PMID- 19710110
OWN - NLM
STAT- MEDLINE
DCOM- 20110126
LR  - 20150921
IS  - 1096-3669 (Electronic)
VI  - 28
IP  - 10
DP  - 2010 Oct
TI  - The chemical and oxidation characteristics of semi-dry flue gas desulfurization 
      ash from a steel factory.
PG  - 865-71
LID - 10.1177/0734242X09339952 [doi]
AB  - Some samples of semi-dry flue gas desulfurization (FGD) ash were taken from 
      sinter gas of a steel factory. Scanning electron microscope (SEM) and X-ray 
      diffraction (XRD) analyses were employed to identify the samples in order to 
      investigate their physical and chemical characteristics. The results show that 
      semi-dry FGD ash from a steel factory is stable under atmospheric conditions. It 
      has irregular shape, a smooth surface and loose construction. The size of FGD ash 
      particles is around 0.5-25 microm, the average size is about 5 microm and the median 
      diameter is 4.18 microm. Semi-dry FGD ash from a steel factory consists of CaSO(3), 
      CaSO(4), CaCO(3), some amorphous vitreous material and unburned carbon. An 
      experimental method was found to study the oxidation characteristics of ash. A 
      prediction model of the oxidation efficiency was obtained based on response 
      surface methodology. The results show that not only the temperature, but also 
      gas:solid ratio, play an important role in influencing the oxidation efficiency. 
      The interactions of the gas:solid ratio with temperature play an essential role. 
      An improved response surface model was obtained which can be helpful to describe 
      the degree of oxidation efficiency of semi-dry FGD ash.
FAU - Liu, Ren-ping
AU  - Liu RP
AD  - School of Environmental Science and Engineering, Hebei University of Science and 
      Technology, Shijiazhuang, China.
FAU - Guo, Bin
AU  - Guo B
FAU - Ren, Ailing
AU  - Ren A
FAU - Bian, Jing-feng
AU  - Bian JF
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090826
PL  - England
TA  - Waste Manag Res
JT  - Waste management & research : the journal of the International Solid Wastes and 
      Public Cleansing Association, ISWA
JID - 9881064
RN  - 0 (Industrial Waste)
RN  - 12597-69-2 (Steel)
SB  - IM
MH  - Desiccation
MH  - *Industrial Waste
MH  - Oxidation-Reduction
MH  - Particle Size
MH  - Steel/*chemistry
MH  - Temperature
EDAT- 2009/08/28 09:00
MHDA- 2011/01/28 06:00
CRDT- 2009/08/28 09:00
PHST- 2009/08/28 09:00 [entrez]
PHST- 2009/08/28 09:00 [pubmed]
PHST- 2011/01/28 06:00 [medline]
AID - 0734242X09339952 [pii]
AID - 10.1177/0734242X09339952 [doi]
PST - ppublish
SO  - Waste Manag Res. 2010 Oct;28(10):865-71. doi: 10.1177/0734242X09339952. Epub 2009 
      Aug 26.