تولید بیودیزل از روغن آفتابگردان به کمک کاتالیست کلسیم اکساید حاصل از ضایعات پوست تخم‌مرغ: بررسی آماری

بیات, احمد; عبدالکریمی مه آبادی, میثم

doi:10.66224/jii.3.4.133

تولید بیودیزل از روغن آفتابگردان به کمک کاتالیست کلسیم اکساید حاصل از ضایعات پوست تخم‌مرغ: بررسی آماری

نوع مقاله : مقاله پژوهشی

نویسندگان

احمد بیات

میثم عبدالکریمی مه آبادی

گروه مهندسی شیمی، دانشگاه تفرش، تفرش، 79611-39518، ایران.

10.66224/jii.3.4.133

چکیده

کاتالیست اکسید کلسیم حاصل از ضایعات پوست تخم‌مرغ برای تولید بیودیزل از طریق ترنس استریفیکاسیون روغن آفتابگردان به کار گرفته شد. ضایعات پوست تخم‌مرغ در دمای ۹۰۰ درجه سانتیگراد به مدت ۴ ساعت در هوا کلسینه شد تا کربنات کلسیم موجود در پوست تخم‌مرغ به کاتالیست فعال اکسید کلسیم تبدیل گردد. به‌منظور شناسایی ترکیب کاتالیست CaO حاصل از ضایعات پوست تخم‌مرغ، از فلورسانس اشعه ایکس (XRF) استفاده شد. همچنین ترکیب اسیدهای چرب روغن آفتابگردان توسط کروماتوگرافی گازی (GC) تعیین گردید. از روش طراحی فاکتوریل آزمایش‌ها برای ارزیابی اثر پارامترهای مختلف (زمان واکنش، نسبت مولی متانول به روغن و مقدار کاتالیست) استفاده شد. کاربرد کاتالیست CaO حاصل از ضایعات پوست تخم‌مرغ برای تولید بیودیزل، بازدهی بالای 95 درصد وزنی را نشان داد. عملکرد کاتالیست در دمای 60 درجه سلسیوس و زمان واکنش 4 ساعت و نسبت مولی متانول با روغن 12 بود. تولید کاتالیست CaO صرفاً با کلسینه کردن ضایعات پوست تخم‌مرغ، فرصتی را فراهم می‌آورد تا از این ماده زائد به‌عنوان کاتالیستی مؤثر برای تولید بیودیزل از روغن آفتابگردان استفاده شود. بازده تولید بیودیزل پس از 5 بار بازیابی و استفاده مجدد بالای 75 درصد وزنی بود که نتایج امیدوارکننده‌ای برای کاربرد صنعتی این کاتالیست می‌باشد.

کلیدواژه‌ها

اکسید کلسیم

بیودیزل

ضایعات پوست تخم‌مرغ

روغن آفتابگردان

طرح فاکتوریل

عنوان مقاله English

Production of Biodiesel from Sunflower Oil Using Calcium Oxide Catalyst Derived from Eggshell Waste: A Statistical Study

نویسندگان English

Ahmad Bayat

Meisam Abdolkarimi Mahabadi

Department of Chemical Engineering, Tafresh University, Tafresh, 39518-79611, Iran.

چکیده English

Calcium oxide catalyst derived from eggshell waste was used for biodiesel production via transesterification of sunflower oil. The eggshell waste was calcined in air at 900 °C for 4 hours to convert the calcium carbonate present in the eggshells into active calcium oxide catalyst. To identify the composition of the CaO catalyst obtained from eggshell waste, X ray fluorescence (XRF) was used. The fatty acid composition of the sunflower oil was also determined by gas chromatography (GC). A factorial design of experiments was employed to evaluate the effect of various parameters (reaction time, methanol to oil molar ratio, and catalyst amount). The use of CaO catalyst derived from eggshell waste for biodiesel production gave a high yield of >95 wt.%. The catalyst performance was achieved at 60°C, with a reaction time of 4 hours and a methanol to oil molar ratio of 12. Producing CaO catalyst simply by calcining eggshell waste provides an opportunity to use this waste material as an effective catalyst for biodiesel production from sunflower oil. The biodiesel yield remained above 75 wt.% after five cycles of recovery and reuse, which are promising results for the industrial application of this catalyst.

کلیدواژه‌ها English

Calcium Oxide

Biodiesel

Waste Eggshell

Sunflower Oil

Factorial Design

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