Coordination issues between sulfur recovery and flue gas desulfurization
Thread Content
In new coal-to-methanol projects, sulfur recovery and flue gas desulfurization are generally required. However, no matter which sulfur recovery technology is used, tail gas emissions cannot meet the standards every day. Can the sulfur recovered tail gas be directed to the boiler flue gas desulfurization inlet for further recovery, or all the tail gas can be fed into the flue gas desulfurization device when the sulfur recovery is stopped? But the question is which technology to choose for flue gas desulfurization, and whether all the flue gas must be incinerated before entering the flue gas desulfurization device. In addition, whether to add fans, professional and technical experts would like to share their opinions.
It is feasible to pass the sulfur recovery tail gas to the boiler flue gas for desulfurization. This is what our factory does. Our factory uses ammonia water to desulfurize to generate ammonium sulfate.
The sulfur recovery tail gas of my unit entered the flue gas desulfurization device behind the boiler, causing the original desulfurization device to be unable to operate. The original device used ammonia water desulfurization to produce sulfate anhydride. After the gas entered, it no longer crystallized and was forced to shut down.