Cited by 147Industrial Gas Emission ControlZeolite Catalysis and SynthesisCarbon Dioxide Capture Technologies

The Adsorption of SO 2 by Zeolites Synthesized from Fly Ash

Srinivasan, Anand, Grutzeck, Michael W.·1999·Environmental Science & Technology

Abstract

Zeolites X, Y, and Na-P1 (90 °C) and analcime and sodalite (150 °C) were synthesized from Class F fly ash using 3 M sodium hydroxide solutions and autogenous pressures. The partially zeolitized fly ashes were dried overnight in air at room temperature and then characterized using X-ray diffraction and SEM. On occasion, a few samples were dried to constant weight for an additional 8−10 min in a microwave oven to remove bound water as well. The dried samples were evaluated for their ability to adsorb sulfur dioxide (SO 2 ) from a simulated stack gas containing ∼2000 ppm SO 2 . Determinations were made in real time using a UV/vis spectrophotometer followed by a total sulfur analysis of the “loaded” samples once testing was complete. Breakthrough curves indicate that the zeolites in the samples are able to remove all of the SO 2 in the simulated flue gas (zero SO 2 emission) for varying periods of time, and that the actual amount of SO 2 removed by the zeolite depended on the type and degree of “dryness” of the zeolite or zeolite-like material present. For example, a 7 day 150 °C cured sample containing analcime and sodalite was able to adsorb 6−7 mg of SO 2 per gram of sample regardless of the source of the fly ash, whereas a 90 °C cured sample containing X, Y, and Na-P1 was significantly less efficient.

Integrity signals

Registry

Crossref · 10.1021/es9802091

Cites

15 of 15 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The largest SO2 adsorption capacity at room temperature among zeolites synthesized from fly ash was given by a mixture of sodalite and analcime.

    “found that the largest SO2 adsorption capacity at room temperature was given by a mixture of sodalite and analcime.616”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Srinivasan, A., & Grutzeck, M. W.
Affiliations
Pennsylvania State University (US)
Venue
Environmental Science & Technology
Published
1999-03-31
Volume
33
Issue
9
Pages
1464-1469
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2090399743
Cited by
147
References
15
Citations by year
2026: 5 · 2025: 5 · 2024: 5 · 2023: 7 · 2022: 6 · 2021: 13 · 2020: 7 · 2019: 6 · 2018: 5 · 2017: 7 · 2016: 8 · 2015: 2 · 2014: 5 · 2013: 8 · 2012: 5
FWCI
12.82
Type
journal article
Language
en
Open access
closed
Locations
Environmental Science & Technology (publishedVersion)
Funders
U.S. Department of Energy
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
SO2 adsorption, zeolites, fly ash, zeolite synthesis, flue gas desulfurization, zeolite X, zeolite Y, Na-P1 zeolite, analcime, sodalite, microwave drying, breakthrough curves, stack gas

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review