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Activated Carbon

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Mohammad Nader Lotfollahi – 1st expert on this subject based on the ideXlab platform

  • Effects of Powder Activated Carbon Particle Size on Activated Carbon Monolith’s Properties
    Materials and Manufacturing Processes, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Methyl cellulose as organic binder and bentonite as clay binder were simultaneously used to prepare Activated Carbon monolith (ACM) using powder Activated Carbon (PAC) and by means of extrusion process. To study the effects of PAC particle size on porosity, adsorption, and mechanical properties of the ACMs, four broad types of PAC including powder with particle size less than 150, 90, 50 µm, and powder without screening were prepared and used. Actually, it was tried to improve the adsorption capacity, surface area, and mechanical strength (both compression and impact strength) of the ACMs by screening the PAC microparticles to certain particle sizes. The results showed that arranging and decreasing the PAC particle size significantly improved the above-mentioned properties.

  • A procedure to form powder Activated Carbon into Activated Carbon monolith
    The International Journal of Advanced Manufacturing Technology, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Activated Carbon monolith was prepared using powder-Activated Carbon, methyl cellulose as organic binder, and bentonite as clay binder. The used organic binder contrib- uted to the plasticity of powder-Activated Carbon for well ex- truding into well-shaped bodies, and the used clay binder con- tributed to the mechanical strength of the bodies. The bodies were characterized by determination of adsorption capacity, surface area, and mechanical strength (both compression and impactstrengths). After that, itwas endeavoredtoimprove the mentioned properties by sieving powder-Activated Carbon into a uniform distribution of particle size. The obtained results illustrated that making the particle size uniform led to improv- ing the bodies’ properties significantly.

  • Effects of Powder Activated Carbon Particle Size on Adsorption Capacity and Mechanical Properties of the Semi Activated Carbon Fiber
    Fibers and Polymers, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Effects of Activated Carbon particle size on adsorption and mechanical properties of the semi Activated Carbon fiber (SACF) were studied. Four types of powder Activated Carbons including powders with particle size less than 150, 90, 50 μm and powder without any screening were used to prepare the coater adsorbent mixture for coating on E-glass fiber. Iodine number and BET surface area of the coated fibers were measured. The results showed that arrangement and screening of the powder Activated Carbon had positive effect on the adsorption capacity and surface area of the produced samples. Also, arrangement and decrease of Activated Carbon particle size led to improve mechanical properties of the produced samples.

Navid Saeidi – 2nd expert on this subject based on the ideXlab platform

  • Effects of Powder Activated Carbon Particle Size on Activated Carbon Monolith’s Properties
    Materials and Manufacturing Processes, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Methyl cellulose as organic binder and bentonite as clay binder were simultaneously used to prepare Activated Carbon monolith (ACM) using powder Activated Carbon (PAC) and by means of extrusion process. To study the effects of PAC particle size on porosity, adsorption, and mechanical properties of the ACMs, four broad types of PAC including powder with particle size less than 150, 90, 50 µm, and powder without screening were prepared and used. Actually, it was tried to improve the adsorption capacity, surface area, and mechanical strength (both compression and impact strength) of the ACMs by screening the PAC microparticles to certain particle sizes. The results showed that arranging and decreasing the PAC particle size significantly improved the above-mentioned properties.

  • A procedure to form powder Activated Carbon into Activated Carbon monolith
    The International Journal of Advanced Manufacturing Technology, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Activated Carbon monolith was prepared using powder-Activated Carbon, methyl cellulose as organic binder, and bentonite as clay binder. The used organic binder contrib- uted to the plasticity of powder-Activated Carbon for well ex- truding into well-shaped bodies, and the used clay binder con- tributed to the mechanical strength of the bodies. The bodies were characterized by determination of adsorption capacity, surface area, and mechanical strength (both compression and impactstrengths). After that, itwas endeavoredtoimprove the mentioned properties by sieving powder-Activated Carbon into a uniform distribution of particle size. The obtained results illustrated that making the particle size uniform led to improv- ing the bodies’ properties significantly.

  • Effects of Powder Activated Carbon Particle Size on Adsorption Capacity and Mechanical Properties of the Semi Activated Carbon Fiber
    Fibers and Polymers, 2015
    Co-Authors: Navid Saeidi, Mohammad Nader Lotfollahi

    Abstract:

    Effects of Activated Carbon particle size on adsorption and mechanical properties of the semi Activated Carbon fiber (SACF) were studied. Four types of powder Activated Carbons including powders with particle size less than 150, 90, 50 μm and powder without any screening were used to prepare the coater adsorbent mixture for coating on E-glass fiber. Iodine number and BET surface area of the coated fibers were measured. The results showed that arrangement and screening of the powder Activated Carbon had positive effect on the adsorption capacity and surface area of the produced samples. Also, arrangement and decrease of Activated Carbon particle size led to improve mechanical properties of the produced samples.

Ines Giraldez – 3rd expert on this subject based on the ideXlab platform

  • gallic acid water ozonation using Activated Carbon
    Applied Catalysis B-environmental, 2006
    Co-Authors: Fernando J Beltran, Juan F Garciaaraya, Ines Giraldez

    Abstract:

    The ozonation of gallic acid in water in the presence of Activated Carbon has been studied at pH 5. Hydrogen peroxide, ketomalonic and oxalic acids were identified as by-products. The process involves two main periods of reaction. The first period, up to complete disappearance of gallic acid, during which ozonation rates are slightly improved by the presence of Activated Carbon. The second one, during which Activated Carbon plays an important role as promoter, and total mineralization of the organic content of the water is achieved. The organic matter removal is due to the sum of contributions of ozone direct reactions and adsorption during the first period and to a free radical mechanism likely involving surface reactions of ozone and hydrogen peroxide on the Carbon surface during the second period. There is a third transition period where by-products concentration reach maximum values and ozonation is likely due to both direct and free radical mechanisms involving ozone and adsorption. Discussion on the mechanism and kinetics of the process is also presented both for single ozonation and Activated Carbon ozonation.