 100084, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2017年 / 336卷

基金：

加拿大自然科学与工程研究理事会; 中国国家自然科学基金;

关键词：

Petroleum coke; Mercury emission control; Bromine; Sulfur; Power plant; ACTIVATED CARBON SORBENTS; FLUE-GASES; REMOVAL; SULFUR; SURFACE; ABSORPTION; VIRGIN; ASH;

D O I：

10.1016/j.jhazmat.2017.04.040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Activated carbon injection has been proven to be an effective control technology of mercury emission from coal-fired power plants. Petroleum coke is a waste by-product of petroleum refining with large quantities readily available around the world. Due to its high inherent sulfur content, petroleum coke is an attractive raw material for developing mercury capture sorbent, converting a waste material to a value-added product of important environmental applications. In this study, petroleum coke was brominated by chemical-mechanical bromination. The brominated petroleum coke was characterized for thermal stability, mercury capture capacity, and potential mercury and bromine leaching hazards. Bromine loaded on the petroleum coke was found to be stable up to 200 degrees C. Even after treating the brominated petroleum coke for 30 min at 600 degrees C, 1/3 bromine remained on the solid. The sorbent from bromination of sulfur-containing petroleum coke was shown to be a promising alternative to commercial brominated activated carbon for capture of elemental mercury from coal combustion flue gases. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：232 / 239

页数：8

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