Elemental mercury reaction chemistry on brominated petroleum cokes

Xiao, Yi1; Pudasainee, Deepak2; Gupta, Rajender2; Xu, Zhenghe2,3; Diao, Yongfa1

2017-11

10.1016/j.carbon.2017.08.031

CARBON   影响因子和分区

0008-6223

1873-3891

Activated carbon injection is a proven technology to capture mercury from flue gases. Due to the high cost and environmental concerns related to its disposal, high efficiency and low-cost sorbents have been studied to replace activated carbon. In this study, the petroleum coke obtained from two Canadian petroleum refineries, with high inherent sulfur content and impregnated with bromine, was compared to investigate elemental mercury capture mechanisms. These carbon-based sorbents showed excellent mercury removal efficiency at 100 and 200 degrees C. Elemental analysis, Brunauer-Emmett-Teller surface area, pore volume and thermogravimetric analysis were used to characterize the sorbents. X-ray photoelectron spectroscopy was used to examine the significant changes in chemistry and oxidation states of Br, S and Hg on the sorbent surface. More active mercury binding sites were created on brominated petroleum cokes after the chemical-mechanical bromination process. The inherent thiophene and organic sulfide in petroleum coke played a dominant role in mercury capture. (C) 2017 Published by Elsevier Ltd.

SCI ; EI

英语

通讯

National Natural Science Foundation of China[U1261204]

Chemistry ; Materials Science

Chemistry, Physical ; Materials Science, Multidisciplinary

WOS:000412118200012

PERGAMON-ELSEVIER SCIENCE LTD

20173504093311

Activated carbon ; Binding sites ; Complexation ; Efficiency ; Mercury (metal) ; Sorbents ; Sulfur compounds ; Thermogravimetric analysis ; X ray photoelectron spectroscopy

Petroleum Products:513.3 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Chemistry:801 ; Biochemistry:801.2 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Production Engineering:913.1

CHEMISTRY

Web of Science

1.Donghua Univ, Sch Environm Sci & Engn, 2999 North Renmin Rd, Shanghai 201620, Peoples R China
2.Univ Alberta, Dept Chem & Mat Engn, 9211 116 St, Edmonton, AB T6G 1H9, Canada
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, 1088 Xueyuan Blvd, Shenzhen, Peoples R China

Xiao, Yi,Pudasainee, Deepak,Gupta, Rajender,et al. Elemental mercury reaction chemistry on brominated petroleum cokes[J]. CARBON,2017,124:89-96.

Xiao, Yi,Pudasainee, Deepak,Gupta, Rajender,Xu, Zhenghe,&Diao, Yongfa.(2017).Elemental mercury reaction chemistry on brominated petroleum cokes.CARBON,124,89-96.

Xiao, Yi,et al."Elemental mercury reaction chemistry on brominated petroleum cokes".CARBON 124(2017):89-96.