非噻吩类硫化物吸附剂制备及烯烃对吸附效果影响  

PREPARATION OF NON-THIOPHENE SULFIDE ADSORBENT ANDINFLUENCE OF OLEFIN ON ADSORPTION EFFECT

作　　者：张国豪 李海争 赵亮[1] 高金森[1] 徐春明[1] Zhang Guohao;Li Haizheng;Zhao Liang;Gao Jinsen;Xu Chunming(State Key Laboratory of Heavy Oil Progressing,China University of Petroleum,Beijing 102249)

机构地区：[1]中国石油大学(北京)重质油全国重点实验室,北京102249

出　　处：《石油炼制与化工》2024年第1期145-151,共7页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金资助项目(22325808,22021004,U22B20140)。

摘　　要：为了开发非噻吩类硫化物高效吸附脱硫吸附剂,采用浸渍法分别制备了CuY,CrY,CoY,NiY吸附剂,并用相关表征技术考察了不同金属对吸附剂形貌和酸性质的影响,并与吸附剂吸附脱硫效果相关联。结果表明:负载金属Cu和Ni使得吸附剂Lewis酸性位明显增加,有利于形成硫与金属配位的S—M键,从而具有更优的吸附脱硫效果;但金属Ni易团聚堵塞吸附剂孔道,影响硫化物扩散,使得其吸附脱硫效果弱于CuY;当Cu的负载量(w)为10%时,Cu10 Y样品的穿透吸附硫容最大(14.24 mg g)。此外,还考察了烯烃对非噻吩类硫化物吸附脱除的影响,随着烯烃含量的增加,吸附剂的穿透吸附硫容呈下降趋势。由偶极矩和静电势计算可知,1-己烯和硫化物均可与金属形成配合物,从而产生竞争吸附,影响吸附脱硫效果。In order to develop high efficiency adsorbents for non-thiophene sulfides,CuY,CrY,CoY and NiY adsorbents were prepared by maceration method,and the effects of different metals on the morphology and acidity of adsorbents were investigated by using relative characterization techniques.The results showed that Cu and Ni could increase the acidity of Lewis and form the S—M bond,so the adsorbent had better adsorption desulfurization effect.However,the metal Ni tended to agglomerate and block the pore of adsorbent,which affected the sulfide diffusion and made the adsorption desulfurization effect weaker than that of CuY.When the mass fraction of Cu was 10%,the sulfur capacity of Cu10 Y was highest(14.24 mg g).In addition,the effect of olefin on the adsorption and removal of non-thiophene sulfides was also investigated.With the increase of olefin content,the adsorption capacity of the adsorbent decreased.According to the calculation of dipole moment and electrostatic potential,1-hexene and sulfide could form complexes with metal,which could lead to competitive adsorption and affect the adsorption desulfurization effect.

关 键 词：非噻吩类硫化物 吸附脱硫 金属改性 烯烃 竞争吸附 

分 类 号：TE624.5[石油与天然气工程—油气加工工程] TQ424[化学工程]