Main influence factors on desulfurization of coal by sulfolobas |
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Authors: | He De-wen Peng Chang-hong and Wang Yun-yan |
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Affiliation: | (1) School of Metallurgical Science and Engineering, Central South University, 410083 Changsha, China |
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Abstract: | By orthodox experiment, the main influence factors of desulfurization by sul folobas of pH value, temperature, coal slurry concentration and coal granularity are studied in detail and the optimal experimental
conditions were also obtained. The experimental results demonstrate that sul folobas being kind of linking-heat, acidophilic and self-supported bacterium with double characters can effectively remove inorganic
and organic sulfur in coal. The superlatively desulfurization rate is up to 48.57% total sulfur and 41.71% inorganic sulfur
within 10 d and its desulfurization rate can be greatly affected by the four factors above mentioned. Therefore, the optimum
conditions of desulfurization are obtained by comprehensive experiment and they are as following: pH value 3, temperature
70°C, coal slurry concentration 10% and coal granularity 150 μm, respectively. Moreover, the repetition experimental results
confirm that the desulfurization by sul folobas is steady.
Foundation item: The National Advanced Technology Research and Development Project (863 Project 2002AA649220)
Biography of the first author: HE De-wen, postdoctor, born in April 1968, majoring in solid waste pollution control and resource, environmental assessment
and plan. |
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Keywords: | sul folobas desulfurization orthodox experiment |
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