2. The sulfur content of long-flame coal is 0.6%.
3. The sulfur content of gas coal is 0.8%.
4. The sulfur content of gas-fertilizer coal is: 1.9%?
5. The sulfur content of fat coal is 0.9%.
6. The sulfur content of coking coal is 65438 0.3%.
7. The sulfur content of lean coal is 0.4%.
8. The sulfur content of lean coal is: 1.2%.
9. Sulfur content of lean coal: 0.4%
10, and the sulfur content of anthracite is 0.9%?
Extended data
Factors affecting the determination of sulfur content in coal;
1, electrolyte replacement
Electrolyte should not be placed for too long, and should be replaced in time to ensure the accuracy of the determination results.
2. Collect waste samples before determination.
Before the experiment, 2-3 samples of high sulfur waste should be determined to restore the balance between electrolyte and the whole system. If the interval of coal sample determination is long, waste samples should be burned before coal sample determination, otherwise the determination result will be low.
3, the air tightness of the gas path
Poor air tightness will lead to low determination results of sulfur. In addition, the gas flow rate should be controlled at around1000 ml/L. Too large or too small will affect the determination results.
Step 4 clean the electrolytic cell
The pollution of the electrodes in the electrolytic cell or the non-parallel electrode sheets will also affect the determination results. Scrubbing with alcohol in time to ensure that the electrode plates are parallel.
5, check the purification device
The purification system needs a purification pipeline with a drying base to purify and dry the air, otherwise the gas generated by the combustion of coal samples will be adsorbed in the pipeline before entering the electrolytic cell, resulting in a low determination result.
Baidu encyclopedia-coal