【作者】 布劳里；

【导师】 杨敬一；

【作者基本信息】 华东理工大学 ， 油气储运工程， 2010， 硕士

【摘要】 硫醇和噻吩是原油中的主要含硫化合物,它们引起严重的环境污染和加工困难,因此从油品中脱除硫醇和噻吩一直是一个令人感兴趣的问题。本文主要开展萃取法和吸附法脱除硫醇和噻吩的研究。实验结果表明采用β-环糊精(p-CD)作为萃取剂,在30℃、萃取时间25分钟、β-环糊精浓度0.01mol/L、β-环糊精和模型油为1：1的条件下,对硫醇和噻吩的脱除率分别达到25.0%和72.9%。随着萃取时间的增加,硫醇和噻吩的脱除率增加。甲苯的存在对噻吩的脱除有不利影响。合成了一系列Zn2+,Cu2+,Fe3+,La3+,Ni2+离子掺杂的Mg/Al水滑石(HTC)和复合氧化物(CMO)作为吸附剂用于脱除模型油中的硫醇和噻吩。实验结果表明,在30℃、10分钟和剂油比为1：100的条件下,MgAlLa(3:0.6:0.4) HTC和CMO, MgAlCu HTC具有较好的脱除效果。采用SEM, FT-IR, XRD, TG/DTA,碱性和水溶性碱检测法对MgAlLa(3:0.6:0.4) HTC和CMO的结构进行了表征。MgAlLa(3:0.6:0.4) HTC和CMO在30℃、10分钟和剂油比为1：25的条件下,对噻吩的脱除率达到28.5%和29.8%。随着剂油比增加,噻吩脱除率增加。甲苯的存在对噻吩的脱除有不利影响。MgAlLa(3:0.6:0.4) HTC和CMO在30℃、10分钟和剂油比为1：25的条件下,对硫醇的脱除率达到56.1%和62.7%。随着吸附温度、时间和剂油比增加,硫醇脱除率增加。更多还原

【Abstract】 Mercaptan and thiophene are the main sulphur compound in the crude oil, which lead to severe environmental problems and refine difficulty. Removal of mercaptan and thiophene from oil is an interesting research subject. This paper main focus in two aspects:thiophene and mercaptan removal by extraction and adsorption method. The experiment results showed that thiophene and propylmercaptan removal efficiency for model oil reached 25.0% and 72.9% by the extraction solventβ-cyclodextrin (β-CD) at 30℃, extraction time 25 min, O.Olmol/Lβ-cyclodextrin and the ratio ofβ-cyclodextrin and model oil 1:1. With the increasing of extraction time, the mercaptan and thiophene removal efficiency is increasing. Toluene has unfavourable influence for the thiophene removal of efficiency. Zn2+, Cu2+, Fe3+, La3+, Ni2+ cation incorporated Mg/Al hydrotalcites (HTC) and composite metal oxide (CMO) had been synthesized as adsorbent for removal of thiophene and propylmercaptan. The results showed that MgAlLa(3:0.6:0.4) HTC and CMO, MgAlCu HTC have preferred thiophene and propylmercaptan removal efficiency for model oil at 30℃temperature,10 min and 1:100 adsorbent-oil ratio. The structure and composition of MgAlLa (3:0.6:0.4) HTC and CMO have been characterized by SEM, FT-IR, XRD, TG/DTA, basicity and soluble basicity, BET. The thiophene removal efficiency for model oil reached 28.5% and 29.8% by the MgAlLa HTC and CMO Adsorption at the 30℃,10 min and adsorbent-oil ratio 1:25. With the increasing of adsorbent-oil ratio, the thiophene removal efficiency is also increased. Toluene has unfavourable influence for the thiophene removal of efficiency. The propylmercaptanrange removal efficiency for model oil reached by the MgAlLa MgAlLa HTC and CMO Adsorption at the temperature 30℃, the adsorption time 10 min and adsorbent-oil ratio 1:25. With the increasing of adsorption temperature, adsorption time and adsorbent-oil ratio, the propylmercaptanrange removal efficiency is also increased.更多还原