The search for clean technologies needs to be continued to offer alternatives for achieving sustainable energy production and a sustainable economy. This concern is particularly related to the demands of both producing enough renewable energy to meet future needs and reducing greenhouse gas (GHG) emissions. Microalgae are recognized for several benefits they offer, and in recent years, the use of life cycle assessment (LCA) to evaluate the benefits resulting from microalgae cultivation, harvesting/dewatering, biomass drying, extraction, and byproduct development has stimulated research in this area. Considering the importance of microalgae and clean technologies and the increasing number of publications on these subjects, this review aims to perform bibliometric mapping of such studies from 2008 to 2018. Web of Science and Scopus databases are used to identify leading trends. Visualization of similarities viewer (VOSviewer) software is applied to analyze the interactions among keywords. The results of this study indicate an association of microalgae and clean technologies and demonstrate that LCA is one of the most common tools used for such analyses. Bibliometric mapping provides relevant data to reinforce this association and understand the main bottlenecks that must be overcome in this field for future progress to be made.

中文翻译：

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微藻和清洁技术：回顾

需要继续寻求清洁技术，以提供实现可持续能源生产和可持续经济的替代方案。这种担忧尤其与既产生足够的可再生能源以满足未来需求又减少温室气体（GHG）排放的需求有关。微藻类因其提供的多种益处而受到公认，近年来，使用生命周期评估（LCA）评估微藻类种植，收获/脱水，生物质干燥，提取和副产物开发所产生的益处，刺激了该领域的研究。 。考虑到微藻类和清洁技术的重要性以及有关这些主题的出版物数量不断增加，本综述旨在对此类研究从2008年至2018年进行文献计量。Web of Science和Scopus数据库用于识别领先趋势。相似性查看器的可视化（VOSviewer）软件用于分析关键字之间的交互。这项研究的结果表明微藻类和清洁技术之间的联系，并表明LCA是用于此类分析的最常用工具之一。文献计量学制图提供了相关数据，以加强这种联系，并了解在该领域中必须克服的主要瓶颈，以便将来取得进展。