The addition of NaOH greatly enhanced the sorbent reactivities toward SO2 because NaOH is deliquescent and its presence increased the amount of water collected by the sorbent.

• 由于氢氧化钠的潮解性质，使较多的水分能吸附在吸收剂表面，提高了吸收剂与二氧化硫的反应性。