JET’s Integrated ammonia-based DeSOx & DeCO2 technology uses ammonia as absorbent simultaneously remove SO2 and CO2 in the flue gas:
- SO2 in the flue gas is converted to ammonium sulfate in EADS unit, and then sent to ammonia-based decarbonization unit to produce ammonium bicarbonate, which can be further treatment to produce high purity CO2.
- Ammonia contained in the tail gas after decarbonization is scrubbed with the desulfurization solution and recycled for desulfurization based on JET’s patented ammonia slip control technology. This process resolves the ammonia slip problem and greatly reduces the overall CAPEX and OPEX.
- The by-products are ammonium sulfate and ammonium bicarbonate fertilizer, which realizes the utilization of both sulfur and carbon, and CO2 byproduct can also be used for other purposes.
Advantages
- Patents have been applied for integrated ammonia-based desulfurization and decarbonization technology
- With JET’s patented ammonia slip control technology, the ammonia in the tail gas after decarbonization is scrubbed using the desulfurization solution and recycled for desulfurization, which resolves the ammonia slip issue and reduces the overall cost.
- Cost of the absorbent (ammonia) is about 1/4 of that of amine.
- By products (ammonium bicarbonate and ammonium sulfate) are commercial-grade fertilizers.
- Ammonium bicarbonate and ammonium sulfate are both compound fertilizers containing two nutrient elements, which can also be used in future agriculture (e.g., soilless cultivation and industrial production).
