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Title: Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992

Abstract

SEM pictures of the three mixtures of sorbent and ash from the DITF and the base line ESP hopper ash from Muskingum are shown in Figures 1 through 4. The effects of sorbent addition on particle morphology are evident in Figures 2 through 4 by the presence of irregularly shaped particles and deposits on the surfaces of the spherical fly ash particles. In contrast, the base Ene ash particles have the characteristic relatively smooth, spherical morphology normally associated with pulverized-coal (PC) fly ashes. Resistivity determinations made on these four ashes in ascending and descending temperature modes. These data are shown in Figures 5 and 6. Sorbent injection processes performed at the DITF lowered the duct temperature to around 165{degrees}F from about 350{degrees}F for base line operation. Consequently, during collection in the ESP, the particulate matter from the sorbent injection processes had a significantly lower resitivity (approximately 4 {times} 10{sup 7} {Omega}-cm) than the base line ash (approximately 3 {times} 10{sup 11} {Omega}-cm at 350{degrees}F). Specific surface areas and true particle densities have been measured for the four samples obtained from the DOE/PETC Duct Injection Test Facility. These data are summarized in Table 4. The primary difference indicated by these initialmore » analyses of these four samples is the significant increase in specific surface area due to sorbent addition. The specific surface areas of the three sorbent and ash mixtures from the DITF are quite similar.« less

Authors:
;
Publication Date:
Research Org.:
Southern Research Inst., Birmingham, AL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10182241
Report Number(s):
DOE/PC/90365-T7; SRI-ENV-92-603-7375-Q4
ON: DE92040539
DOE Contract Number:  
AC22-91PC90365
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 27 Jul 1992
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; FOSSIL-FUEL POWER PLANTS; FLUE GAS; FLY ASH; ELECTRIC CONDUCTIVITY; PROGRESS REPORT; NUMERICAL DATA; SORBENT INJECTION PROCESSES; ELECTROSTATIC PRECIPITATORS; TEMPERATURE DEPENDENCE; SCANNING ELECTRON MICROSCOPY; SILICON OXIDES; PARTICULATES; SURFACE AREA; MORPHOLOGY; 200202; NOXIOUS GAS AND PARTICULATE EMISSIONS

Citation Formats

Snyder, T R, and Vann Bush, P. Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992. United States: N. p., 1992. Web. doi:10.2172/10182241.
Snyder, T R, & Vann Bush, P. Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992. United States. https://doi.org/10.2172/10182241
Snyder, T R, and Vann Bush, P. 1992. "Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992". United States. https://doi.org/10.2172/10182241. https://www.osti.gov/servlets/purl/10182241.
@article{osti_10182241,
title = {Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992},
author = {Snyder, T R and Vann Bush, P},
abstractNote = {SEM pictures of the three mixtures of sorbent and ash from the DITF and the base line ESP hopper ash from Muskingum are shown in Figures 1 through 4. The effects of sorbent addition on particle morphology are evident in Figures 2 through 4 by the presence of irregularly shaped particles and deposits on the surfaces of the spherical fly ash particles. In contrast, the base Ene ash particles have the characteristic relatively smooth, spherical morphology normally associated with pulverized-coal (PC) fly ashes. Resistivity determinations made on these four ashes in ascending and descending temperature modes. These data are shown in Figures 5 and 6. Sorbent injection processes performed at the DITF lowered the duct temperature to around 165{degrees}F from about 350{degrees}F for base line operation. Consequently, during collection in the ESP, the particulate matter from the sorbent injection processes had a significantly lower resitivity (approximately 4 {times} 10{sup 7} {Omega}-cm) than the base line ash (approximately 3 {times} 10{sup 11} {Omega}-cm at 350{degrees}F). Specific surface areas and true particle densities have been measured for the four samples obtained from the DOE/PETC Duct Injection Test Facility. These data are summarized in Table 4. The primary difference indicated by these initial analyses of these four samples is the significant increase in specific surface area due to sorbent addition. The specific surface areas of the three sorbent and ash mixtures from the DITF are quite similar.},
doi = {10.2172/10182241},
url = {https://www.osti.gov/biblio/10182241}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 27 00:00:00 EDT 1992},
month = {Mon Jul 27 00:00:00 EDT 1992}
}