Related Experiment Video
Updated: Mar 9, 2026

Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner
Published on: October 25, 2017
Low Concentration Mercury Sorption Mechanisms and Control by Calcium-Based Sorbents: Application in Coal-Fired
S Behrooz Ghorishi1, Charles B Sedman2
1a ARCADIS Geraghty & Miller , Research Triangle Park , , North Carolina , USA.
Abstract:
The capture of elemental mercury (Hg0) and mercuric chloride (HgCl2) by three types of calcium (Ca)-based sor-bents was examined in this bench-scale study under conditions prevalent in coal-fired utilities. Ca-based sorbent performances were compared with that of an activated carbon. Hg0 capture of about 40% (nearly half that of the activated carbon) was achieved by two of the Ca-based sorbents. The presence of sulfur dioxide (SO2) in the simulated coal combustion flue gas enhanced the Hg0 capture from about 10 to 40%. Increasing the temperature in the range of 65-100 °C also caused an increase in the Hg0 capture by the two Ca-based sorbents. Mercuric chloride (HgCl2) capture exhibited a totally different pattern. The presence of SO2 inhibited the HgCl2 capture by Ca-based sorbents from about 25 to less than 10%. Increasing the temperature in the studied range also caused a decrease in HgCl2 capture. Upon further pilot-scale confirmations, the results obtained in this bench-scale study can be used to design and manufacture more cost-effective mercury sorbents to replace conventional sorbents already in use in mercury control.
More Related Videos
11:14Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
08:00Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
Published on: September 29, 2023
Related Concept Videos
Factors Affecting Solubility
Controlled-Potential Coulometry: Electrolytic Methods
The chosen potential...
Controlled-Current Coulometry: Overview
Heterogeneous Catalysis
Nuclear Power
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Extraction: Advanced Methods