Vapor-phase elemental mercury adsorption by Ca(OH)2 impregnated with MnO2 and Ag in fixed-bed system

2009 ◽  
Vol 5 (3) ◽  
pp. 479-487 ◽  
Author(s):  
Y. J. Wang ◽  
Y. F. Duan ◽  
Z. J. Huang ◽  
S. L. Meng ◽  
L. G. Yang ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Fixed Bed ◽  
Elemental Mercury ◽  
Mercury Adsorption ◽  
Fixed Bed System

Removal of Gas-Phase Elemental Mercury by Bromine-Impregnated Activated Carbon

2011 ◽  
Vol 356-360 ◽  
pp. 1660-1663 ◽  
Author(s):  
Jiang Wu ◽  
Jie He Chen ◽  
Shuai Bo Zhang ◽  
Ping He ◽  
Ji Hui Fang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Gas Phase ◽  
Removal Efficiency ◽  
Activated Carbons ◽  
Physical Adsorption ◽  
Fixed Bed ◽  
Elemental Mercury ◽  
Adsorption Ability ◽  
Bromine Concentration ◽  
Fixed Bed System

Br-impregnated activated carbon for gas-phase elemental mercury adsorption experiments were carried out at a fixed-bed system to get the suitable mass fraction of KBr impregnation solution. Hg removal efficiency of 1% wt KBr-ACs was 69.0%, while that of 10% wt KBr-ACs was 57.9%. Both of them were higher than that of the raw activated carbon, 42.2%. The removal efficiency of Hg0 was not proportional to bromine concentration. Under 80-180°C, Hg removal efficiency of 1% wt KBr-ACs were 68.3%-71.8%, and at 140°C it reached the highest due to the increasing chemical adsorption ability of the functional groups which was on the surfaces of activated carbons by impregnating. At 160°C, Hg removal efficiency was lower than that at 140°C due to desorption making physical adsorption decrease, so that the total adsorption decreased.

Kinetic studies of elemental mercury adsorption in activated carbon fixed bed reactor

2008 ◽  
Vol 158 (1) ◽  
pp. 1-13 ◽  
Author(s):  
G. Skodras ◽  
Ir. Diamantopoulou ◽  
G. Pantoleontos ◽  
G.P. Sakellaropoulos
Keyword(s):  
Activated Carbon ◽  
Fixed Bed ◽  
Kinetic Studies ◽  
Elemental Mercury ◽  
Fixed Bed Reactor ◽  
Mercury Adsorption

Vapor-Phase Elemental Mercury Adsorption by Novel Modified Vermiculite Adsorbents Impregnated with Different Agents

2011 ◽  
Vol 287-290 ◽  
pp. 1753-1760
Author(s):  
Li Ping Ma ◽  
Jing Ping Liu ◽  
Jian Ying Wang ◽  
Ke Diao He ◽  
Xia Cui
Keyword(s):  
Vapor Phase ◽  
Active Carbon ◽  
Elemental Mercury ◽  
Packed Bed ◽  
Laboratory Scale ◽  
Packed Bed Reactor ◽  
The Novel ◽  
Mercury Adsorption ◽  
Increasing Temperature ◽  
Adsorption Capability

The novel modified vermiculite adsorbents have been made impregnated with sulfate, HCl and CuCl2. A laboratory-scale packed-bed reactor system was used to screen these adsorbents for their capability to remove elemental mercury. The affection of temperature on adsorption was also detected. Results showed that the adsorption capability for elemental mercury was improved after treated by different modified agents than the natural vermiculite. Comparing with active carbon, the adsorption capability of vermiculite adsorbents modified by sulfate and HCl were less improved, and it is almost increased 40 times than that of active carbon when using the CuCl2modified vermiculite adsorbent at the same condition. Increasing temperature is active for the adsorption capability for elemental mercury by sulfate and HCl modified vermiculite adsorbents.

Metal–organic frameworks for the removal of the emerging contaminant atenolol under real conditions

2021 ◽  
Vol 50 (7) ◽  
pp. 2493-2500
Author(s):  
Sara Rojas ◽  
Jorge A. R. Navarro ◽  
Patricia Horcajada
Keyword(s):  
Continuous Flow ◽  
Metal Organic Frameworks ◽  
Fixed Bed ◽  
Emerging Contaminant ◽  
Flow Conditions ◽  
Metal Organic ◽  
Fixed Bed System

A defective Metal-Organic Frameworks as an improved material for the construction of a fixed-bed system working under continuous flow conditions for the removal of the emerging contaminant atenolol.

Continuous flow reduction of organic dyes over Pd-Fe alloy based fibrous catalyst in a fixed-bed system

2021 ◽  
Vol 231 ◽  
pp. 116303
Author(s):  
Jiangbo Xi ◽  
Qijun Wang ◽  
Xianming Duan ◽  
Ning Zhang ◽  
Junxia Yu ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Organic Dyes ◽  
Fixed Bed ◽  
Flow Reduction ◽  
Fixed Bed System
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