PMID- 30047848
OWN - NLM
STAT- MEDLINE
DCOM- 20200611
LR  - 20200611
IS  - 2162-2906 (Electronic)
IS  - 1096-2247 (Linking)
VI  - 69
IP  - 1
DP  - 2019 Jan
TI  - Investigation of aerosol and gas emissions from a coal-fired power plant under 
      various operating conditions.
PG  - 34-46
LID - 10.1080/10962247.2018.1503981 [doi]
AB  - The concentrations of fine particles and selected gas pollutants in the flue gas 
      entering the stack were measured under several common operation modes in an 
      operating coal power plant producing electricity. Particle size distributions in 
      a diameter range from 10 nm to 20 mum were measured by a scanning mobility 
      particle sizer (SMPS), and the flue gas temperature and concentrations of CO(2) 
      and SO(2) were monitored by a continuous emission monitoring system (CEMS). 
      During the test campaign, five plant operating modes were studied: soot blowing, 
      bypass of flue-gas desulfurization (FGD), reheat burner operating at 0% (turned 
      off), 27%, and 42% (normal condition) of its full capacity. For wet and dry 
      aerosols, the measured mode sizes were both around 40 nm, but remarkable 
      differences were observed in the number concentrations (#/cm(3), count per square 
      centimeter). A prototype photoionizer enhanced electrostatic precipitator (ESP) 
      showed improved removal efficiency of wet particles at voltages above +11.0 kV. 
      Soot blowing and FGD bypass both increased the total particle number 
      concentration in the flue gas. The temperature was slightly increased by the FGD 
      bypass mode and varied significantly as the rating of reheat burner changed. The 
      variations of CO(2) and SO(2) emissions showed correlations with the trend of 
      total particle number concentration possibly due to the transitions between gas 
      and particle phases. The results are useful in developing coal-fired power plant 
      operation strategies to control fine particle emissions and developing 
      amine-based CO(2) capture technologies without operating and environmental 
      concerns associated with volatile amine emissions.Implications: The measurement 
      of the fine particle size distributions in the exhaust gas under several common 
      operating conditions of a coal-fired power plant revealed different response 
      relations between aerosol number concentration and the operating condition. A 
      photo-ionizer enhanced ESP was demonstrated to capture fine particles with higher 
      efficiency compared to conventional ESPs, and the removal efficiency increased 
      with the applied voltage. The characteristic information of aerosols and main 
      gaseous pollutants in the exhaust gas is extremely important for developing and 
      deploying CO(2) scrubbers, whose amine emissions and operating effectiveness 
      depends greatly on the upstream concentrations of fine particles, SO(2), from the 
      power plant.
FAU - Li, Zhichao
AU  - Li Z
AD  - Department of Energy, Environmental & Chemical Engineering, Aerosol and Air 
      Quality Research Laboratory, Center for Aerosol Science and Engineering, 
      Washington University in St. Louis, St. Louis, Missouri, USA.
FAU - Wang, Yang
AU  - Wang Y
AUID- ORCID: 0000-0002-0543-0443
AD  - Department of Energy, Environmental & Chemical Engineering, Aerosol and Air 
      Quality Research Laboratory, Center for Aerosol Science and Engineering, 
      Washington University in St. Louis, St. Louis, Missouri, USA.
FAU - Lu, Yongqi
AU  - Lu Y
AD  - Illinois State Geological Survey, Prairie Research Institute, University of 
      Illinois at Urbana-Champaign, Champaign, Illinois, USA.
FAU - Biswas, Pratim
AU  - Biswas P
AD  - Department of Energy, Environmental & Chemical Engineering, Aerosol and Air 
      Quality Research Laboratory, Center for Aerosol Science and Engineering, 
      Washington University in St. Louis, St. Louis, Missouri, USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20181107
PL  - United States
TA  - J Air Waste Manag Assoc
JT  - Journal of the Air & Waste Management Association (1995)
JID - 9503111
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Coal)
RN  - 0 (Particulate Matter)
RN  - 0UZA3422Q4 (Sulfur Dioxide)
RN  - 142M471B3J (Carbon Dioxide)
SB  - IM
MH  - Aerosols/*analysis
MH  - Air Pollutants/*analysis
MH  - Carbon Dioxide/*analysis
MH  - Coal
MH  - *Environmental Monitoring
MH  - Particle Size
MH  - Particulate Matter/*analysis
MH  - *Power Plants
MH  - Sulfur Dioxide/*analysis
EDAT- 2018/07/27 06:00
MHDA- 2020/06/12 06:00
CRDT- 2018/07/27 06:00
PHST- 2018/07/27 06:00 [pubmed]
PHST- 2020/06/12 06:00 [medline]
PHST- 2018/07/27 06:00 [entrez]
AID - 10.1080/10962247.2018.1503981 [doi]
PST - ppublish
SO  - J Air Waste Manag Assoc. 2019 Jan;69(1):34-46. doi: 
      10.1080/10962247.2018.1503981. Epub 2018 Nov 7.