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20080204151452.0 |
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091215e19990430dcu st f0|||||eng|d |
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|a (TOE)ost9040
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|a (TOE)9040
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|a TOE
|c TOE
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|a GDWR
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|a 1
|2 edbsc
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|a 20
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|a E 1.99:DE--FG22-96PC96210--05
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|a E 1.99:DE--FG22-96PC96210--05
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|a DE--FG22-96PC96210--05
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| 245 |
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|a SO2 REMOVAL FROM FLUE GASES USING UTILITY SYNTHESIZED ZEOLITES
|h [electronic resource]
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| 260 |
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|a Washington, D.C :
|b United States. Dept. of Energy ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1999.
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| 300 |
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|a 11 pages.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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| 500 |
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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| 500 |
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|a 04/30/1999.
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| 500 |
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|a "DE--FG22-96PC96210--05"
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| 500 |
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|a Michael Grutzeck.
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| 513 |
|
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|a Semiannual;
|b 02/28/1999.
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| 520 |
3 |
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|a It is well known that natural and synthetic zeolites (molecular sieves) can adsorb gaseous SO₂ from flue gas and do it more efficiently than lime based scrubbing materials. Unfortunately their cost ($500-$800 per ton) has deterred their use in this capacity. It is also known that zeolites are easy to synthesize from a variety of natural and man-made materials. The overall objective of the current work has been to evaluate the feasibility of having a utility synthesize its own zeolites, on-site, from fly ash and other recycled materials and then use these zeolites to adsorb SO₂ from their flue gases. Work to date has shown that the efficiency of the capture process is related to the degree of crystallinity and the type of zeolite that forms in the samples. Normally, those samples cured at 150 C contained a greater proportion of zeolite and as such were more SO₂ adsorptive than their low-temperature counterparts. However, in order for the project to be successful, on site synthesis must remain an option, i.e. 100 C synthesis. In light of this, the experimental focus now has two aspects. First, compositions of the starting materials are being altered by blending the current suite of fly ashes with ground glass cullet and silica fume to promote the formation and growth of well crystallized and highly adsorptive zeolites. Second, greater degrees of reaction at significantly lower temperatures are being promote by ball milling the fly ash prior to use, by the use of more concentrated caustic solutions, and by the addition of zeolite seeds to the reactants. In all cases studies will focus on the effect of structure type and degree of conversion on SO₂ adsorption. Future work will concentrate on the study of the effect of weathering on the suitability of converting fly ash into zeolites. This is an especially important study, considering the acres of fly ash now in storage throughout the US.
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| 536 |
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|b FG22-96PC96210.
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| 650 |
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|a Flue Gas.
|2 local.
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| 650 |
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|a Fly Ash.
|2 local.
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| 650 |
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7 |
|a Desulfurization.
|2 local.
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| 650 |
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7 |
|a Sulfur Dioxide.
|2 local.
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| 650 |
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7 |
|a Removal.
|2 local.
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| 650 |
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7 |
|a Zeolites.
|2 local.
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| 650 |
|
7 |
|a Molecular Sieves.
|2 local.
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| 650 |
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7 |
|a Waste Product Utilization.
|2 local.
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| 650 |
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7 |
|a Fossil-fuel Power Plants.
|2 local.
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| 650 |
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7 |
|a Synthesis.
|2 local.
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| 650 |
|
7 |
|a Waste Processing.
|2 local.
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| 650 |
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7 |
|a Coal, Lignite, And Peat.
|2 edbsc.
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| 650 |
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7 |
|a Fossil-fueled Power Plants.
|2 edbsc.
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| 710 |
2 |
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|a Federal Energy Technology Center (U.S.).
|4 res.
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| 710 |
2 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
2 |
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|a National Energy Technology Laboratory (U.S.).
|4 res.
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| 710 |
2 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
|
| 856 |
4 |
0 |
|u http://www.osti.gov/servlets/purl/9040-H3VvFd/webviewable/
|z Online Access
|
| 907 |
|
|
|a .b56190037
|b 03-06-23
|c 12-15-09
|
| 998 |
|
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|a web
|b 12-15-09
|c f
|d m
|e p
|f eng
|g dcu
|h 0
|i 1
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| 956 |
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|s bea9108a-eec4-50cf-88cc-c3e9fa6ce37a
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| 952 |
f |
f |
|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:DE--FG22-96PC96210--05
|h Superintendent of Documents classification
|i web
|n 1
|
