Department of Chemical Engineering.

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Influence of Organic Composite Material for Coating Application: A Review
(4th International Conference on Science and Sustainable Development (IOP Conf. Series), 2020) Adejumo O. A.; Fayomi O. S. I.
Composite materials have been used to coat products and substrates in different industries like Aerospace industry, Automobile industry;welding industry etc. The aim of this review is to describe the impacts and the effects of composite materials on coating applications in different industries. The first application mentioned was in the Aeronautic Industry, where powder (a composite material) is used to coat substrates. It has been studied and widely accepted as one of the most environmental friendly, economically beneficial and functional coating material. New types of powder coating are being developed to improve the aesthetic designs of Aeronautic and Automotive industries products. The second application was in the welding industry and its impacts on the electrode tool life was studied. The tool life is improved by 71% when TiC composite is used to coat the electrode.
Corrosion mitigating techniques and the mechanisms: Comment
(International Conference on Engineering for Sustainable World (IOP Publishing), 2021) Ayodeji A. I.; Fayomi O.S.I.; Babaremu K. O.; Abioye P. O.; Agboola O.; Daniyan A. A.
A lasting solution is required to curb the corrosion attack because of the very destructive effect it has on engineering materials. Corrosion is a material degrading phenomenon that reduces the significant properties of metallic materials, making them less useful. This paper has been able to highlight the very suitable methods or techniques that help to mitigate the effect of corrosion on metals and other helpful engineering materials. Some of these methods are electrodeposition and protective coatings like organic coatings, inorganic coatings, and metallic coatings.
Performance of mixed matrix nanofiltration membranes in wastewater treatment: A review
(International Conference on Engineering for Sustainable World (IOP Publishing), 2021) Agboola O.; Fayomi O.S.I.; Oni B.A.; Ayeni A.O.; Sadiku E.R.; Popoola A.P.I.; Moropeng I.; Adegbola S.T.; Daramola D.
Water covered close to 70% of the Earth’s surface; however, it is a struggle to access 3% of it as freshwater, suitable for human intake. The shortage of water has become a global issue due to climate change, pollution and the demand of growing freshwater. The fabrication of high performance and antifouling nanofiltration membranes are of utmost importance as a result of their capability of treating contaminated water and to also regulate the quality of freshwater. However, there is need for improvement in the fabrication of membrane using different nanofillers to produce mixed matrix membranes (MMMs). Mixed matrix nanofiltration membranes with nanofillers were reviewed for different applications
A Simplified Design for Biodiesel Production
(International Conference on Engineering for Sustainable World (IOP Publishing), 2021) Ayoola A. A.; Alagbe E. E.; Agboola O.; Ayeni O. A.; Adeyemi G. A.; Nnabuko D.; Makinwa
A review on the sustainable energy generation from the pyrolysis of coconut biomass
(Scientific African (Elsevier), 2021) Azeta Osarhiemhen; Ayeni A. O.; Agboola O.; Elehinafe Francis B.
he negative impacts of the extraction and exploration of fossil fuel on the environment and its depletion that has led to environmental degradation have encouraged researchers, stakeholders, and the government to explore alternative and renewable energy sources such as lignocellulosic biomass. Biomass pyrolysis has proven to be a viable energy conversion process over the last decade due to its low carbon footprint on the environment. Pyrolytic products that are bio-char, bio-oil, and bio-gas have several applications and contribute to our society’s industrial, commercial, and economic growth. This paper reviews the different types of pyrolytic processes using coconut biomass as a feedstock while focusing on the biomass properties that make it useful for pyrolysis and the factors affecting the process.
Role of Biomaterials in Automation
(International Conference on Energy and Sustainable Environment (IOP Publishing), 2021) Fayomi O. S. I.; Adedeji A. A.; Agboola O.; Ajala M. O.; Bolu C. A.; Banjo S. O.; Udoye N. E.
Technology in its real sense is in an advanced state to an extent that automation is the present-day mode of operating machinery and equipment. This technique of operating or controlling a process using a highly automatic means via electronic devices thereby reducing the human interface to a minimum, if not rather than eliminating it completely. Transformation of the global workforce has already begun through automation with innovations of robotics, artificial intelligence remote connectivity, additive manufacturing and medical innovations employing the automated means of delivering or administering drugs and performing surgery on patients. In the present day, various forms of automation are increasingly taking over the place of human thereby, putting a threat to supplant it. The role of biomaterials in automation is the main objective in this discuss. The study revealed that metals play a major role in biomaterials due to its excellent thermal conductivity and mechanical properties.
CONTROL OF FOSSIL FUEL GAS OPERATING CONDITIONS ON THE PERFORMANCE OF CARBON DIOXIDE CAPTURE PROCESS
(2021) Letsholo I.; Moropeng M. L.; Mavhungu A.; Agboola O.; Fayomi O. S. I.; Moropeng R. C.
Modelling and simulation of the volume flow of NH3, K2CO3 and for the Carbon dioxide absorption from coal
(2021) Nkhwashu M. I.; Moropeng M. L.; Agboola O.; Mavhungu A.,; Moropeng R. C.; Fayomi O. S. I.
Empirical assessment of ammonia and urea concentrations in wastewater from a pharmaceutical plant: A case study
(International Conference on Energy and Sustainable Environment (IOP Conf. Series), 2021) Sanni S E.; Odigure J. O.; Agboola O.; Emetere M. E.; Okoro E. E.; Audu C.
In several ways, urea is one of the most prominent sources of fixed nitrogen due to its relative abundance in waste water treatment plants. In this study, the wastewater effluent from X-Chemical Industries was considered for hazard analysis in order to ascertain the water quality and impact at the outfall effluent of company X relative to environmental standards. The study period is for December, 2013 – February 2014. Based on the results, it was observed that at the company’s sluice gate, the desorber (primary treatment unit) did not perform optimally. Also, the variation of the parameters measured i.e. urea concentration, pH and ammonia concentrations exceeded the standards established by the World Bank, International Finance Corporation (IFC) and the National Environmental Standards and Regulations Enforcement Agency (NESREA), i.e. against the specified standard of 100 ppm, higher concentrations include December 3, 9, 11, 12, 19, 20, 21, 24, 25, 27, 28 and 29 with corresponding urea concentrations of 1457, 1970.4, 122.7, 163.2, 150.3, 171.4, 148.76, 270.78, 178, 123, 101.33 and 250.43 ppm respectively, whereas that of ammonia is higher than 5 ppm on December 3, 21, 24, 25, 26, 27, 28 and 29 with corresponding concentrations of 8.4, 9.69, 8.13, 9.45, 12.5, 6.98, 22.95 and 9.95 respectively, whereas, it was lowest on other days. It was also observed that the treated waste water advancing the creek (jetty) close to the plant, will have environmental consequences on marine lives such as marine micro-flora as well as fishes.
Data on the effect of Ibruprofen drug derivative on 430T1 stainless steel in acid solutions
(International Conference on Engineering for Sustainable World (IOP Publishing), 2021) Sanni O.; Fayomi O. S. I.; Popoola A. P. I.; Agboola O.
Utilization of Bioresources: Towards Biomass Valorization for Biofuels
(Bioresource Utilization and Management, 2021) Sanni Samuel Eshorame; Agboola Oluranti; Moses Emetere; Okoro Emeka; Adefila Sam Sunday; Sadiku Rotimi; Alaba Peter
Biomass valorization has recently gained wide attention owing to the vast availability of wastes from which essential oils can be extracted, processed, and subsequently converted to energy utilities and value-added products by taking advantage of the free fatty acid contents of the parent bio-oils. The waste materials undergo a conversion process to give the prospective fuels. The two major final products of the conversion process are bioethanol and biodiesel. Recent findings have also indicated the usefulness of these products as intermediate products/raw materials for end products such as simple sugars or biolubes; this goes further to emphasize the huge potential in these substrates (agricultural wastes) when used as raw materials. In 252recent times, hydrogen from biomass is being sought as a means of energy to power cars, and this also brings to bear the need to underscore how far efforts have been made to introduce bioethanol-driven cars. Fossil fuels, besides being nonbiodegradable relative to bio-oils, are gradually being depleted, with no measures put in place for their replacement. This then suggests the need to look beyond the current situation for viable alternatives. This chapter provides background information on biofuels, their production processes, and their physicochemical characterization, application, and sustainability, since the world is like a vicious circle that currently tilts in the direction of "engineering for a sustainable world". Furthermore, the chapter unveils some gray areas of research that still remain untapped, thus opening up doors for revenue generation.
Surface effect of environmentally assisted corrosion growth of automotive welded steel performance
(Materials Proceedings Volume 38, Part 5, 2021-03) Fayomi O. S. I.; Samuel Olusegun David; Mashilo Matsobane; Popoola Abimbola Patricia; Agboola Oluranti; Balasubramanian Dhinesh
Failure of steel in automobile industries due to environmentally assisted medium in service is alarming. In this study an effort has been made to investigate critically the corrosion induced performances of automotive welded part. The experimental correlation on the effect of corrosive media (NaCl and HCl solutions) on the base metal, heat affected zone (HAZ) and weld metal formed were examined using linear potentiodynamic polarization technique. The hardness, microstructural and phase rationale of the studied joint was evaluated using, diamond base indenter, Scanning electron microscope and x-ray diffractograms respectively. The results revealed that the base metal has no detrimental phase transformation unlike the HAZ and the weld joint region. The hardness value of 185 HV welded joint was obtained compared to 235.95 HV of base region. The corrosion propagation in the 3.5NaCl and 1 M HCl shows that pitting deterioration occurs at the welded position in all case as a result of the shift in grain refinement and micro-straining during welding process.
Safety and Environmental Aspects of Cellulose Nanoparticles
(Cellulose Nanoparticles: Chemistry and Fundamentals, 2021-06-01) Fasiku Victoria Oluwaseun; Agboola Oluranti; Owonubi Shesan John; Revaprasadu Neerish; Sadiku E. R.
Nanoparticles made from cellulose are increasingly gaining attention in several fields for diverse applications, which can be attributed to their excellent properties. The physical, chemical, and mechanical properties of cellulosic nanomaterials are being studied to investigate their application in areas such as drug delivery, wound dressing, artificial tissues, and others. However, the safety and environmental aspects of cellulose nanoparticles (CNPs) are yet to be fully understood and established. The ambiguity surrounding their environmental health and safety remains a serious concern to the standards community. This chapter, therefore, provides information about the types of cellulose nanoparticles, and their various properties and the characterization techniques employed to provide useful information about their properties. It further proceeds to focus on the safety and environmental issues associated with cellulose nanoparticles and the handling practices which can be implemented to ensure maximum safety. This includes various safety techniques that have been developed as precautionary measures against the release and exposure of cellulose nanoparticles into the environment.
Fabrication and Potential Applications of Nanoporous Membranes for Separation Processes
(Environmental Nanotechnology Volume 5 (Springer, Cham), 2021-07-05) Agboola Oluranti; Popoola Patricia; Sadiku Rotimi; Sanni Samuel Eshorame; Babatunde Damilola Elizabeth; Ayoola Ayodeji; Abatan Olubunmi Grace
Innovative membrane processes are considered a very important segment of controllable separation processes, such as water treatment, gas separation and organic purification. One of the challenges in membrane technology is the challenge of selecting and fabricating membrane material for excellent selectivity and good permeability for selected particle sizes. The utmost operational challenge perturbing the performance of membrane technology is membrane fouling which occur as a result of insoluble materials covering the membrane surface, leading to a reduction in water quality. Other factors perturbing the performance of membrane technology are energy usage and greenhouse emission. Furthermore, the necessity to react to climate change is another major challenge for membrane technology. An excellent membrane should have high stiffness in order to withstand high pressures applied, large surface area and micro- or nanopore structures for excellent selectivity and good permeability for selected particle sizes. The transport of ions and fluid at molecular level, controlled at the nanometer-scale using membranes provide substantial capacity for high selectivity and high fluxes. The potential applications of nanoporous membranes are strongly subjected to the chemical and physical properties of a membrane material. The effective pores size, porosity, uniformity, thickness, surface chemistry and morphology also have influence on membrane separation performance. We reviewed the fabrication and potential applications of nanoporous membranes for separation processes, operational challenge, energy usage, greenhouse emission and effect of climate change. Thus, the major points, include: (1) fabrication methods of nanoporous membranes for excellent selectivity and good permeability for selected particle sizes, (2) Theoretical modeling and simulations of nanoporous membranes, (3) potential applications of nanoporous membranes, (4) the recent discovery of novel nanoporous membrane structures aimed at overcoming the challenge of fouling, (5) the challenge of energy usage, (6) addressing climate change as a contributing factor to the challenges of water treatment industry and membrane technology.
Gasific: A Python Tool for Biomass Gasification Process
(Advanced Manufacturing in Biological, Petroleum, and Nanotechnology Processing, 2022-04-04) Oladokun O.; Nyakuma B.; Luing W. S.; Oladimeji E.; Abatan O.; Ayeni A. O.; Agboola O.; Ayoola A. A.; Ojewunmi M. O.; Efeovbokhan V. E.
Biomass gasification and the production of syngas are important in the production of biohydrogen, a green fuel and an energy carrier for the fuel cell. The tool for the prediction of biohydrogen production from any biomass should be readily available to determine the viability of such biomass for gasification. The software implementing a robust gasification model is complex, proprietary, and expensive. In order to solve this problem, we developed Gasific, a software module for simple, free, and accurate biomass gasification product gas prediction. Gasific, implemented biomass gasification, stoichiometric equilibrium models, in Python and runs on a variety of platforms. We discussed the application of Gasific on biomass wastes, namely, Imperata cylindrica; the simulation shows good performance in predicting the gas composition product of gasification. The developed software and the code can be modified and applied to other scientific models and transform the models into software applications.
Review on coal-fired power plants from post-combustion CO2 process and challenges
(TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES21Gr, 2022-05) Agboola O.; Moropeng M. L.; Fayomi O. S. I.; Oyebanji J. A.; Oluwasegun K. M
The capturing of CO2 from power plant flue gases offers unique chance to alleviate the emissions of coal-fired power plants to the environment. The fraction of CO2 captured and the increased production of CO2 that results from loss in the whole efficiency of power plants are determinant factors for the net emissions reduction to the atmosphere via carbon dioxide capture storage. Post-combustion capture is of great interest as it is easy to implement as to existing power plants. The use of post combustion capture in power plant was reviewed. The challenges of post combustion process were reviewed with possible solutions.
Overview on Advancement of Sustainable Heterogeneous Catalysts for the Production of Biodiesel
(Bioenergy and Biochemical Processing Technologies, 2022-07) Efeovbokhan Vincent; Makinwa Tolu; Agboola Oluranti; Oladokun Olagoke
Biodiesel has comparable properties to diesel fuel; hence, it becomes a promising substitute to diesel fuel. The development of exceedingly effective biocatalyst is a key prerequisite for the production of biofuels, most especially biodiesel. Heterogeneous catalysts are regarded to be very prospective for transesterification process in biodiesel production owing to their numerous advantages, which include separation of catalyst from reaction mixture with ease, separation from reaction mixture with ease, regeneration, decreased corrosion, decreased cost and environmental friendliness. Heterogeneous catalysts can substitute homogeneous catalysts in situations that limit their efficiency. Hence, synthesized sustainable catalysts are required for increasing process performance, reduction in energy cost and production of cleaner products like ultralow sulphur biodiesel. Here, we gave a brief review on the advancement in sustainable heterogeneous catalysts for biodiesel production.
Short review on solvent resistance nanofiltration membranes for the treatment of waste water
(2022-08) Agboola O.; Fayomi O. S. I.; Sadiku R.; Popoola A. P. I; Adegbola A. T.; Moropeng I.; Oyebanji J. A.; Oluwasegun K. M.
With the potential wastewater generated in modern chemical industries, separation of organic at more extreme conditions is inevitable. On the account of finding a sustainable and effective separation, the preparation of solvent-resistant Nanofiltration (SRNF) membranes appeared to be a promising solution. In this review, a short overview on SRNF and its benefits was given. We highlighted the efforts made in using SRNF for some industrial applications like bio-refinery and petrochemical. The performance evaluation of SRNF for different applications was also discussed, briefly. Factors responsible for the Stability of SRNF membrane and classification of SRNF Membranes were also discussed.
Short overview on the mitigation of corrosion in coal gasification plant
(RESEARCH ARTICLE, 2022-08) Agboola O.; Fayomi O. S. I.; Adegbola A. T.; Moropeng I.; Sani S. E.
Tn a coal gasification plant the performance of components significantly degrade over time under extremely sulfiding environments of the extreme temperature coal gas. The use of newly discovered organic corrosion inhibitor such as DNA from plants and animals could mitigate corrosion in coal gasification plant. However, reports have revealed the deposition of an appropriate coating on a low cost alloy could enhance components resistance to the attack of sulfidation; hence, minimizing capital and working costs. Here, we review the coal gasification process and methods of mitigation corrosion in coal gasification plant
Short review on the prospect of laser cladding for aluminum based alloys composite for automotive industries
(RESEARCH ARTICLE, 2022-08) Agboola O.; Fayomi O. S. I.; Ayoola A.; Ayeni A. O.; Alagbe E. E.; Sadiku E. R.; Popoola P.
Laser cladding is a growing technological method that utilizes a navigating high power laser for melting a small region of the substrate; it has a function of trapping and melting entering powder particles. Hence, the process leads to the development of a new stratum. Aluminum alloy Matrix composites afford properties suchlike high wear resistance, high tensile strength, lightweight; this composites is finding wide applications in automotive industry. This review presents a brief discussion on laser cladding for aluminum base alloys for automotive industry with emphasis on aluminum alloys matrix composite for automotive industry.