What are the evaluation principles for desulfurization processes?

The evaluation criteria for desulfurization processes are as follows: 1. Desulfurization efficiency – the SO2 emission concentration and volume must comply with **and local environmental regulations; furthermore, the process should have the capability to improve its desulfurization efficiency further through minor technical upgrades in order to meet increasingly stringent environmental requirements in the future； 2. The utilization rate of the absorbent directly reflects the extent to which the desulfurization process makes use of it; under the same desulfurization efficiency, the amount of absorbent (in chemical equivalents) required by different desulfurization processes varies significantly ； 3. The desulfurization process is suitable for the specified coal types and can accommodate possible variations in the sulfur content of coal within a certain range ； 4. Mature technology, reliable operation, and reasonable cost ； 5. The desulfurization unit is reasonably arranged, occupying less space ； 6. Lower consumption of absorbents, water, and energy, as well as lower operating and maintenance costs ； 7. The absorbent has a reliable source and is of high quality at low cost ； 8. The construction cost of the desulfurization project should be as low as possible, and the construction period should be short ； 9. Desulfurization by-products and desulfurization wastewater can be utilized or disposed of properly ； 10. Minimize the impact on the main equipment of the power plant, such as boilers, fans, ESPs, etc ； 11. Suitable for existing space conditions, site conditions, and other relevant limitations.