| 摘要 |
A desulfurization process method and a system thereof using a decompression evaporation process are provided to prevent environmental contamination, and to minimize generation of wastewater. A desulfurization process system(1) includes a desulfurization washing tower(20), a NaOH reservoir(10), a micro filter(30), a NaOH wastewater reservoir(40), a heat exchanger(60), a decompression tank(50) and a boiler(80). The desulfurization washing tower includes a gas inflow pipe(2), a gas collecting pipe(3), and a spraying nozzle pipe(22). The desulfurization washing tower further includes a NaOH supply pump. The desulfurization process system further includes a NaOH transfer pipe(71), a waste liquid transfer pump, a waste liquid transfer pipe(73) having the micro filter, a waste liquid supply pump, a waste liquid supply pipe, a steam transfer pipe(75), a discharge pipe(77), a concentration transfer pipe(76), a waste liquid circulating pipe(76a), a first and second three-way switch valves.
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