Journal ArticleDOI
Preparation and characterization of fly ash/hydrated lime sorbents for SO2 removal
TLDR
In this article, coal fly ash has been slurried with hydrated lime in a Parr pressure reactor, and the influence of the operation variables (temperature, time, fly ash/Ca(OH) 2 ratio, pressure and water/solids ratio) on the structural properties of the final sorbent, the BET-nitrogen specific surface area and the pore volume distribution are studied using a factorial design for the experiments.About:
This article is published in Powder Technology.The article was published on 1997-12-01. It has received 62 citations till now. The article focuses on the topics: Fly ash & Specific surface area.read more
Citations
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Journal ArticleDOI
Sulfur removal at high température during coal combustion in furnaces: a review
TL;DR: In this article, the authors focus on sulfur removal technologies in industrial grate furnaces (IGF) and pulverized coal fired boilers (PCFB) with high flame temperature of 1200-1600 °C.
Journal ArticleDOI
Transesterification of soybean oil catalyzed by fly ash and egg shell derived solid catalysts
TL;DR: In this article, a fly ash supported heterogeneous CaO catalyst has been developed using waste egg shell for transesterification of soybean oil to yield fuel grade biodiesel, which exhibited higher reusability characteristic and superior catalytic activity compared to unsupported CaO catalysts derived from egg shell.
Journal ArticleDOI
Adsorption of SOx by oxide materials: A review
TL;DR: A review of the literature devoted to the wide variety of sorbent systems that are currently either in use or under laboratory investigation for the removal of the SOx (SO2+SO3) from flue gases is provided in this article.
Journal ArticleDOI
Study of adsorbent prepared from oil palm ash (OPA) for flue gas desulfurization
Nor Fatiha Zainudin,Keat Teong Lee,Azlina Harun Kamaruddin,Subhash Bhatia,Abdul Rahman Mohamed +4 more
TL;DR: In this article, the influence of four adsorbent preparation variables; hydration period (x 1 ), ratio of OPA to CaO/Ca(OH) 2 (x 2 ), amount of CaSO 4 (x 3 ) and CaO or Ca(OH 2 ( x 4 ) on the adsorbents surface area were studied using a 2 4 full factorial central composite design (CCD) in response surface methodology (RSM).
Journal ArticleDOI
Removal of sulfur dioxide by fly ash/CaO/CaSO4 sorbents
TL;DR: In this paper, the effects of specific surface area (16.1-133.3 m 2 /g), reaction temperature (60-300 °C), feed concentration of SO 2 (500-2500 ppm), and NO (0-750 ppm) on the desulfurization activity of coal fly ash, CaO, and CaSO 4 were investigated.
References
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Journal ArticleDOI
Ca(OH)2/fly ash sorbents for SO2 removal
Chun Sung Ho,Shin Min Shih +1 more
TL;DR: In this paper, the reactivity of fly ash sorbent with SO[sub 2] was studied by using a fixed-bed differential reactor under the conditions simulating the bag filters of the spray-drying flue gas desulfurization.
Journal ArticleDOI
Highly Active Absorbent for SO2 Removal Prepared from Coal Fly Ash
TL;DR: In this paper, the absorbent for SO{sub 2} from the flue gas of a coal-fired electric power station was prepared from calcium oxide, calcium sulfate, and coal fly ash and examined for the relation between the desulfurization activity and the structure.
Journal ArticleDOI
Fly ash recycle in dry scrubbing
TL;DR: In this paper, the effects of fly ash recycle in dry scrubbing were described and the results showed that the recycle of product solids improves the utilization of slaked lime for SO/sub 2/ removal by spray dryers with bag filters.
Journal ArticleDOI
Heated Fly Ash/Hydrated Lime Slurries for SO2 Removal in Spray Dryer Absorbers
TL;DR: In this paper, fly ashes were slurried with quicklime at elevated temperatures to determine their reactivity with SO[sub 2] in a minipilot spray dryer, and the most reactive fly ash possessed the highest pozzolanic activity.
Journal ArticleDOI
Reactivation of fly ash and calcium hydroxide mixtures for sulfur dioxide removal of flue gas
TL;DR: In this article, the authors report on mixtures of fly ash and Ca(OH)-sub 2 that were hydrated, characterized, and tested in laboratory-scale experiments, and show that SO{sub 2} removal correlates well with the relative surface area increment.
Related Papers (5)
Preparation, Characterization, and Calcium Utilization of Fly Ash/Ca(OH)2 Sorbents for Dry Desulfurization at Low Temperature
M. J. Renedo,J. Fernández +1 more