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Jacob Sonibare

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ufuk sancar Vural

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Oyinlola R Obanla

Prof. Elijah A. Taiwo

Obafemi Awolowo University, Ile-Ife, Nigeria

North Maharashtra University

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Papers by Jacob Sonibare

A Review on Treatment Methods Ofused Lubricating Oil

Disposing used lubricating oil (ULO) through local means has been found to lead to air, land and ... more Disposing used lubricating oil (ULO) through local means has been found to lead to air, land and water pollution. This pollution lowers the lifespan of inhabitants due to spread of diseases. Treatment of used oil is one of the easiest way to avoid pollution as observed in literatures. Aside preventing pollution, another advantage is majorly turning waste to wealth. In this paper, an indebt review was done on the various methods for treating used lubricating oil. The advantages and shortcomings of each method were highlighted for further study.

Global Warming Implication of Natural Gas Combustion

Handbook of Combustion, Jul 15, 2010

Page 1. 2 Global Warming Implication of Natural Gas Combustion Jacob Ademola Sonibare 2.1 Introdu... more

ED-XRF analysis of wet deposition around metal recycling plant

Ife Journal of Science, Nov 14, 2017

A Critical Review of Natural Gas Flares-Induced Secondary Air Pollutants

Global Nest Journal, Apr 30, 2013

Application of material balance analysis (in one of our previous studies) to natural gas flare in... more Application of material balance analysis (in one of our previous studies) to natural gas flare in the upstream petroleum operations confirmed the emission of primary air pollutants in form of CO, CO 2 , NO, and NO 2 from "sweet" natural gas while "sour" gas emits SO 2 in addition; incomplete combustion may be an impetus for the release of volatile organic compounds (VOCs) into the atmosphere from this same source. In this article, the significance of these gaseous emissions in the formation of secondary air pollutants in the atmosphere is reviewed for the purpose of air pollution control strategy. The goal is to describe the formation mechanism, to determine the influencing factors in formation along with environmental impacts and to identify the required technological and policy control approach for an improved environmental protection.

Investigation of Co and So2 from Acid Clay Treatment of used Lubricating Oil

IOP conference series, Sep 10, 2018

Recycling and treatment processes is one of the acceptable means to reduce the effect of pollutio... more Recycling and treatment processes is one of the acceptable means to reduce the effect of pollution from used oil. These recycling methods save some amount of time and money and also helps to conserve our natural resources. However, various methods have been used for used oil treatment which has resulted in toxic air emissions. This work monitored the emissions of Carbon Monoxide (CO) and Sulphur Dioxide (SO2) from used lubricating oil using a combustion analyzer. CO emission was found to be the highest emitted pollutant with MEC of 167.07 mg/m 3 due to incomplete combustion. Also, CO concentration at dehydration exceeded the set limits which could cause adeverse effect to receptor locations while SO2 was within the limit. Hence, quantifying the emissions at each stage of this process is needed to control emissions in the sector. The predicted results in this study can help decision makers to formulate policy for controlling the impact of air emissions from used lube oil treatment plants using acid-clay treatment method.

Periodic characterization of alkyl-naphthalenes in stack gas and ambient air around a medical waste incinerator

Environmental Science and Pollution Research, Aug 3, 2017

Annual estimates of air pollutants from utilization of diesel as energy source at base transceiver stations

Environmental Quality Management, Dec 1, 2018

Toxicity potential of particulate in the airshed of a university farm

IOP conference series, Mar 27, 2020

Criteria air pollutants from cement production in Nigeria

Environmental Quality Management, Sep 1, 2018

This study aims at determining the impact of uncontrolled criteria air pollutants on air quality.... more This study aims at determining the impact of uncontrolled criteria air pollutants on air quality. The research estimates the emissions of criteria air pollutants from existing and proposed cement production facilities using the emission factor approach. The emissions from the existing plants for particulate matter (PM), sulfur dioxide (SO 2), oxides of nitrogen (NO x), carbon dioxide (CO 2), and lead ranged between 0.031 and 354,240 tons per annum; 9.07 and 31,953.6 tons per annum; 5.04 and 17,750 tons per annum; 0.173 and 621.12 tons per annum; and 0.033 and 354.72 tons per annum; respectively, while estimated values for proposed plants for PM, SO 2 , NO x , CO, and lead ranged between 1.2 and 134,995.2 tons per annum; 35.52 and 13,497.6 tons per annum; 19.728 and 7,497 tons per annum, 0.67 and 264 tons per annum; and 0.096 and 148.80 tons per annum; respectively. PM emissions had the highest values, while values for SO 2, NO x , CO, and Pb followed in decreasing order. Consistent use of emission control systems and substitution of kiln fuels with alternative fuels can help reduce the impact of cement production on air quality.

Air pollution implications of Nigeria’s present strategy on improved electricity generation

Energy Policy, Oct 1, 2010

ABSTRACT One of the strategies being developed in Nigeria to increase the presently installed ele... more ABSTRACT One of the strategies being developed in Nigeria to increase the presently installed electricity generation of 6159 MW to the required 30,000 MW is the adoption of electric thermal plants. An emission factor approach is used in this paper to study the emission of uncontrolled air pollutants from all the existing and proposed thermal plants in the country. Calculations are performed to study the distribution of carbon monoxide (CO), oxides of nitrogen (NOX), particulate matters (PM), sulphur dioxide (SO2), and volatile organic compounds (VOCs). The estimated emissions ranges are 978–24,607, 1635–41,148, 37–924, 19–472, and 11–286 ton/annum for CO, NOX, PM, SO2, and VOCs, respectively. The present locations of these plants across the country are characterized by skewed emission distribution both per capita and across the land. Given the potential environmental and health impacts of these emissions, several measures are suggested to reduce future impacts and assist the country in achieving sustainable development.

Potential Utilization of Nigerian Heavy Oil as Burner Fuel: A Case Study of Combustion Characteristics of Agbabu Heavy Oil

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Dec 11, 2015

The potential substitution of Nigerian heavy oil resource (Agbabu bitumen) for boiler fuel is pre... more The potential substitution of Nigerian heavy oil resource (Agbabu bitumen) for boiler fuel is presently being investigated. Combustion of 70–30% (wt/wt) heavy oil–kerosene blend, 70–30% (wt/wt) of heavy oil–diesel blend, and 50–50% (wt/wt) heavy oil–low pour fuel oil blend resulted in flame temperatures of 1240, 1220, and 1220°C, at flammability limits of 0.33–0.52, 0.40–0.60, and 0.45–0.60 air-fuel ratio, respectively. In comparison, combustion of 100% diesel and 100% low pour fuel oil, under similar conditions, generated flame temperatures of 1235 and 1238°C, respectively. The above results for heavy oil/distillate blends clearly suggest a facile application as boiler fuel.

Fuzzy Hybrid Modeling of a Reactive Distillation Column for Ethyl

The complex interactions between vapour-liquid equilibrium, mass and energy transports and reacti... more The complex interactions between vapour-liquid equilibrium, mass and energy transports and reaction kinetics in reactive distillation (RD) process have constituted serious computational challenges to its modelling and control. This is because large numbers of nonlinear differential - algebraic equations are needed to represent the process when using first principle modelling approach. This work developed simplified model RD with the essential nonlinear characteristics relevant to control design purpose but with reduced computational demand. A Continuous RD flow sheet for ethyl acetate process was designed using a commercial simulator (ASPEN) to generate relevant dynamic data for model development. A hybrid Fuzzy Hammerstein (FH) model consisting nonlinear fuzzy model and linear state space model was then developed. The developed model was compared with linear autoregressive input exogenous (ARX) and nonlinear autoregressive input exogenous (NARX). The developed FH model has the order of [8, 8, 8, 8, 8] for dynamic linear part and 300 parameters consisting of 192 premise parameters and 108 consequent parameters for static nonlinear part. The output variables were temperature on trays 9 and 29 (T9 and T29) of the column. The values of root mean square error (RMSE) for the three models RMSE (ARX: 0.951; NARX: 0.75 and FH: 0.011) and RMSE (ARX: 0.961; NARX: 0.79 and FH: 0.015) obtained for T 9 and T29 respectively show that FH model outperforms the other two models. Correlation tests showed that FH model mostly described the dynamic nature of the process as it passed both whiteness and independent test criteria at p < 0.01.

An Estimation of a trace gaseous emission factor from combustion of common fuelwood species in South-western Nigeria

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Jun 18, 2017

Indoor levels of polycyclic aromatic hydrocarbons (PAHs) from environment tobacco smoke of public bars

Ecotoxicology and Environmental Safety, 2021

Impact Assessment of a Solid Waste Dump Site on it Host Environment: Noise and Particulate Matter

SSRN Electronic Journal

Quantifications and predictions of sectoral pollutants emissions in Nigeria from 1980 to 2050

Environmental Monitoring and Assessment

Air Quality Implication of Solid Waste Incineration in Lagos

Particulate matters pollution in selected areas of Nigeria: Spatial analysis and risk assessment

Case Studies in Chemical and Environmental Engineering

Theoretical Air Requirement and Combustion Flue Gases Analysis for Indigenous Biomass Combustion

Journal of Nigerian Society of Physical Sciences, Sep 19, 2022

COVID-19 induced restriction in developing countries and its impacts on pollution load: case study of Lagos mega city

Heliyon

A Review on Treatment Methods Ofused Lubricating Oil

Disposing used lubricating oil (ULO) through local means has been found to lead to air, land and ... more Disposing used lubricating oil (ULO) through local means has been found to lead to air, land and water pollution. This pollution lowers the lifespan of inhabitants due to spread of diseases. Treatment of used oil is one of the easiest way to avoid pollution as observed in literatures. Aside preventing pollution, another advantage is majorly turning waste to wealth. In this paper, an indebt review was done on the various methods for treating used lubricating oil. The advantages and shortcomings of each method were highlighted for further study.

Global Warming Implication of Natural Gas Combustion

Handbook of Combustion, Jul 15, 2010

Page 1. 2 Global Warming Implication of Natural Gas Combustion Jacob Ademola Sonibare 2.1 Introdu... more

ED-XRF analysis of wet deposition around metal recycling plant

Ife Journal of Science, Nov 14, 2017

A Critical Review of Natural Gas Flares-Induced Secondary Air Pollutants

Global Nest Journal, Apr 30, 2013

Application of material balance analysis (in one of our previous studies) to natural gas flare in... more Application of material balance analysis (in one of our previous studies) to natural gas flare in the upstream petroleum operations confirmed the emission of primary air pollutants in form of CO, CO 2 , NO, and NO 2 from "sweet" natural gas while "sour" gas emits SO 2 in addition; incomplete combustion may be an impetus for the release of volatile organic compounds (VOCs) into the atmosphere from this same source. In this article, the significance of these gaseous emissions in the formation of secondary air pollutants in the atmosphere is reviewed for the purpose of air pollution control strategy. The goal is to describe the formation mechanism, to determine the influencing factors in formation along with environmental impacts and to identify the required technological and policy control approach for an improved environmental protection.

Investigation of Co and So2 from Acid Clay Treatment of used Lubricating Oil

IOP conference series, Sep 10, 2018

Recycling and treatment processes is one of the acceptable means to reduce the effect of pollutio... more Recycling and treatment processes is one of the acceptable means to reduce the effect of pollution from used oil. These recycling methods save some amount of time and money and also helps to conserve our natural resources. However, various methods have been used for used oil treatment which has resulted in toxic air emissions. This work monitored the emissions of Carbon Monoxide (CO) and Sulphur Dioxide (SO2) from used lubricating oil using a combustion analyzer. CO emission was found to be the highest emitted pollutant with MEC of 167.07 mg/m 3 due to incomplete combustion. Also, CO concentration at dehydration exceeded the set limits which could cause adeverse effect to receptor locations while SO2 was within the limit. Hence, quantifying the emissions at each stage of this process is needed to control emissions in the sector. The predicted results in this study can help decision makers to formulate policy for controlling the impact of air emissions from used lube oil treatment plants using acid-clay treatment method.

Periodic characterization of alkyl-naphthalenes in stack gas and ambient air around a medical waste incinerator

Environmental Science and Pollution Research, Aug 3, 2017

Annual estimates of air pollutants from utilization of diesel as energy source at base transceiver stations

Environmental Quality Management, Dec 1, 2018

Toxicity potential of particulate in the airshed of a university farm

IOP conference series, Mar 27, 2020

Criteria air pollutants from cement production in Nigeria

Environmental Quality Management, Sep 1, 2018

This study aims at determining the impact of uncontrolled criteria air pollutants on air quality.... more This study aims at determining the impact of uncontrolled criteria air pollutants on air quality. The research estimates the emissions of criteria air pollutants from existing and proposed cement production facilities using the emission factor approach. The emissions from the existing plants for particulate matter (PM), sulfur dioxide (SO 2), oxides of nitrogen (NO x), carbon dioxide (CO 2), and lead ranged between 0.031 and 354,240 tons per annum; 9.07 and 31,953.6 tons per annum; 5.04 and 17,750 tons per annum; 0.173 and 621.12 tons per annum; and 0.033 and 354.72 tons per annum; respectively, while estimated values for proposed plants for PM, SO 2 , NO x , CO, and lead ranged between 1.2 and 134,995.2 tons per annum; 35.52 and 13,497.6 tons per annum; 19.728 and 7,497 tons per annum, 0.67 and 264 tons per annum; and 0.096 and 148.80 tons per annum; respectively. PM emissions had the highest values, while values for SO 2, NO x , CO, and Pb followed in decreasing order. Consistent use of emission control systems and substitution of kiln fuels with alternative fuels can help reduce the impact of cement production on air quality.

Air pollution implications of Nigeria’s present strategy on improved electricity generation

Energy Policy, Oct 1, 2010

ABSTRACT One of the strategies being developed in Nigeria to increase the presently installed ele... more ABSTRACT One of the strategies being developed in Nigeria to increase the presently installed electricity generation of 6159 MW to the required 30,000 MW is the adoption of electric thermal plants. An emission factor approach is used in this paper to study the emission of uncontrolled air pollutants from all the existing and proposed thermal plants in the country. Calculations are performed to study the distribution of carbon monoxide (CO), oxides of nitrogen (NOX), particulate matters (PM), sulphur dioxide (SO2), and volatile organic compounds (VOCs). The estimated emissions ranges are 978–24,607, 1635–41,148, 37–924, 19–472, and 11–286 ton/annum for CO, NOX, PM, SO2, and VOCs, respectively. The present locations of these plants across the country are characterized by skewed emission distribution both per capita and across the land. Given the potential environmental and health impacts of these emissions, several measures are suggested to reduce future impacts and assist the country in achieving sustainable development.

Potential Utilization of Nigerian Heavy Oil as Burner Fuel: A Case Study of Combustion Characteristics of Agbabu Heavy Oil

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Dec 11, 2015

The potential substitution of Nigerian heavy oil resource (Agbabu bitumen) for boiler fuel is pre... more The potential substitution of Nigerian heavy oil resource (Agbabu bitumen) for boiler fuel is presently being investigated. Combustion of 70–30% (wt/wt) heavy oil–kerosene blend, 70–30% (wt/wt) of heavy oil–diesel blend, and 50–50% (wt/wt) heavy oil–low pour fuel oil blend resulted in flame temperatures of 1240, 1220, and 1220°C, at flammability limits of 0.33–0.52, 0.40–0.60, and 0.45–0.60 air-fuel ratio, respectively. In comparison, combustion of 100% diesel and 100% low pour fuel oil, under similar conditions, generated flame temperatures of 1235 and 1238°C, respectively. The above results for heavy oil/distillate blends clearly suggest a facile application as boiler fuel.

Fuzzy Hybrid Modeling of a Reactive Distillation Column for Ethyl

The complex interactions between vapour-liquid equilibrium, mass and energy transports and reacti... more The complex interactions between vapour-liquid equilibrium, mass and energy transports and reaction kinetics in reactive distillation (RD) process have constituted serious computational challenges to its modelling and control. This is because large numbers of nonlinear differential - algebraic equations are needed to represent the process when using first principle modelling approach. This work developed simplified model RD with the essential nonlinear characteristics relevant to control design purpose but with reduced computational demand. A Continuous RD flow sheet for ethyl acetate process was designed using a commercial simulator (ASPEN) to generate relevant dynamic data for model development. A hybrid Fuzzy Hammerstein (FH) model consisting nonlinear fuzzy model and linear state space model was then developed. The developed model was compared with linear autoregressive input exogenous (ARX) and nonlinear autoregressive input exogenous (NARX). The developed FH model has the order of [8, 8, 8, 8, 8] for dynamic linear part and 300 parameters consisting of 192 premise parameters and 108 consequent parameters for static nonlinear part. The output variables were temperature on trays 9 and 29 (T9 and T29) of the column. The values of root mean square error (RMSE) for the three models RMSE (ARX: 0.951; NARX: 0.75 and FH: 0.011) and RMSE (ARX: 0.961; NARX: 0.79 and FH: 0.015) obtained for T 9 and T29 respectively show that FH model outperforms the other two models. Correlation tests showed that FH model mostly described the dynamic nature of the process as it passed both whiteness and independent test criteria at p < 0.01.

An Estimation of a trace gaseous emission factor from combustion of common fuelwood species in South-western Nigeria

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Jun 18, 2017

Indoor levels of polycyclic aromatic hydrocarbons (PAHs) from environment tobacco smoke of public bars

Ecotoxicology and Environmental Safety, 2021

Impact Assessment of a Solid Waste Dump Site on it Host Environment: Noise and Particulate Matter

SSRN Electronic Journal

Quantifications and predictions of sectoral pollutants emissions in Nigeria from 1980 to 2050

Environmental Monitoring and Assessment

Air Quality Implication of Solid Waste Incineration in Lagos

Particulate matters pollution in selected areas of Nigeria: Spatial analysis and risk assessment

Case Studies in Chemical and Environmental Engineering

Theoretical Air Requirement and Combustion Flue Gases Analysis for Indigenous Biomass Combustion

Journal of Nigerian Society of Physical Sciences, Sep 19, 2022

COVID-19 induced restriction in developing countries and its impacts on pollution load: case study of Lagos mega city

Heliyon