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首页> 外文期刊>Fuel >Safety and environmental reasons for the use of Ni-, Co-, Cu-, Mn- and Fe-based oxygen carriers in CLC/CLOU applications: An overview
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Safety and environmental reasons for the use of Ni-, Co-, Cu-, Mn- and Fe-based oxygen carriers in CLC/CLOU applications: An overview

机译：CLC / CLOU应用中使用Ni-，Cu-，Mn和Fe的氧载体的安全和环境原因：概述

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摘要

Chemical looping combustion (CLC) is presently considered as a cutting-edge combustion technology that enables capturing CO2 without major energy penalty for its separation. The technology involves the use of solid metal oxides, so-called oxygen carriers (OCs), which are alternately subjected to the redox reactions. In the last years, most investigations on the CLC process have been focused on the development of synthetic oxygen carriers, which are much more efficient and have greater resistance compared to natural materials. Synthetic OCs can be based on Ni-, Co-, Cu-, Mn- and Fe- oxides, the use of which however may cause various kinds of threats. The paper provides an overview of Ni, Co, Cu, Mn, and Fe-based OCs taking into account safety operation of CLC reactors as well as health and environmental issues. Therefore, the purpose of this work is to study the impact of different solid oxygen carriers on human beings, animals and natural environment. It has been revealed among others that OCs based on Ni- and Co- oxides may cause various environmental and health problems, while Cu-oxide might be hazardous especially for aquatic wildlife. Moreover, it was shown that Ni-based OCs have tendency to create Ni-S compounds, such as Ni3S2 or NiSO4, in reactions with combustible sulphur contained in the fuel. Toxicity investigations prove, for instance, that rats exposed to 15 mg/6h/day of NiSO4 die in 10 days after the test. Otherwise, Mn- and Fe- oxides are generally safe in use.
机译：将化学循环燃烧（CLC）目前被认为是尖端的燃烧技术，使得能够捕获CO2而没有重大能量损失的分离。该技术涉及使用固体氧化物，所谓的氧载体（OC等），其交替地进行氧化还原反应。在过去几年中，大多数对CLC进程的调查都集中在合成氧载体的开发中，与天然材料相比，这更有效，具有更大的阻力。合成OCS可以基于Ni-，Co，Cu - ，Mn和Fe氧化物，但是使用它可能导致各种威胁。本文概述了Ni，Co，Cu，Mn和Fe基OC，考虑到CLC反应器以及健康和环境问题。因此，这项工作的目的是研究不同固体氧携带者对人类，动物和自然环境的影响。据其他人揭示了基于NI-和共同氧化物的OCS可能导致各种环境和健康问题，而CU氧化物可能对水生野生动物造成危险。此外，结果表明，基于Ni的OC具有在燃料中包含的可燃硫的反应中产生Ni-S化合物，例如Ni3 S2或NISO 4。例如，毒性调查证明，在试验后10天内暴露于15mg / 6h /日的NISO 4死鼠。否则，使用Mn和Fe氧化物通常在使用中是安全的。

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  • 来源
    《Fuel》 |2020年第may15期|117245.1-117245.8|共8页
  • 作者

    Idziak Kamil; Czakiert Tomasz; Krzywanski Jaroslaw; Zylka Anna; Kozlowska Magdalena; Nowak Wojciech;

  • 作者单位

    Czestochowa Tech Univ Inst Adv Energy Technol Dabrowskiego 73 PL-42201 Czestochowa Poland;

    Czestochowa Tech Univ Inst Adv Energy Technol Dabrowskiego 73 PL-42201 Czestochowa Poland;

    Jan Dlugosz Univ Czestochowa Fac Sci & Technol Armii Krajowej Av 13-15 PL-42200 Czestochowa Poland;

    Jan Dlugosz Univ Czestochowa Fac Sci & Technol Armii Krajowej Av 13-15 PL-42200 Czestochowa Poland;

    Med Univ Lublin Dept Neurol Jaczewskiego 8 PL-20954 Lublin Poland;

    AGH Univ Sci & Technol Fac Energy & Fuels Adam Mickiewicz Av 30 PL-30059 Krakow Poland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Chemical looping combustion; Oxygen carrier; Metal oxides; Toxicity; CO2 capture;

    机译：化学环燃烧;氧载体;金属氧化物;毒性;二氧化碳捕获;

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