摘要
Desulfurization of gasoline distillation with adsorption was studied at ambient temperature and pressure by using CuNaY（NaY exchanged with copper nitrate aqueous solution） as the adsorbents.The gasoline distillation was composed of thiophene-cyclohexane solution（115.0 μg/mL） with or without toluene.For the solution without toluene,no detectable sulfur was found in the effluent when the effluent volume was less than 40 mL,while the addition of toluene resulted in an evident drop of the adsorption performance for（CuNaY.） FTIR spectra indicate that the conversion of Cu2+ to Cu+ took place during the pretreatment of（CuNaY） adsorbent,and the interaction mode between the adsorbed thiophene molecules and Cu+ is π complexation.This adsorption mode is easily affected by aromatic compounds,resulting in the significant decrease of adsorption capacity in model gasoline containing toluene on CuNaY.
Desulfurization of gasoline distillation with adsorption was studied at ambient temperature and pressure by using CuNaY（ NaY exchanged with copper nitrate aqueous solution） as the adsorbents. The gasoline distillation was composed of thiophene-cyclohexane solution（ 115.0μg/mL） with or without toluene. For the solution without toluene, no detectable sulfur was found in the effluent when the effluent volume was less than 40 mL, while the addition of toluene resulted in an evident drop of the adsorption performance for CuNaY. adsorption mode is easily affected by aromatic compounds, resulting in the significant decrease of adsorption capacity in model gasoline containing toluene on CuNaY.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第12期2351-2353,共3页
Chemical Journal of Chinese Universities
基金
国家"九七三"计划项目(批准号:G2000048003)资助
关键词
吸附
CuNaY分子筛
芳香化合物
噻吩
IR光谱
Adsorption
Copper-exchanged Y zeolite
Aromatic compound
Thiophene
IR spectroscopy
