Selection of best impregnated palm shell activated carbon (PSAC) for simultaneous removal of SO2 and NOx

Sethupathi, Sumathi; Bhatia, Subhash; Lee, Keat Teong

doi:10.1016/j.jhazmat.2009.11.037

Cited by 129 publications

(63 citation statements)

References 31 publications

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“…350 m 2 g -1 , and tend to decrease along with dolomite loading in the raw mixtures. Such a trend is known to be resultant from a pore-blocking effect, frequently observed in chemically modified activated carbons or impregnated ones [26]. In the case of PET/DOL-based samples, the regular lowering in pore structure parameters must be caused by increasing contents of CaO and MgO crystallites incorporated into the carbon matrix.…”

Section: X-ray Diffraction (Xrd) Resultsmentioning

confidence: 98%

MgO/CaO-loaded porous carbons for carbon dioxide capture

Przepiórski

Czyżewski

Pietrzak

et al. 2012

J Therm Anal Calorim

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Nanoporous carbons loaded with both MgO and CaO were prepared by a simple heating of mixtures consisting of poly(ethylene terephthalate) and natural dolomite. Preparations were carried out at temperatures ranging from 850 to 1,000°C that ensured complete thermal decomposition of the dolomite contained in the mixtures to the oxides. An influence of the PET/dolomite weight ratio and temperature of the preparation process on the porosity of the obtained composite products and on CaO and MgO crystallite sizes are discussed using the results of nitrogen adsorption/desorption at 77 K and X-ray diffraction analyses, respectively. Performances of the hybrid materials as sorbents for carbon dioxide were examined using thermogravimetric analyses. Finally, possibility of regeneration of the spent sorbent materials together with a side-effect accompanying this process are discussed on the basis of thermogravimetric measurements. As found, a part of CO 2 captured by the hybrid sorbents gets adsorbed weakly and another portion is fixed strongly. During thermal regeneration, the strongly fixed CO 2 reacts with carbon material. In this way small fraction of a sorbent is lost.

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Section: X-ray Diffraction (Xrd) Resultsmentioning

confidence: 98%

MgO/CaO-loaded porous carbons for carbon dioxide capture

Przepiórski

Czyżewski

Pietrzak

et al. 2012

J Therm Anal Calorim

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“…Figure 3 shows the RBBR removal percentage versus the time interval obtained from Eq. (2). It can be seen that the RBBR removal percentage increases with time and reaches a constant value above 20 hours.…”

Section: Proximate Analysismentioning

confidence: 81%

“…Activated carbon has been proven to be an effective and widely used adsorbent for the removal of a variety of organic and inorganic pollutants dissolved in aqueous solution [1], or from a gaseous environment [2] Activated carbons used as adsorbent have a comparatively high surface area and total pore volume. The commercially available activated carbons made from petroleum coke, bituminous coal, and lignite are expensive, which limits their use and application [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Activation Time on the Pinang Frond based Activated Carbon for Remazol Brilliant Blue R Removal

Ahmad¹,

Herawan²,

Yusof³

2014

J MECH ENG SCI

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Activated carbons are regularly used for dye wastewater treatment. They can be produced from various organic materials which have a high level of carbon content. In this study, Pinang frond based activated carbon (PFAC) was produced by using a physical activation process to study the effect of different activation times in the range of 1-7 hours. The optimum PFAC sample was found with an activation time of 3 hours, which gives the highest BET surface area and pore volume of 958.23 m 2 /g and 0.5469 mL/g, respectively. This sample shows well-developed pore structure with a high fixed carbon content of 79.74%. The removal of 87.6% of Remazol Brilliant Blue R (RBBR) was achieved for a sample with initial RBBR concentration of 50 mg/L, and 40.8% was achieved with 500 mg/L. The results indicated that the PFAC is very effective for RBBR adsorption from aqueous solution.

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“…Tian et al (2009) demonstrated that the doped CeO 2 in activated carbon significantly promoted the adsorption ability for Hg 0 . Sumathi et al (2010) indicated that the raw and the palm shell-based activated carbons impregnated with Ni, V, Fe and Ce metal oxides can be used to simultaneous removal of SO 2 and NO x . Liu and Liu (2013) suggested that activated coke doped with V metal oxide had high activities in adsorption and oxidation, which are the key mechanisms for multipollutants removal in coal-fired flue gas.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Control of Elemental Mercury/Sulfur Dioxide/Nitrogen Monoxide from Coal-Fired Flue Gases with Metal Oxide-Impregnated Activated Carbon

Chiu

Lin

Kuo

et al. 2015

Aerosol Air Qual. Res.

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This research investigated the effects of transition metal oxide impregnation on the physical/chemical properties and on the multipollutant (i.e., Hg 0 /SO 2 /NO) control of a commercial coconut shell-based activated carbon. V, Mn, and Cu oxides of 5 wt% as their precursor metal hydroxides were impregnated onto the activated carbon surface. After the transition metal oxide impregnation, the surface area and pore volume of activated carbon decreased. The surface morphology of activated carbons was similar prior to and after impregnation. Mn 3+ /Mn 4+ and Cu + /Cu 2+ were shown to be the major valence states presenting in the MnO x and CuO x /CAC samples, respectively. CuO x /CAC possessed the greatest Hg 0 removal efficiency of approximately 54.5% under N 2 condition and 98.9% under flue gas condition, respectively at 150°C. When the gas temperature increased to 350°C, the metal oxide-impregnated activated carbon still possessed appreciable Hg 0 removal, especially for CuO x /CAC. The VO x /CAC had the largest SO 2 removal enhancement of approximately 28.3% at 350°C. The NO removal of raw and impregnated activated carbon was very small under flue gas condition, indicating that adsorption of NO using metal oxide-impregnated activated carbon may not be a suitable route for NO control.

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Selection of best impregnated palm shell activated carbon (PSAC) for simultaneous removal of SO2 and NOx

Cited by 129 publications

References 31 publications

MgO/CaO-loaded porous carbons for carbon dioxide capture

MgO/CaO-loaded porous carbons for carbon dioxide capture

Effect of Activation Time on the Pinang Frond based Activated Carbon for Remazol Brilliant Blue R Removal

Simultaneous Control of Elemental Mercury/Sulfur Dioxide/Nitrogen Monoxide from Coal-Fired Flue Gases with Metal Oxide-Impregnated Activated Carbon

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