Raw coal desulfurization
Desulfurization technology of raw coal before combustion
1.Physical method: gravity coal preparation;
2.Chemical method: alkali desulfurization, gas desulfurization, pyrolysis and hydrogenation desulfurization, oxidation desulfurization.
Desulfurization technology of raw coal in combustion
Briquette sulfur fixation technology: through the processing of raw coal (briquette machine), add a certain binder and sulfur fixation agent mixture, after the briquette machine extrusion molding and drying, which can be obtained with a certain strength and shape of finished industrial sulfur fixation briquette.
Desulfurization technology of flue gas after combustion
1.Wet flue gas desulfurization technology: limestone-gypsum flue gas desulfurization technology; ammonia flue gas desulfurization technology;
2.Semi-dry flue gas desulfurization technology: rotary spray drying method.
- 1. Hydrogenation conversion desulfurization technology;
- 2. Biological desulfurization;
- 3. Ultrasonic technology;
- 4. Ionic liquid desulfurization technology.