Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil

被引:6
|
作者
Shakir, Firdews [1 ]
Hussein, Hussein Q. [1 ]
Abdulwahhab, Zeinab T. [2 ]
机构
[1] Univ Baghdad, Coll Engn, Chem Engn Dept, Baghdad, Iraq
[2] Minist Oil, Petr Res & Dev Ctr, Baghdad, Iraq
关键词
Asphaltene; Deasphalted Oil; Heavy Crude; Solvent Deasphalting; and Nanosilica; ASPHALTENE ADSORPTION;
D O I
10.21123/bsj.2022.6895
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this study, the upgrading of Iraqi heavy crude oil was achieved utilizing the solvent deasphalting approach (SDA) and enhanced solvent deasphalting (e-SDA) by adding Nanosilica (NS). The NS was synthesized from local sand. The XRD result, referred to as the amorphous phase, has a wide peak at 2 Theta= (22 - 23o) The inclusion of hydrogen-bonded silanol groups (Si-O-H) and siloxane groups (Si-O-Si) in the FTIR spectra. The SDA process was handled using n-pentane solvent at various solvent to oil ratios (SOR) (4-16/1ml/g), room and reflux temperature, and 0.5 h mixing time. In the e-SDA process, various fractions of the NS (1-7 wt.%) have been utilized with 61 nm particle size and 560.86 m2/g surface area in the presence of 12 ml/g SOR with 0.5 hr. mixing time at room and reflux temperature. The results showed that heavy crude was upgraded maximally using 7 wt.% of NS. The API increased to 35.9, while the asphaltene reduction increased to 87.22%. The removal of sulfur, vanadium, and nickel increased to 51.17%, 55.07%, and 69.87%, respectively.
引用
收藏
页码:144 / 156
页数:13
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