络合吸附剂脱除FCC汽油中硫化物的研究  

Sulfur compound removal from FCC gasoline with complexation adsorbents

作　　者：王云芳[1] 尹风利[2] 张涛[1] 张坤[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,山东东营257061 [2]中国石化集团胜利油田有限公司胜利采油厂工艺研究所,山东东营257000

出　　处：《中国石油大学学报（自然科学版）》2006年第6期125-127,136,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：中国石油天然气集团公司石油科技中青年创新基金项目(03E7025)

摘　　要：制备了过渡金属离子Ag+,Cu+,Co+,Ni+的络合吸附剂Ag-SiO2,Ag-Al2O3,Ag-Y,Cu(Ⅰ)-Y,Co-Y,Ni-Y,分别在氮气和氦气环境中、450℃条件下,对Cu(Ⅱ)-Y进行了自动还原处理,制备了Cu(Ⅰ)-Y和Cu(Ⅰ)-Y(N2)吸附剂。在固定床吸附器上,常温、常压下考察了吸附剂对汽油模型化合物MLO-1(正庚烷中含噻吩硫2 000μg/g)的脱硫效果和模型化合物中芳烃(甲苯)对Cu(Ⅰ)-Y吸附脱硫效果的影响。结果显示,Cu(Ⅰ)-Y对硫的破点吸附量比Cu(Ⅰ)-Y(N2)高出近1.5倍;吸附剂对硫的破点吸附量由小到大的顺序为:Na-Y,Ni-Y,Co-Y,Ag-Y,Cu(Ⅰ)-Y;Cu(Ⅰ)-Y处理不含芳烃模型化合物MLO-1时,每100 g吸附剂硫的破点吸附量为4.6 g,处理含芳烃模型化合物MLO-2(正庚烷中含噻吩硫2 000μg/g、含苯1%)时,每100 g吸附剂中硫的破点吸附量为1.8 g。Complexation adsorbents including Ag-SiO2, Ag-Al2O3, Ag- Y, Cu （Ⅰ） ：Y, Co- Y and Ni-Y were synthesized based on transition ion： Ag^＋ , Cu^＋ , Co^＋ and Ni^＋ . Cu（Ⅰ）-Y and Cu（Ⅰ）-Y（N2） were prepared separately by Cu（ Ⅱ ）-Y reduction in pure helium and nitrogen at 450 ℃. The adsorptive desulfurization effects of adsorbents on a model gasoline MLO-1 having normal heptane with about 2000μg/g thiophene sulfur, aromatic hydrocarbon on Cu（Ⅰ）-Y were studied in a fixed-bed adsorber at ambient temperature and pressure. The results show that the breakthrough adsorption capacity for sulfur of Cu（Ⅰ）-Y is approximately 2.5 times more than that of Cu（Ⅰ）-Y（N2）. The adsorbents in order of increasing adsorption capacity for sulfur are Na-Y, Ni-Y, Co-Y, Ag-Y and Cu（Ⅰ）-Y. Cu（Ⅰ）-Y shows a breakthrough capacity of 4. 6 g of 100 g adsorbent for removing sulfur in MLO-1 and 1.8 g of 100 g adsorbent in MLO-2 having normal heptane with 1% toluene and about 2 000μg/g thiophene sulfur.

关 键 词：吸附脱硫 络合吸附剂 汽油脱硫 噻吩 

分 类 号：TE624.55[石油与天然气工程—油气加工工程]