Future prospects of biomass waste as renewable source of energy in Pakistan: A mini review

Ahmad, Waqas; Nisar, Jan; Anwar, Farooq; Muhammad, Faisal

doi:10.1016/j.biteb.2023.101658

Cited by 7 publications

(1 citation statement)

References 72 publications

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“…Decarbonization, or more extensively, the reduction in the environmental impacts associated with the energy sources, highly depends on a successful replacement of fossil fuels in the electricity grid mix [3][4][5][6]. Several research activities have been published or are currently involved in the evaluation of the potential use of biomass, especially as a by-product or waste, to increase the renewable fraction in energy mixes [7][8][9][10][11][12]. The wood fraction of biomass presents some advantages in terms of availability since the harvested amount is predicted to increase globally from 3.7 billion m 3 in 2010 to 5.7 billion m 3 in 2050 (+54%) [13].…”

Section: Introduction 1energy Biomass and Syngasmentioning

confidence: 99%

Life Cycle Assessment of a Wood Biomass Gasification Plant and Implications for Syngas and Biochar Utilization

Arfelli,

Tosi,

Ciacci

et al. 2024

Energies

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The growing attention regarding the environmental challenges in the energy sectors pushes the industrial system toward the investigation of more sustainable and renewable energy sources to replace fossil ones. Among the promising alternatives, biomass is considered a valid source to convert the system and to reduce the fossil fraction of the national energy mixes, but its multiple potential uses need an environmental evaluation to understand the actual benefit when it is used as an energy resource. For this purpose, life cycle assessment (LCA) is applied to a wood biomass gasification system aimed to produce electricity and heat generated after the combustion of the produced syngas and the management of the biochar. The aim is to provide a quantitative comparison of (i) a baseline scenario where wood biomass is sourced from waste and (ii) a second scenario where wood biomass is drawn from dedicated cultivation. A further evaluation was finally applied to investigate the environmental implications associated with the biochar composition, assuming it was used on land. The proposed strategies resulted in an environmental credit for both the examined scenarios, but the outcomes showed a net preference for the baseline scenario, resulting in better environmental performances for all the examined categories with respect to the second one. It underlines the potentialities of using waste-sourced biomass. However, according to the Climate Change category, if on-site dedicated biomass cultivation is assumed for the second scenario, the baseline is considered preferable only if the biomass transportation distance is <600 km, which is estimated as a theoretical distance for scenarios to break even. Finally, biochar composition proved a particular concern for toxicity-related categories. This study highlights the importance of applying objective and standardized methodologies such as LCA to evaluate energy production systems based on alternative sources and to support decision-making toward achieving sustainability goals.

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