School of Infrastructure Process Engineering and Technology (SIPET)

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School of Infrastructure Process Engineering and Technology (SIPET)

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    Catalytic Degradation of Polyethylene to Gas Oil using Synthesized Clay Based Copper Modified Catalyst
    (Nigeria Journal of Engineering and Applied Sciences (NJEAS), 2015-04) Babatunde, E. O.; David, I.; Olutoye, M. A.; Akpan U. G.; Eterigho Elizabeth Jumoke
    In this study local clay was pretreated, characterized, modified and used as catalyst for the degradation of low-density polyethylene (LDPE). The raw clay was thermally treated at 800 °C for 4 h in a furnace which was later modified by incorporating copper into it through impregnation method. The functionalities of the catalyst were determined based on their characterization. X-ray diffraction, Fourier transform infrared, scanning electron microscope, X-Ray Florescence and surface area determination were done for both the raw clay and modified catalysts. Characterization of the catalysts revealed that the interaction between CuO/clay formed a synergetic mixed oxides and this is an important factor to its catalytic activity. The product obtained was analysed using Gas Chromatography-Mass Spectrometry and the product was mainly composed of hydrocarbons in the carbon range of C- C, which is the hydrocarbon range of gas oil (diesel) fraction. Also, the data obtained showed that at catalyst loading of 1.0 g, 5.0 g of polyethylene feedstock and reaction temperature of 250 °C, the yield of gas oil was 50.22%. The catalyst easily separates from the product mixture.
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    Production of Pavement Blocks Using Low Density Polyethylene Product Waste
    (SETIC 2022 International Conference: “Sustainable Development and Resilience of the Built Environment in the Era of Pandemic” School of Environmental Technology, Federal University of Technology, Minna 6th – 8th February, 2023., 2023) Aboje, A. A.; Abbas, B. A.; Kolo, D. N.; Abubakar, Mahmud; Abdulsalam, A.
    Waste sachet water packs cause considerable land pollution in Nigeria. In this research, pavement block was produced using low density polyethylene products waste (sachet water packs) as an alternative binder. The production was achieved by first converting the sachet water packs into pellets and blending it with sandstone in a mass ratio of 8:2 (A), 7:3 (B) and 6:4 (C) sandstone to pellets respectively. The compressive strength, %water absorption and curing time tests were carried out on the pavement block to determine it suitability and safety for low-traffic use. The compressive strength for polymer concrete samples A, B and C were 13.65N/mm2, 16.99N/mm2 and 20.34N/mm2 respectively. After carrying out the %water absorption test on the polymer concrete A, B and C the following result was obtained: 8.33%, 5.47% and 4.03% respectively. It should be noted that the polymer concrete samples and the control samples which (are cement concrete based) are for light-traffic use (pedestrian, plazas, shopping complexes ramps, car parks, office drive ways, rural roads with low traffic, and residential road).