Biomass Valorization to Bioenergy: Assessment of Biomass Residues’ Availability and Bioenergy Potential in Nigeria

Ezealigo, Uchechukwu S.; Ezealigo, Blessing N.; Kemausuor, Francis; Achenie, Luke E.K.; Onwualu, Azikiwe Peter

doi:10.3390/su132413806

Cited by 19 publications

(13 citation statements)

References 38 publications

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“…Projections of bioethanol potential at the district level showed an increased positive trend [24]. Ethanol production is heavily influenced by residue quantity, so particle size and enzymatic digestion are critical considerations [70].…”

Section: Discussionmentioning

confidence: 99%

Sustainable Biofuel Production from Animal Manure and Crop Residues in Ghana

Seglah

Wang

et al. 2022

Energies

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Renewable energy is predicted to play a crucial role in the energy sector as transitioning from fossil fuels to biofuels is key to achieving carbon neutrality. The comprehensive utilization of livestock manure and crop residues as a viable source of biofuels can play a significant role in Ghana’s future energy system. This current study aims to examine and predict the biofuel potential in Ghana from animal manure and crop residues. The biogas-biomethane potential of animal manure is determined using anaerobic digestion technology, whereas crop residues’ bioethanol potential is assessed using computational and analytical approaches. The findings demonstrate that animal manure biogas potential is 237.72 normal million cubic meters (NMm3). The highest manure-biogas potential per animal is from cattle (27.15 Nm3) and pigs (18.15 Nm3), while the least contribution is from chickens (1.80 Nm3). In addition, the annual bioethanol production is 3.74 gigaliters (GL), and residues from maize (0.88 GL), yams (0.82 GL), and plantains (0.47 GL) had the largest share per annum. By 2100, Ghana has the potential to produce 1288.56 NMm3 of manure-based biogas which can offset 13.88% of liquefied petroleum gas (LPG) consumption. The biogas potential positively correlates with the biomethane potential of 901.99 NMm3. Furthermore, 91.85% of the 14.76 GL of bioethanol will be from food crop residues. This study provides critical information to lawmakers and energy planners with strategies to achieve energy security and minimize the ecological footprint in an optimistic scenario.

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Section: Discussionmentioning

confidence: 99%

Sustainable Biofuel Production from Animal Manure and Crop Residues in Ghana

Seglah

Wang

et al. 2022

Energies

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“…Ben-Iwo et al [20] corroborated the assertion that biomass resources are abundant in Nigeria, reporting specifically that it could contribute about 80% of the total energy consumed in the country. In a similar study, Ezealigo et al [21] estimated that crop residues available in Nigeria could be processed into 8 Mtoe of cellulosic ethanol and 13 Mtoe of biogas each year, further reiterating the vast potential of biomass fuels for energy generation in the country. The same assertion was confirmed in the study by Jekayinfa et al [22] where bioenergy producible from several biomass resources in Nigeria was estimated at 2.3 EJ.…”

Section: Introductionmentioning

confidence: 98%

OPTIMAL DESIGN OF ORGANIC RANKINE CYCLE POWER PLANTS FOR EFFICIENT UTILIZATION of BIOMASS ENERGY IN NIGERIA

Oyekale

JOHN>

2023

Journal of Scientific Reports-A

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This study investigated the optimal design choice among four organic Rankine cycle (ORC) configurations for efficient utilization of solid biomass energy in Nigeria. Although vast opportunities exist for large-scale biomass power plants in the country, there has been little or no practical implementation yet, due to the limitation of technical know-how regarding thermodynamic conversion technologies. To bridge this gap, a thermodynamic optimization technique was applied in this study to the ORC. Specifically, the subcritical ORC (SUBORC), the regenerative subcritical ORC (SUBORC-REGEN), the supercritical ORC (SUPERORC), and the regenerative supercritical ORC (SUPERORC-REGEN) configurations were compared using established zero-dimensional optimization models implemented in MATLAB. Results showed that the SUPERORC-REGEN would be the most preferred choice amongst the options compared. Specifically, a palm kernel expeller (PKE) biomass fuel considered could yield about 1.98 MW of power at a thermal efficiency of about 28%. Additionally, it was obtained that the supercritical ORC would always outperform the subcritical types technically, with or without a regenerator. For the regenerative configurations, results showed that the supercritical ORC would generate 113 kW and 429 kW more net power than the subcritical ORC, respectively for n-pentane and n-butane working fluids. Similarly, the study reiterated that adopting a regenerative configuration would improve ORC performance. For instance, the SUPERORC-REGEN yielded 63% and 73% more power than the SUPERORC, respectively for n-pentane and n-butane working fluids. The practical economic implications of the different ORC configurations should be examined in future studies, alongside the investigation of exergy-based optimization potentials on component basis.

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“…Ebonyi state is one of the developing states in Nigeria that is highly endowed with enormous energy resources, both renewable and nonrenewable [1]. Despite the huge endowments in these energy resources, the state like other states in the country still depends solely on fossil fuel for her electricity supply to households, institutions and industries for privates and commercial utilizations.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the huge endowments in these energy resources, the state like other states in the country still depends solely on fossil fuel for her electricity supply to households, institutions and industries for privates and commercial utilizations. The depleting nature of the fossil energy sources, the rate at which carbon dioxide (CO2) is released into the atmosphere when they are burnt and the increasing demand of the world energy due to population growth coupled with technological advancement are the current challenges of continued dependence on fossil fuel [1]. This overdependence on fossil fuel has generated serious negative consequences on the state's economic growth and development, environment, climate and on the health sector.…”

Section: Introductionmentioning

confidence: 99%

Estimation of the Electrical Energy Potential of Rice Husk Biomass Generated within Ebonyi State, South Eastern Nigeria

Elem,

Nnamdi,

Elem

et al. 2023

BJI

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Nigeria’s energy sector has been ailing for the past two decades due to its excessive dependency on petroleum and lack of diversity in energy sources in the energy supply mix. To address this huge energy gap, biomass conversion power plant (BCPP) is considered as a “bridging solution”- allowing waste product to be used to generate power as an alternative to the high-emitting fossil fuels. Thus, this study was conducted to estimate the electrical energy potential of rice husk (RH) generated biomass within Ebonyi State, South East, Nigeria. RH accounts for approximately 20-23% of the total paddy rice weight with about 10 – 12% moisture. Presently, Ebonyi State produces about 300,000 metric tons (300,000,000Kg) of RH annually. The average percentage mass of the RH sample was calculated to be 21.33%. The BCPP analyzed result yields an average moisture and energy content (HHV) of 2.6% and 14.80MJ/Kg with a corresponding electricity output of 70.39KWh while the estimated result for the electrical energy potential of RH currently generated within the state was estimated to be 214.29MW per annum. This is a clear indication of the huge prospects that lie in the use of RH as feed stock for power generation within the State.

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Biomass Valorization to Bioenergy: Assessment of Biomass Residues’ Availability and Bioenergy Potential in Nigeria

Cited by 19 publications

References 38 publications

Sustainable Biofuel Production from Animal Manure and Crop Residues in Ghana

Sustainable Biofuel Production from Animal Manure and Crop Residues in Ghana

OPTIMAL DESIGN OF ORGANIC RANKINE CYCLE POWER PLANTS FOR EFFICIENT UTILIZATION of BIOMASS ENERGY IN NIGERIA

Estimation of the Electrical Energy Potential of Rice Husk Biomass Generated within Ebonyi State, South Eastern Nigeria

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