Trace Gas Adsorption Within Gas-Sorbent Suspensions in the Presence of O2 and Water Vapor

Author(s):  
Uttam Narasimhan ◽  
Herek L. Clack

New federal regulations will soon limit total mercury emissions from coal-fired electric power plants, which supply half of the electric power and are responsible for one-third of the anthropogenic mercury emissions in the U.S [1]. This presents a significant challenge to the electric power industry because of variability in mercury concentration and speciation (both within a single facility and between different facilities) and a lack of proven continuous emissions monitor (CEM) and mercury control technologies. Although wet flue gas desulfurization (WFGD) has demonstrated effectiveness in removing oxidized forms of mercury (Hg2+, nominally in the form HgCl2), elemental mercury (Hg0) generally passes unaffected through such processes.

2018 ◽  
Vol 25 (2) ◽  
pp. 132-139 ◽  
Author(s):  
Andrzej Tomporowski ◽  
Józef Flizikowski ◽  
Weronika Kruszelnicka ◽  
Izabela Piasecka ◽  
Robert Kasner ◽  
...  

Abstract This paper describes identification and components of destructiveness of energy, economic and ecologic profits and outlays during life cycle of offshore wind electric power plants as well as the most useful models for their design, assembly and use. There are characterized technical conditions (concepts, structures, processes) indispensable for increasing profits and/or decreasing energy, economic and ecological outlays on their operation as well as development prospects for global, European and domestic markets of offshore wind electric power industry. A preliminary analysis was performed for an impact of operators, processed objects, living and artificial environmental objects of a 2MW wind electric power plant on possible increase of profits and decrease of outlays as a result of compensation of destructiveness of the system, environment and man.


2015 ◽  
Vol 1088 ◽  
pp. 332-336 ◽  
Author(s):  
Na Huang ◽  
Yan Bin Zhu ◽  
Dan Jie Meng

Mercury is a striking pollutant and mercury emissions from coal-fired power plants are under environmental regulation. The primary objective of mercury abatement in coal-fired power plants is to remove elemental mercury. Sorbent injection is one of the major commercially available technologies for mercury control from coal fired power plants and activated carbon is the most commonly employed sorbent. Modified activated carbons have been found to exhibit high mercury emission reduction efficiency. Noble metal and metal oxides also showed excellent mercury adsorption capacity. Fly ash, a waste product from coal-fired solid wastes, may be an excellent adsorbent owing to its low cost and abundance. There is no consistent evidence for the adsorption mechanism of mercury on modified activated carbon; a popular view is that the sorption mechanism is combination of physisorption and chemisorption.


2004 ◽  
Vol 40 (6) ◽  
pp. 836-843 ◽  
Author(s):  
H. M. Nykyforchyn ◽  
O. Z. Student ◽  
I. R. Dzioba ◽  
S. M. Stepanyuk ◽  
A. D. Markov ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document