
A by-product of desulfurization using the ammonia method is ammonium sulfate fertilizer; from 1 ton of ammonia you can get 4 tons of by-product ammonium sulfate, and its profitability depends on the prices of ammonium sulfate and ammonia.
Description of technology
A by-product of desulfurization using the ammonia method is ammonium sulfate fertilizer; from 1 ton of ammonia you can get 4 tons of by-product ammonium sulfate, and its profitability depends on the prices of ammonium sulfate and ammonia.
Specifications
1、Mature and reliable technology
This technology is more adaptive, can support the desulfurization efficiency ranging from 30% to 110% of the production load over 98%, and is mature and reliable, regardless of the ash size in the flue gas to achieve stable operation.
2、Economic and social benefits are obvious
One ton of ammonia can release 2 tons of sulfur dioxide and produce 4 tons of ammonium sulfate, which in some cases offsets the cost of the desulfurant with a small surplus. If electricity prices are subsidized, profits can be achieved; If waste ammonia is available, it can be recycled and significant economic benefits achieved.
3、This technology does not involve the discharge of waste from wastewater and does not require a water treatment or solid waste disposal plant.
Applications
This technology can be used for all types of flue gases, such as: flue gases of non-ferrous metallurgy (flue gases of ring concentration, exhaust gases of sulfuric acid); Boiler smoke; Klaus emissions; Catalytic flue gas regeneration.
Technological process
Technological solution I: proposal for crystallization by evaporation of residual heat of flue gases in the column (at low ash content)
Technological solution II: crystallization by evaporation outside the column (with a high ash content in the flue gas)
Typical Results
| manufacturer | scale | Notes |
| Guangxi Fertilizer Plant | 160,000 Nm3/h | sulfuric tail gas |
| Shandong Thermal Power Plant | Boiler 240th3 | boiler smoke |
| Chemical plant in Shaanxi | Boiler 220th3 | boiler smoke |
| Sichuan plant | Boiler 130 tx2 | boiler smoke |