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A Comparative Study of Different Drying Processes for a Deformable Saturated Porous medium

Fluid Dynamics & materials Processing 2023年第6期19卷 1339-1348页

作者： nour el houda ben m.staphaa Ibtissem Boumnijel m.el-Ganaoui Daoued mihoubi Laboratory of Wind Energy management and Waste Energy Recovery Research and Technology Center of EnergyHammam-LifTunisia Laboratory of Studies and Research on Wood material(LERmAB) University of LorraineLongwyFrance National Engineering School of monastir University of MonastirMonastirTunisia

Drying of a deformable saturated porous medium based on convective tempering is a novel method that can enhance energy efficiency and the quality of the dried product *** this experimental investigation,the performances of this specific technique are compared with those of a standard stationary drying process in terms of deformation,drying kinetics,moisture redistribution,and energy *** particular,the response of a deformable saturated porous medium(Kaolin)is *** results are critically discussed pointing out advantages and drawbacks.

关键词： Convective drying tempering convective drying energy consumption Kaolin

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One-pot activation and pyrolysis of moroccan Gelidium sesquipedale red macroalgae residue:production of an efficient adsorbent biochar

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Biochar 2019年第4期1卷 401-412页

作者： Saida Tayibi Florian monlau nour-elhouda Fayoud Abdallah.Oukarroum Youssef Zeroual Hassan Hannache Abdellatif Barakat IATE Montpellier SupAgroINRAEUniversite de MontpellierMontpellierFrance mohammed VI Polytechnic University(Um6P) BenguerirMorocco APESA Pôle ValorisationCap EcologiaLescarFrance LImAT Facultédes Sciences Ben M’SikUniversitéHassan II de CasablancaCasablancaMorocco Situation Innovation OCP GroupComplexe industriel Jorf LasfarEl

One-pot chemical activation and pyrolysis process was developed for biochar production from red macroalgae residue of Gelidium *** macroalgae residue was activated by various catalysts(KOH,NaOH,H_(3)PO_(4),and CH_(4)ON_(2))with the two concentrations(2.5 wt%and 5 wt%)using a pulverization system followed by slow pyrolysis at 500℃.The activated biochars showed a porous morphology with an increase of water holding capacity compared to the unactivated *** properties of activated biochar observed by further characterization(i.e.,FTIR,SEm,TGA)revealed their feasibility to be used as an *** results of adsorption experiment confirmed that adsorption was dependent not only on the surface area but also on the surface charge,and functional *** sorption performance of activated biochars(AcBC),in terms of the adsorption of methylene blue,was comparable to commercial activated charcoal(Norit^(■)).NaOH(2.5 wt%)-activated biochar had the removal efficiency of 87%versus 97%for commercial activated charcoal.

关键词： Red macroalgae residue Chemical activation Slow pyrolysis Adsorption

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