合成了一系列含有亚砜基团的亚砜类化合物(甲基苯基亚砜、2-氯乙基苯基亚砜、乙烯基苯基亚砜),并对合成的亚砜类化合物进行脱硫性能测定,筛选出脱硫性能好的2-氯乙基苯基亚砜。系统考察了温度与SO_2分压对2-氯乙基苯基亚砜脱硫性能的影响,并对其循环使用性能进行了测定。结果表明:在20℃时1 mol 2-氯乙基苯基亚砜可吸收SO_2达2.33 mol以上,温度升高,2-氯乙基苯基亚砜的脱硫性能下降;随着SO_2分压的增大,2-氯乙基苯基亚砜吸收SO_2的量呈现增大的趋势。2-氯乙基苯基亚砜具有良好的脱硫及再生性能,循环使用5次以上其脱硫能力不变。亚砜类化合物对SO_2的吸收为物理吸收。 A series of sulfoxide compounds (methyl phenyl sulfoxide, 2-chloroethyl phenyl sulfoxide, vinyl phenyl sulfoxide) containing sulfoxide groups were synthesized and the sulfoxides synthesized were desulfurized Performance measurement, screening out good desulfurization performance of 2-chloroethyl phenyl sulfoxide. The influence of temperature and partial pressure of SO_2 on the desulfurization performance of 2-chloroethylphenyl sulfone was systematically investigated, and its cycling performance was also measured. The results showed that the desulfurization performance of 2-chloroethyl phenyl sulfoxide decreased with the increase of temperature when the concentration of 1 mol 2-chloroethyl phenyl sulfoxide reached 2.33 mol at 20 ℃. With the partial pressure of SO 2 The amount of SO 2 absorbed by 2-chloroethylphenyl sulfoxide showed an increasing trend. 2-Chloroethyl phenyl sulfoxide has good desulfurization and regeneration performance, its use of more than 5 times the desulfurization capacity unchanged. Sulfoxides absorb SO 2 physically.