Publications Internationales
Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/13
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Item Catalytic effects of eggshell ash on the conversion of used engine oil to fuel by pyrolysis(Taylor and Francis, 2022) Zerdane, Youghourta; Largeau, Jean François; Hachemi, Madjid; Tazerout, MohandThe objective of this work is to recycle used engine oil until it is converted into an alterna- tive fuel by catalytic pyrolysis. The effect of using eggshell ash as a catalyst in pyrolysis reac- tions on the yield of the resulting fractions was investigated. In addition, the influence of this catalyst on the compositions and the quality of the non-condensable gas and liquid fractions were analyzed. The results show that the liquid fraction recovered 97.02%wt; with 20%wt of the catalyst is predominant. The detection of aromatics 15.84%wt, olefins 32.74%wt, naphthenic 2.82%wt, paraffins 29.00%wt, and alcohols 20.50%wt, in the pyrolytic liquid and the observation of H2 15.22%wt, CH4 16.65%wt and other elements such as C4H8 21.93%wt in non-condensable gases, make it possible to predict the good usability of these products obtained as an alternative fuel.Item Investigation of natural gas enrichment with high hydrogen participation in dual fuel diesel engine(Elsevier, 2021) Benbellil, Messaoud Abdelalli; Lounici, Mohand Said; Loubar, Khaled; Tazerout, MohandThis study explores the impact of natural gas (NG) enrichment with high H2 concentrations (20, 30, 40 and 50 by v %) on combustion characteristics, engine performance, exhaust emissions and knock in a compression ignition engine running in dual fuel (DF) mode. Results indicated that H2 addition to NG contributes to enhance gaseous fuel combustion that corresponds to an increased heat release rate (HRR) during the premixed phase of gaseous fuel that also causes an increase in the pressure peak, particularly at high loads. The maximum pressure peak and HRR correspond to 50% H2 addition. The combustion duration is shortened for all H2 mixtures. Regarding engine performance, an important benefit in terms of brake thermal efficiency is noted for all H2 blends; it increases with increasing enrichment rate and reaches approximately 16% increase for the 50% H2 mixture relative to pure NG case. Moreover, enriching NG with H2 is an effective solution for reducing unburned hydrocarbons and carbon monoxide at moderate to high engine loads. However, for NOx emissions, the addition of H2 to NG is only attractive at low and moderate loads. In addition, over 80% engine load, NG enrichment with H2 generates knock, which rapidly reaches high intensities.Item Experimental investigation on petroleum sludge valorization into fuel via pyrolysis process(Springer Science and Business Media B.V., 2017) Bellahcene, Amal; Hachemi, Madjid; Largeau, Jean-François; Tarabet, Lyes; Burnens, Gaëtan; Khiari, Karim; Tazerout, MohandOil sludge (OS) has been of key concern due to its continuing effect on the environment degradation. The huge quantities thrown yearly of this waste contain a high proportion of hydrocarbons which are valuable for recovery. This study focused on the oil sludge conversion into a fuel for a diesel engine by thermal/catalytic pyrolysis process. The experiments were conducted at atmospheric pressure in a batch reactor operated without and with two catalyst types: TiO2 (3 and 5 wt%) and Al2O3(3 and 5 wt%). Overall all test conditions followed in the OS pyrolysis, a considerable liquid fraction is recovered (around 70%), as compared to the gaseous fraction (around 25%) and the solid residue (around 5%). The characterization of the pyrolytic oil samples, containing approximately 11.70% of oxygen, showed also that the use of 5% of Al2O3 catalyst in the OS cracking provide the best fuel quality with a minimum viscosity value (3.5 mm2/s), a maximum heating value (45.72 MJ/kg) with a hydrocarbon compounds in the range (C7–C32) which are detailed by GC–MS analysis. The others properties (density, flash point, pour point and cloud point) are found to be close to those of diesel fuel. Also, the catalysts effect is studied on the others pyrolysis products. The obtained results allow to predict the good usability as a diesel like fuel. Further tests to control engine performance and pollutant emissions could be done Graphic AbstractItem Bio-oil recovery from olive mill wastewater in sub-/supercritical alcohol-water system(Elsevier, 2019) Hadhoum, Loubna; Burnens, Gaëtan; Loubar, Khaled; Balistrou, Mourad; Tazerout, MohandItem Effect of natural gas enrichment with hydrogen on combustion characteristics of a dual fuel diesel engine(Elsevier, 2019) Ouchikh, Sarah; Lounici, Mohand Said; Tarabet, Lyes; Loubar, K.; Tazerout, MohandItem Hydrothermal liquefaction of oil mill wastewater for bio-oil production in subcritical conditions(Elsevier, 2016) Hadhoum, Loubna; Balistrou, Mourad; Burnens, Gaëtan; Loubar, Khaled; Tazerout, MohandItem Experimental investigation on NG dual fuel engine improvement by hydrogen enrichment(Elsevier, 2014) Lounici, Mohand Said; Boussadi, Asma; Loubar, Khaled; Tazerout, MohandItem Towards improvement of natural gas-diesel dual fuel mode : an experimental investigation on performance and exhaust emissions(Elsevier, 2014) Lounici, Mohand Said; Loubar, Khaled; Tarabet, Lyes; Balistrou, Mourad; Niculescu, Dan-Catalin; Tazerout, MohandItem Experimental assessment of performance and emissions maps for biodiesel fueled compression ignition engine(Elsevier, 2016) Kezrane, Cheikh; Awad, Sary; Loubar, Khaled; Liazid, Abdelkrim; Tazerout, MohandItem Eucalyptus biodiesel as an alternative to diesel fuel : preparation and tests on DI diesel engine(2012) Tarabet, Lyes; Loubar, Khaled; Lounici, Mohand Said; Hanchi, Samir; Tazerout, Mohand