بررسی و مقایسه آزمایشگاهی اثر نانو ذرات Fe3O4 و کربن فعال در فرآیند ارتقا نفت سنگین توسط گرمایش الکترومغناطیس

نوع مقاله : پژوهشی اصیل

نویسندگان

1 دانشجو - دانشگاه تربیت مدرس

2 عضو هیات علمی

چکیده
موضوع تحقیق: روش گرمایش الکترومغناطیس یکی از روش‌های نوین ارتقا و ازدیاد برداشت نفت سنگین است. در این روش انرژی امواج الکترومغناطیس صرف افزایش دما، شکست ترکیبات سنگین، کاهش گرانروی، ارتقا و ازدیاد برداشت نفت خواهد شد.

روش تحقیق: در این پژوهش نانو ذرات اکسید آهن مغناطیسی (Fe3O4) به روش هم‌رسوبی سنتزشده و کارایی این نانو ذرات در فرآیند گرمایش الکترومغناطیس و ارتقا موردبررسی قرار گرفت. همچنین مقایسه‌ای بین اثر این نانو ذرات در فرآیند گرمایش الکترومغناطیس و کربن فعال صورت گرفت. در این فرآیند نمونه‌های نفت خام حاوی 1/0 درصد نانو ذرات Fe3O4 و یا کربن فعال، در بازه زمانی صفر تا 8 دقیقه تحت تابش امواج ماکروویو (فرکانس 54/2 گیگاهرتز و توان 400 وات) قرارگرفته و تغییرات دما و گرانروی نمونه‌ها موردبررسی قرار گرفت.

نتایج تحقیق: نتایج نشان داد تابش امواج الکترومغناطیس (ماکروویو) سبب افزایش دمای نمونه‌ها خواهد شد. دمای نمونه نفت خام، نفت خام به همراه 0.1 درصد کربن فعال، نفت خام به همراه 0.1 درصد نانو ذرات Fe3O4 تحت تابش امواج به مدت 8 دقیقه به ترتیب از دمای محیط تا 70، 82 و C°90 افزایش یافت. همچنین در شرایطی که نمونه‌ها به مدت 4 دقیقه تحت تابش امواج بودند، بیشترین کاهش گرانروی گزارش شد. گرانروی نمونه نفت خام (قبل از فرآیند)، نفت خام به همراه کربن فعال و نفت خام به همراه نانو ذرات Fe3O4 تحت تابش امواج به مدت 4 دقیقه به ترتیب از mP.a 295 تا 261، 254 و mP.a 223 کاهش یافت. به عبارتی گرانروی نمونه‌ها تحت تابش امواج به مدت ۴ دقیقه برای نمونه نفت خام، نفت خام به همراه کربن فعال، نفت خام به همراه نانو ذرات Fe3O4 به ترتیب 5/11، 9/13و 4/24 درصد کاهش داشته و نانو ذرات Fe3O4 بیشترین کارایی را در افزایش دما و کاهش گرانروی داشتند.

کلیدواژه‌ها

موضوعات


عنوان مقاله English

Experimental investigation of Fe3O4 and Activated Carbon effect on the and heavy oil upgrading process by Electromagnetic heating

نویسندگان English

Parya Torkaman 1
ramin Karimzadeh 2
Arezou Jafari 2
1 Student
2 TArbiat Modares University, Faculty member
چکیده English

Research subject: Electromagnetic heating is one of the new methods of upgrading and increasing heavy oil extraction. In this method, electromagnetic waves will increase temperature, break heavy compounds, reduce viscosity, and improve and increase oil recovery.

Research approach: In this research, magnetic iron oxide nanoparticles (Fe3O4) were synthesized by the co-precipitation method, and the efficiency of these nanoparticles in the process of electromagnetic heating and heavy oil upgrading was investigated. Also, a comparison was made between the effect of these nanoparticles in the process of electromagnetic heating and activated carbon. In this process, oil samples containing 0.1% of Fe3O4 nanoparticles or activated carbon were irradiated with microwave (frequency 2.54 GHz and power 400 W) for 0 to 8 minutes, and the temperature and viscosity variation were investigated.

Main results: The results showed that microwave radiation increased the temperature of the samples. The temperature of the sample of crude oil, crude oil with activated carbon, and crude oil with Fe3O4 nanoparticles increased from ambient temperature to 70, 82, and 90°C, respectively, under wave radiation for 8 minutes. Also, the most significant decrease in viscosity was reported in 4 minutes: the viscosity of crude oil sample, crude oil with activated carbon, and crude oil with Fe3O4 nanoparticles under wave irradiation for 4 minutes decreased 295 mP.a to 261, 254, and 223 mP.a, respectively. In other words, the viscosity of the samples under wave irradiation for 4 minutes for crude oil, crude oil with activated carbon, and crude oil with Fe3O4 nanoparticles decreased by 11.5, 13.9 and 24.4%, respectively.

کلیدواژه‌ها English

Fe3O4 Nanoparticles
Activated carbon
electromagnetic waves
Synthesis
Viscosity
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