Flue gas coming from coal or oil burning combustors and heaters in petrochemical plant contains 100~3000ppm SO2 and NOx. Through cooperation with domestic universities, overseas engineering companies and catalyst producers, Keyon Process provides clients with highly efficient and reliable desulfurization and denitration solutions.We adopt a unique solvent that has highly selective strong adsorption ability to SO2. The solvent can deeply remove SO2 in flue gas to make tail gas meet ultra-low SO2 emission requirement by the government ( SO2≤35mg/Nm3). SO2 in the solvent can be desorbed for the solvent to be regenerated for cyclic usage, in the meantime released SO2 can be used to produce sulfur or sulfuric acid.
The core of DSR process is DSR solvent that is highly selective to adsorbing SO2, with minimum adsorption to CO2, H2O and N2 etc.. Hence, the solvent has superb desulfurization ability in treating SO2 contiaining flue gas or tail gas.
SO2 enriched DSR solvent can be regenerated by heating and releasing of SO2. Based on reasonable chemical composition, the DSR solvent has stable adsoption and strong desorption ability that ensures the release of SO2 is easily achieved by heating, and leads to low energy consumption.