Alkali Activation of Oil Shale Ash Based Ceramics

Hamadi, Amel; Nabih, K.

doi:10.1155/2012/769532

Cited by 14 publications

(13 citation statements)

References 23 publications

(28 reference statements)

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“…The wide OH band centered at 3421 cm -1 is may be due to the absorption of water during the milling and preparation of the pellet. The shoulder located at 1423 cm -1 is attributed to the vibration CO 3 2-group of calcium carbonate which may be due to the carbonation of the samples during their exposure to the atmosphere [14]. The IR analysis result supports the results of XRD and SEM analysis, which confirms the richness of bottom ash on quartz.…”

Section: Cmss 2013supporting

confidence: 71%

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Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Nabih

Kada²,

Hmiri

et al. 2014

MATEC Web of Conferences

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Abstract. We focused our research on recycling industrial wastes, fly ash (F.A), bottom ash (B.A) and oil shale ash (S.A) in cement production. The study concerns physico-chemical characterization of these products and the influence of their addition on the mechanical proprieties of the CPJ 45 cement. XRF allowed us to rank the three additives used according to their contents on major oxides. Coal ashes belong to the class F, and thus possess poozzolanic properties and oil shale ash belongs to the class C and possesses hydraulic and poozolanic properties. The crystalline phases constituting each ash were analysed by XRD. We observe in bottom ash the presence of quartz and mullite. The same crystals are found in fly ash with hematite and magnetite. Oil shale ash is composed of quartz, anhydrite, gehlenite, wollastonite and periclase. The microstructures of fly ash and bottom ash were studied using SEM. The bottom ash was composed respectively of fine particles that are generally irregularly shaped, their dimensions are between 5 and 28ȝm and of big particles(300 ȝm). The EDX analysis coupled with an electronic microscope provided some information about the major elements that constitute our samples. The dehydrations of anhydrous and three days hydrated cement were examined by DSC. For hydrated cements we noticed endothermic peaks related to the dehydration of CSH, CH and decomposition of carbonates. The study of the mechanical properties of CPJ 45 cement by adding different proportions of fly ash, bottom ash and oil shale ash helped clarifying the percentage of ash that leaded to improve the 28 days mechanical strength. The results show that the cements studied have their maximum mechanical resistance with the addition at 7% of fly ash or 10% of oil shale ash.

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Section: Cmss 2013supporting

confidence: 71%

“…Morocco is one of the world leading countries in term of oil shale resources [3]. The oil shale ash is used on an industrial scale for cement production in several countries in the world.…”

Section: -Introductionmentioning

confidence: 99%

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Nabih

Kada²,

Hmiri

et al. 2014

MATEC Web of Conferences

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“…Numerous laboratories around the world have synthesized zeolites from fly ash used for removing heavy metals [11][12][13][14]. Shawabkeh et al have synthesized zeolites using oil shale ash by alkaline hydrothermal treatment and used them to remove cadmium and lead [15], Visa removed heavy metal ions from aqueous solutions by new zeolite materials synthesized from fly ash [16], Bao et al have synthesized cancrinite-type zeolite from fly ash for the removal of lead, copper, nickel, cobalt, and zinc [17], Bao et al have synthesized Na-A zeolite from oil shale ash to be used as adsorbent for copper removal [18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zeolites Materials Using Fly Ash and Oil Shale Ash and Their Applications in Removing Heavy Metals from Aqueous Solutions

Hamadi

Nabih

2018

Journal of Chemistry

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Fly ash and oil shale ash generated from power plants can be transformed to suitable materials usable for removal of heavy metals. Due to their high silica content, fly ash and oil shale ash have been considered as the main stone of zeolite synthesis. In this work, we synthesized zeolites from class F fly ash (FA) and modified oil shale ash (MOSA) by alkaline fusion followed by refluxing. Our synthesis process focused on the effect of quantity of NaOH on the crystallinity of the reaction products: Na-P1 and Na-P2 type zeolites synthesized, respectively, from FA and MOSA. e effect of NaOH mass (1, 2, 4, and 8 g) was investigated with the following synthesis conditions: 2 h fusion at 650°C, 2 h agitation, and refluxing for 12 hours. e experimental results demonstrated that the crystallinity of Na-p1 and Na-P2 zeolites increased with increasing the mass of NaOH. e resulting products were characterized with X-ray diffraction, FTIR, and scanning electron microscopy. e reaction products ZV4 and ZM4 synthesized, respectively, from FA and MOSA and containing main zeolite phases with a crystallinity of 92.7% of Na-P1 and 83.6% of Na-P2, respectively, were chosen as adsorbents for the adsorption experiments. Series of experiments were carried out to study the removal of lead, zinc, and chromium by ZV4 and ZM4. e results allowed us to know the optimal conditions of adsorption for the three heavy metals. Adsorption data have been interpreted in terms of Langmuir and Freundlich isotherms. e results showed that lead has a higher affinity for ZM4 than ZV4 and zinc has similar adsorption efficiency for both sorbents that was remarkably reduced for chromium. e results of the present work suggest that zeolites synthesized from MOSA may be considered as effective as those synthesized from FA for heavy metals adsorption.

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“…Valorisation of these valuable by product will reduce the environmental impact and will make oil shale development economically feasible for energy production in the future [20].…”

Section: Introductionmentioning

confidence: 99%

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

Miyah¹,

Idrissi²,

Zerrouq³

2014

IJIRSET

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This article presents two aspects environnementals: valorization of oil shale ash (OSA) of oil industry on the one hand, and on the other hand to study the effectiveness of cation adsorption of dye such as the Methylene blue (BM) on material (OSA).In this context, we carried out a parametric study of adsorption, in particular, the time of contact, the pH, the amount of the adsorbent, the temperature and the stirring velocity. A study of the kinetics of adsorption was carried out by two models: pseudo-first order and pseudo-second order, and a modeling by the isotherms of adsorption while basing itself on the models of Langmuir and Frendlich. The maximum capacity of adsorption of BM on OSA is of 2,464 mg/g, for a concentration of BM of 5 mg/L, an amount of adsorbent of 2 g/L. Material OSA was characterized by several methods such as diffraction of x-ray (DRX), electronic scan microscopy (MEB), electronic microscopy in transmission (MET), x-ray fluorescence (FX), and the infra-red Spectroscopy with transforms of Fourier (FTIR). In addition, the economic aspect of the use of OSA makes important the re-use of these materials considering their capacity to regenerate itself.

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Alkali Activation of Oil Shale Ash Based Ceramics

Cited by 14 publications

References 23 publications

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Synthesis of Zeolites Materials Using Fly Ash and Oil Shale Ash and Their Applications in Removing Heavy Metals from Aqueous Solutions

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

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Alkali Activation of Oil Shale Ash Based Ceramics

Cited by 14 publications

References 23 publications

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ45cement

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ45cement

Synthesis of Zeolites Materials Using Fly Ash and Oil Shale Ash and Their Applications in Removing Heavy Metals from Aqueous Solutions

Removal of a Cationic Dye -Méthylène Bleu- From Aqueous Solution by Adsorption onto Oil Shale Ash of Timahdit (Morocco)

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Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement

Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ₄₅cement