文章基本信息

标题：Perspectives on Bioenergy Feedstock Development in Pakistan: Challenges and Opportunities
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作者：Athar Mahmood ; Xiukang Wang ; Ahmad Naeem Shahzad 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2021
卷号：13
期号：15
页码：8438
DOI：10.3390/su13158438
语种：English
出版社：MDPI, Open Access Journal
摘要：Pakistan faces challenges in both food and energy security. Indeed, extensive literature suggests that food and energy security are interdependent. While acknowledging that food security is still a primary concern for Pakistan, energy security is also a major issue. It is crucial to develop sustainable energy sources for energy production. Among sustainable sources, biomass is a promising source that can be effectively used for environmentally friendly energy production. This article addresses the energy issues and potential solutions using crop residues, non-edible energy crops, and animal and municipal solid wastes in Pakistan. The current research challenges, relevant industries, opportunities, and the future share of energy production derived from renewable and sustainable sources are emphasized with a focus on the potential of biomass energy. This article shows that Pakistan has considerable potential to develop bioenergy crops on marginal lands without compromising food security, with considerable greenhouse gas (GHG) benefits. Pakistan has vast biomass resources, including crop residues, animal waste, municipal solid waste, and forest residues, which collectively produce 230 billion tons of biomass annually. There are about 72 million bovines (cows and buffaloes), 81 million tons per year of crop biomass, and about 785 million birds in poultry farms across the country. Land that is currently non-productive could be used for energy crops, and this has the potential to produce 2500–3000 MW of energy. The utilization of waste cooking oil and fats is the most economically feasible option for obtaining biodiesel due to its easy and almost free availability in Pakistan. Systematic management is needed to collect this huge quantity of waste cooking oil and efficiently convert it to biodiesel. Similarly, molasses may be a promising source for bioethanol production. Furthermore, this study suggests that Pakistan’s energy policies need to be amended to ensure that the energy supply meets the demand. In the future, massive energy projects on biomass-based bioenergy need to be implemented in Pakistan. To achieve its bioenergy potential, Pakistan needs to develop incentive-based bioenergy technologies. Moreover, this objective can only be achieved in the country by initiating R&D projects to promote advanced biomass conversion technologies, such as biogas plants and combustion systems.