【摘要】 利用氧化亚铁硫杆菌对煤中硫分的脱除作用,探讨了其对3种不同地域且不同矿物含量煤的脱硫作用。进行了未酸化与酸化处理煤样脱硫试验、温度影响试验、初始pH值影响试验。结果表明:未预处理条件下煤样Ι、Π、Ш的脱硫率分别为29.3%、3.9%、3.5%,酸处理后达到39.8%、40.7%、4.2%。煤样Ι、Π的最佳脱硫温度分别为35℃、30℃;温度30℃,初始pH为2.3时,煤样Ι、Π的脱硫效果最好,分别为54%、67%;温度和pH的变化对煤样Ш的影响不大。30℃,初始pH为2.3时煤样Ι、Π、Ш的黄铁矿硫去除率分别为77%、83%、67%。更多还原

【Abstract】 Desulphurization of three types of coal from different regions and different mineral content were examined in this paper using thiobacillus ferrooxidans,including the influence of acidified and non-acidified pretreatment of coal,temperature and initial pH value. The results demonstrate the removal of total sulfur of non-pretreatment coal Ι,Π and Ш reached 29. 3%, 3. 9%,3. 5% separately,while the figure reached up to 39. 8%,40. 7%,4. 2% after acidification pretreatment. The optimum desulphurization temperature of coal Ι and Π were 35℃ and 30℃,respectively. The desulphurization efficiency reached 54% and 67% of coal Ι and coal Π respectively when the initial pH was 2. 3 at 30℃. The change of temperature and initial pH value had little impact on coal Ш. Depyritisation of coal Ι,Π and Ш reached 77%,83%,and 67% respectively when initial pH value was 2. 3 at 30℃.更多还原