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首页> 外文期刊>Bioprocess and Biosystems Engineering >Biological assisted organic sulfur removal from low rank indigenous coal using airlift bioreactor
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Biological assisted organic sulfur removal from low rank indigenous coal using airlift bioreactor

机译：使用空运生物反应器从低等级的生物辅助有机硫去除土着煤

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摘要

Combustion of coal create many harmful gases which effect on human health as well as on environment. The sulfur in coal limits its own use, and bio-desulfurization (BDS) shows enormous development potential and the prospects for the application of coal desulfurization. Present study highlights the bioprocess strategies for reduction of sulfur content from coal before combustion. The bioprocess involved the use of Airlift Bioreactor along withRhodococcus sp. ATCC55309 as biocatalyst. Different nutritional and operational parameters involved to promote sulfur reduction at maximum level. The parameters were investigated are different carbon source, temperature, pH, Agitation speed, and pulp density. The impact of these parameters shows that sulfur removal can be enhanced though optimized conditions. The amount of total sulfur and organic sulfur present in coal were reduced by 33 +/- 1.7% and 71 +/- 1.5%, respectively, compared to untreated coal at controlled condition of various parameters are 20% (w/v) pulp density, 30 degrees C, 170 rpm, glucose as carbon source and pH 7. Whereas organic sulfur degrades from coal usingRhodococcus sp. ATCC55309 about 0.36 mM DBT (Di-benzothiophene) within 8 days via 4S-pathway. The maximum conversion of DBT compound into 2-HBP(2-hydroxybiphenyl) by utilizing 30 degrees C, 170 rpm, 20 pulp density and glucose as carbon source.
机译：煤炭燃烧会产生许多有害气体，对人类健康以及环境影响。煤中的硫限制自身使用，生物脱硫（BDS）表现出巨大的发展潜力和应用煤脱硫的前景。目前的研究强调了燃烧前煤中硫含量的生物过程策略。 BioProcess涉及使用Airlift生物反应器沿Rhodococcus sp。 ATCC55309作为生物催化剂。不同的营养和操作参数涉及促进最高水平的硫。研究参数是不同的碳源，温度，pH，搅拌速度和纸浆密度。这些参数的影响表明，尽管优化条件，可以提高硫去除。煤中存在的总硫和有机硫的量分别减少了33 +/- 1.7％和71 +/- 1.5％，与在各种参数的受控条件下的未处理煤相比是20％（w / v）纸浆密度，30℃，170rpm，葡萄糖作为碳源和pH 7.而有机硫从煤中脱落，使用Rhodococcus sp。通过4S途径在8天内atCC55309约0.36mm DBT（二苯并噻吩）。通过利用30℃，170rpm，20个纸浆密度和葡萄糖作为碳源，将DBT化合物的最大转化为2-HBP（2-羟基苯基）。

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