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Technical, Economical, and Climate-Related Aspects of Biochar Production Technologies: A Literature Review

机译:生物炭生产技术的技术,经济和气候方面:文献综述

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摘要

For the development of commercial biochar projects, reliable data on biochar production technologies is needed. For this purpose, peer-reviewed scientific articles on carbonization technologies (pyrorysis, gasification, hydro-thermal carbonization, and flash carbonization) have been analyzed. Valuable information is provided by papers on pyrorysis processes, less information is available on gasification processes, and few papers about hydrothermal and flash carbonization technologies were identified. A wide range of data on the costs of char production (between 51 US$ per tonne pyrorysis biochar from yard waste and 386 US$ per tonne retort charcoal) and on the GHG balance of biochar systems (between -1054 kg CO_2e and +123 kg CO_2e per t dry biomass feedstock) have been published. More data from pilot projects are needed to improve the evaluation of biochar production technologies. Additional research on the influence of biochar application on surface albedo, atmospheric soot concentration, and yield responses is necessary to assess the entire climate impact of biochar systems. Above all, further field trials on the ability of different technologies to produce chars for agricultural soils and carbon sequestration are essential for future technology evaluation.
机译:为了开发商业生物炭项目,需要有关生物炭生产技术的可靠数据。为此,分析了有关碳化技术(焦烧,气化,水热碳化和闪蒸碳化)的同行评议的科学文章。关于热解过程的论文提供了有价值的信息,关于气化过程的信息很少,并且关于热液和闪蒸碳化技术的论文很少。大量数据,包括炭的生产成本(庭院废物产生的每吨热解生物炭51美元,干馏炭产生的每吨386美元)以及生物炭系统的GHG平衡(-1054千克CO_2e至+123千克之间)每吨干生物质原料的二氧化碳排放量已经公开。需要更多来自试点项目的数据来改善生物炭生产技术的评估。为了评估生物炭系统对整个气候的影响,有必要对生物炭的应用对地表反照率,大气烟灰浓度和产量响应的影响进行进一步研究。最重要的是,进一步的田间试验,涉及不同技术生产用于农业土壤的炭和固碳的能力,对于将来的技术评估至关重要。

著录项

  • 来源
    《Environmental Science & Technology》 |2011年第22期|p.9473-9483|共11页
  • 作者单位

    Bioenergy Unit, Ecofys, 81243 Munchen, Germany;

    Soil Biogeochemistry, Martin-Luther-University Halle-Wittenberg, 06120 Halle, Germany;

    Unit of Technology of Fuels, RWTH Aachen, S2062 Aachen, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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