高硫烟气脱硝保硫的资源化方法及应用
By spontaneously generating solid (NOx)a-(SOx)b-(H2O)c in high-sulfur flue gas, the problem of NOx removal in high-sulfur flue gas is solved, achieving efficient denitrification, sulfur preservation, and resource utilization, while avoiding equipment corrosion and secondary pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2026-04-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have difficulty selectively removing NOx from high-sulfur flue gas, leading to corrosion of the acid production system, decreased sulfuric acid purity, and difficulties in tail gas treatment, as well as secondary pollution problems.
In high-sulfur flue gas, under spontaneous reaction conditions, taking advantage of the fact that the SOx concentration is higher than NOx, NOx reacts with SOx and H2O to generate solid (NOx)a-(SOx)b-(H2O)c, thus achieving spontaneous denitrification and sulfur retention. The generated solids are then used for agricultural fertilizers and water purification.
It achieves efficient NOx removal, avoids equipment corrosion and sulfur resource loss, and the generated solids can be used as resources, solving the dual objectives of the acid production system and avoiding secondary pollution.
Smart Images
Figure CN122032289B_ABST