Enhancing the commercial viability of commercial algal bioethanol production: The role of technological advancements

Q1 Environmental Science Bioresource Technology Reports Pub Date : 2024-09-01 DOI:10.1016/j.biteb.2024.101937

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Abstract

Malaysia's economic growth relies on depletable fossil fuels that raise atmospheric CO₂. Accordingly, researchers search for sustainable fuels that sequester significant levels of CO₂. Chlorella vulgaris meets these criteria, but high production costs hamper its adoption. The hypothesis is that technological advances improve the commercial viability of algal bioethanol. A large-scale agricultural model is modified to study algal cultivation. Algal bioethanol becomes competitive if algal producers experience an annual 2 % harvest yield gain or a 3 % annual production cost reduction. Algal bioethanol is predicted to produce 4249.21 megalitres in 2059 for harvest yield gains. It sequesters 9.72 megatons of CO₂-equivalent tailpipe emissions and 12.78 megatons of flue gas in 2059. Meanwhile, production cost reductions yield 1607.61 megalitres in 2064. It sequesters 3.68 megatons of CO₂-equivalent tailpipe emissions and 10.68 megatons of flue gas in 2059. Thus, the hypothesis is supported that technological advancements improve the commercial viability of algal bioethanol.

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提高商业藻类生物乙醇生产的商业可行性：技术进步的作用

马来西亚的经济增长依赖于会增加大气中二氧化碳含量的化石燃料。因此，研究人员正在寻找能大量封存二氧化碳的可持续燃料。小球藻符合这些标准，但高昂的生产成本阻碍了它的应用。假设是技术进步提高了藻类生物乙醇的商业可行性。为研究藻类种植，对大规模农业模型进行了修改。如果藻类生产者每年的收获产量提高 2%，或每年的生产成本降低 3%，藻类生物乙醇就会具有竞争力。据预测，2059 年藻类生物乙醇的产量为 4249.21 兆升，收成收益为 4249.21 兆升。到 2059 年，它可封存 972 万吨二氧化碳当量的尾气排放和 1278 万吨烟道气。同时，降低生产成本可在 2064 年获得 1607.61 百万公升的产量。到 2059 年，可封存 3.68 百万吨二氧化碳当量的尾气排放和 10.68 百万吨烟道气。因此，技术进步提高了海藻生物乙醇的商业可行性，这一假设得到了支持。

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