Sustainable bio-energy production models for eradicating open field burning of paddy straw in Punjab, India
Sustainable bio-energy production models for eradicating open field burning of paddy straw in Punjab, India
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DOI：
10.1016/j.energy.2017.03.138
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发表时间：
2017-05
期刊：
影响因子：
9
通讯作者：
Abhinav Trivedi;Amit R. Verma;Supreet Kaur;Bhaskar Jha;V. Vijay;Ram Chandra;V. Vijay;P. Subbarao;R. Tiwari;P. Hariprasad;R. Prasad
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文献类型：
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作者：
Abhinav Trivedi;Amit R. Verma;Supreet Kaur;Bhaskar Jha;V. Vijay;Ram Chandra;V. Vijay;P. Subbarao;R. Tiwari;P. Hariprasad;R. Prasad
水稻收获机械化导致了水稻秸秆的露天焚烧。燃烧百万吨水稻秸秆释放出巨大的温室气体，对区域大气化学造成扰动。本文介绍了一个利用水稻秸秆发电生产生物甲烷和生物乙醇的商业规模和改进的生物质炉灶在家庭规模的案例研究。比较了三种方案（生物甲烷、生物乙醇和改进型生物质炉灶的颗粒）的能源经济性和排放。研究表明，如果水稻秸秆不被燃烧，它可以有效地用于生物甲烷化和生物乙醇生产，分别可以产生8.0 GJ/吨和5.6 GJ/吨的能量当量，而颗粒化的水稻秸秆可以用于改进的生物质炉灶，以满足热烹饪能量需求，减少室内空气污染。分析进一步表明，水稻秸秆的生物甲烷化可使净全球变暖潜力减少2750二氧化碳当量千克排放量/吨。然而，生物乙醇生产显示出净全球变暖潜势减少2549二氧化碳当量千克排放量/吨。用于改进炉灶的水稻秸秆颗粒化显示出2459 CO2 e kg排放/吨的净全球变暖潜势减少。
The mechanized harvesting of paddy crop has led into open field burning of paddy straw. Burning of million tonnes of paddy straw releases huge potent greenhouse gases which creates perturbations to regional atmospheric chemistry. This paper presents a case study on utilization of paddy straw for power generation through biomethane and bioethanol production on commercial scale and improved biomass cookstove on domestic scale. Three scenario (biomethane, bioethanol and pellet for improved biomass cookstove) have been compared for their energy economics and emission. It has been revealed that if paddy straw is not being burned, it can be effectively utilized for biomethanation and bioethanol production which can yield energy equivalent of 8.0 GJ/tonne and 5.6 GJ/tonne, respectively, while pelletized paddy straw can be used in improved biomass cookstoves to meet out thermal cooking energy requirement with reduced indoor air pollution. The analysis further revealed that biomethanation of paddy straw reduces net global warming potential by 2750 CO2e kg emissions/tonne. However, bioethanol production showed net global warming potential reduction of 2549 CO2e kg emissions/tonne. The pelletization of paddy straw for improved cookstove showed net global warming potential reduction of 2459 CO2e kg emissions/tonne.