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首页> 外文期刊>Fuel >Effect of native bacteria Sinomonas flava 1C and Acidithiobadllus ferrooxidans on desulphurization of Meghalaya coal and its combustion properties
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Effect of native bacteria Sinomonas flava 1C and Acidithiobadllus ferrooxidans on desulphurization of Meghalaya coal and its combustion properties

机译：天然细菌弗拉索氏单胞菌1C和酸性硫代氧化亚铁氧化铁对梅加拉亚邦煤的脱硫及其燃烧特性的影响

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摘要

Coal collected from Meghalaya state situated in northeastern (NE) region of India contains about 6.17% total sulphur (4.7% organic) with a gross calorific value of 26,208 J/g. In the present study, the coal sample was subjected to biodesulphurization along with optimization of various process parameters using a bacteria isolated from the native coal mine site. The native bacterium was identified to be Sinomonas flava 1C and reported first time for the capability to remove about 40% of sulphur from the coal. An innovative two-step sequential leaching using S. flava 1C followed by Acidithiobadllus ferrooxidans was used in the present study to enhance desulphurization. Sequential leaching resulted in 50-53% of sulphur removal from the coal sample. Sequential leaching reduced the sulphur content to 3.08% (organic 2.15% + pyritic 0.1% and 0.85% of sulphate sulphur) in -500+300 urn size fraction of coal. Analytical characterization indicated that the energy value of coal was not affected adversely due to the biodesulphurization process rather its calorific value increased from 26,208 J/g to 29,481 J/g.
机译：从位于印度东北（NE）地区的梅加拉亚邦（Meghalaya）收集的煤炭含有约6.17％的总硫（有机占4.7％），总热值为26,208 J / g。在本研究中，使用从原生煤矿现场分离出的细菌对煤样品进行了生物脱硫以及各种工艺参数的优化。天然细菌被鉴定为Sirmonas flava 1C，并首次报道其具有从煤中去除约40％硫的能力。在本研究中，使用了创新的两步法连续浸出法，即使用S. flava 1C继之以Acidithiobadllus ferrooxidans，以增强脱硫效果。顺序浸出导致从煤样品中脱除50-53％的硫。在-500 + 300 size的煤中，连续浸出将硫含量降低至3.08％（有机物为2.15％+黄铁矿为0.1％，硫酸盐为硫的0.85％）。分析表征表明，煤的能量值并未因生物脱硫过程而受到不利影响，而是将其热值从26,208 J / g增加至29,481 J / g。

著录项

  • 来源
    《Fuel》 |2014年第ptaa期|415-421|共7页
  • 作者

    S. Mishra; P.P. Panda; N. Pradhan; D. Satapathy; U. Subudhi; S. K. Biswal; B.K. Mishra;

  • 作者单位

    Academy of Scientific and Innovative Research, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    Academy of Scientific and Innovative Research, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    Academy of Scientific and Innovative Research, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India,Bioresources Engineering Department, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    Mineral Processing Department, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    Bioresources Engineering Department, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    Academy of Scientific and Innovative Research, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India,Mineral Processing Department, CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

    CSIR-lnstitute of Minerals and Materials Technology, Bhubaneswar 751013, India;

  • 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

    Biodesulphurization; Coal; Simomonas flava; Acidithiobacillus ferrooxidans; Organic sulphur;

    机译：生物脱硫;煤;西蒙纳斯酸性氧化硫杆菌有机硫;

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