Bio-Based Lubricant Synthesis by Chemical Modification of Linoleic and Oleic Acid Mixture

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 243

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شناسه ملی سند علمی:

JR_JREE-9-4_009

تاریخ نمایه سازی: 8 دی 1401

چکیده مقاله:

The presence of increasing concerns and enforcement of growing regulations over environmental pollution are nowadays at play. The pollution arising from mineral oils is among the major concerns. With the gradual reducation of the world oil reserves, an increasing pressure comes into play for finding sustainable alternatives. Being appealing alternatives, vegetable oils consist of different fatty acids; however, they cannot be applied directly to internal combustion engines owing to their poor oxidation stability and high pour point value. Biolubricants are considered to be a new generation of lubricants, which are renewable and biodegradable and are produced from the chemical modification of vegetable oils. There are few studies investigating the feasibility of using the mixture of fatty acids as biolubricant feedstock. In this study, epoxidation, oxirane ring opening with palmitic acid and p-Toluenesulfonic acid, esterification reaction with octanol, and reaction of the remaining hydroxyl group with stearic acid were applied to modify the mixture of oleic and linoleic fatty acids and produce biolubricant. For this purpose, the IR spectrums of each epoxide, monoester, diester, and triester products were obtained and analyzed. At the end of the experiments, monoester, diester, and triester were obtained with ۹۴ % yield, with ۹۶ % yield, and with ۹۸ % yield, respectively. Eventually, the final product was found with physicochemical properties comparable with the physicochemical properties of the lubricant standard ISO VG۱۰.

نویسندگان

Sharareh Esmaeili

Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Tehran, Iran.

Kambiz Tahvildari

Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Tehran, Iran.

Barat Ghobadian

Department of Biosystems Engineering, School of Agriculture, University of Tarbiat Modares, P. O. Box: ۱۴۱۱۵-۱۱۱, Tehran, Tehran, Iran.

Masoud Dehghani-Soufi

School of Environment, College of Engineering, University of Tehran, P. O. Box: ۱۴۱۷۸۵۳۱۱۱, Tehran, Tehran, Iran.

Sanaz Mohammadzadeh Koumleh

Faculty of Chemistry, Shahroud University of Technology, P. O. Box: ۳۶۱۹۹۹۵۱۶۱, Shahroud, Semnan, Iran.

Tirth Panchal

C۱ Water Industries LLC, Dubai Industrial City, Dubai, United Arab Emirates.

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