ABSTRACT
The 2× 300MW Thermal Power Co., a direct aircooling heating unit, has simultaneously constructed two flue gas desulfurization units, configuredwith one furnace and one tower. Flue gas desulfurization uses an ammonia method process, from the Jiangsu Province Chemical Industry Research Institute Co., Ltd. Design and Management. Unit #1 has been in intermittent operation since the end of 2010 but, after 168 trial runs over 153 days, the ammonia desulfurization device has not run properly. After frequent failures, desulfurization efficiency standards are unable to meet the environmental requirements and the unit cannot run continuously. At the same time, as the coal market supply is unreliable, the actual burning of coal conditions and design coal there is a certain bias.According to the actual operation of the power plant, desulfurization devices are currently operating. Considering the future uncertainty in the coal market, the existing two ammonia transformation desulfurization devices were converted to a limestone-gypsum wet flue gas desulfurization process.
