Operation of tail gas desulphurization plant in Jinlong Copper

2003 
The design and operation of the tail gas desulphurization system for a sulphuric acid plant based on copper off-gas are described. The installation of the system ensures the sulphur dioxide concentration of the tail gas less than 292 mg/m3, with a desulphurization efficiency of 98% by sodium process and 95% by calcium process, respectively. The pH value of the circulating soluton and pressure at the nozzles of scrubber are the key contributing factors to desulphurization efficiency.
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