Publication Type |
journal article |
Research Institute |
Institute for Clean and Secure Energy (ICSE) |
Author |
Gale, Thomas K.; Wendt, Jost O. L. |
Title |
In-furnace capture of cadmium and other semi-volatile metals by sorbents |
Date |
2005 |
Description |
An 18 kW, cylindrical (inside diameter = 15-cm), 6-m high, laminar, downflow furnace was used to investigate the mechanisms governing reactive scavenging of cadmium vapors from combustion environments, by hydrated lime and kaolinite powder sorbents. Two major physical mechanisms dominate the reaction rate and sorbent utilization during the capture of semi-volatile metal by kaolinite, temperature-activated eutectic-melting-enhanced capture and excessive-melt deactivation, initiated at a higher temperature than the enhancement. However, cadmium forms higher temperature eutectics than other semivolatile metals such as lead and sodium, which have a transition to a deactivating melt below 1100 C. The network modifier responsible for the reaction enhancement is the metal/sorbent reaction product itself, which forms a eutectic with the remaining, unreacted sorbent. Global rate models were developed to describe the reaction of kaolinite with lead, sodium, and cadmium metal vapors. The following reaction scheme was valid for all three metal vapors, Na/Pb/Cd: |
Type |
Text |
Publisher |
Elsevier, Inc. |
Subject |
in-furnace capture; cadmium capture; semi-volatile metals; sorbents; sorbent utilization |
Language |
eng |
Bibliographic Citation |
Gale, T. K.; Wendt, J. O. L. (2005). In-furnace capture of cadmium and other semi-volatile metals by sorbents. Elsevier, Inc. Proceedings of the Combustion Institute, 30. pp. 2999-3007. |
Relation Has Part |
Proceedings of the Combustion Institute; vol. 30, pp. 2999-3007 (2005) |
Rights Management |
(c)Elsevier, Inc. |
Format Medium |
application/pdf |
Format Extent |
548,669 bytes |
Identifier |
ir-eua/id/1602 |
Source |
DSpace at ICSE |
ARK |
ark:/87278/s6r81d81 |
Setname |
ir_eua |
ID |
212819 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6r81d81 |