A novel approach in developing environment-friendly bio-lubricant from coconut oil, mustard oil and its methyl esters

Author(s):  
Akshai B ◽  
Visakh R ◽  
Krishnanand J Kamath ◽  
Mohammed R Riyas ◽  
ML Joy

The environmental issues caused by synthetic lubricant oils necessitate the need for an environment-friendly lubricant. In this study, a novel approach is proposed for developing an environment-friendly bio-lubricant by blending mustard oil, coconut oil and its methyl esters. Properties of the bio-lubricant are studied and compared with commercial ISO VG 32 oil. The best among various blends prepared are selected based on a decision matrix. The results revealed that this method helps in pour point depression and also in achieving excellent oxidative stability as compared to the base vegetable oil. The newly formulated oil has a pour point lower than that of commercial oil and is found to be highly biodegradable. The anti-wear characteristics of the oil are improved using boric acid, and the viscosity of the oil is improved using ethyl vinyl acetate for meeting the industrial standards. The newly formulated oil complies with industrial standards and can be used as biodegradable lubricant oil.

2000 ◽  
Vol 28 (6) ◽  
pp. 979-981 ◽  
Author(s):  
R. D. Abigor ◽  
P. O. Uadia ◽  
T. A. Foglia ◽  
M. J. Haas ◽  
K. C. Jones ◽  
...  

Fatty acids esters were produced from two Nigerian lauric oils, palm kernel oil and coconut oil, by transesterification of the oils with different alcohols using PS30 lipase as a catalyst. In the conversion of palm kernel oil to alkyl esters (biodiesel), ethanol gave the highest conversion of 72%, t-butanol 62%, 1-butanol 42%, n-propanol 42% and iso-propanol 24%, while only 15% methyl ester was observed with methanol. With coconut oil, 1-butanol and iso-butanol achieved 40% conversion, 1-propanol 16% and ethanol 35%, while only traces of methyl esters were observed using methanol. Studies on some fuel properties of palm kernel oil and its biodiesel showed that palm kernel oil had a viscosity of 32.40 mm2/s, a cloud point of 28°C and a pour point of 22°C, while its biodiesel fuel had a viscosity of 9.33 mm2/s, a cloud point of 12°C and a pour point of 8°C. Coconut oil had a viscosity of 28.58 mm2/s, a cloud point of 27°C and a pour point of 20°C, while its biodiesel fuel had a viscosity of 7.34 mm2/s, a cloud point of 5°C and a pour point of - 8°C. Some of the fuel properties compared favourably with international biodiesel specifications.


2018 ◽  
Vol 427 ◽  
pp. 409-415 ◽  
Author(s):  
Zhenyu Zhang ◽  
Zhifeng Shi ◽  
Yuefeng Du ◽  
Zhijian Yu ◽  
Liangchao Guo ◽  
...  

2007 ◽  
Vol 109 (4) ◽  
pp. 440-444 ◽  
Author(s):  
Cheah Han Sern ◽  
Choo Yuen May ◽  
Zuriati Zakaria ◽  
Rusli Daik ◽  
Cheng Sit Foon
Keyword(s):  
Palm Oil ◽  

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Alexandra E. Quimby ◽  
Debora Hogan ◽  
Diana Khalil ◽  
Matthew Hearn ◽  
Colette Nault ◽  
...  

Background. Xerostomia is a common complication following radiation therapy for head and neck cancer (HNC), for which there is no single, universally accepted therapy. Coconut oil has been anecdotally suggested to provide relief for this complication. This study sought to examine the feasibility and effectiveness of coconut oil as a therapy for radiation-induced xerostomia. Methods. A feasibility study was performed among 30 patients with xerostomia subsequent to radiation for HNC. Coconut oil samples were provided along with a protocol for use over a 2-week period and the option to continue if they found it beneficial. Patients were also instructed to keep diaries to document their patterns of use. The Xerostomia-related Quality of Life Scale (XeQOLS) was administered at baseline and 3-month follow-up. Descriptive methods were used to summarize patterns of coconut oil use and paired t-tests were used to assess changes in XeQOLS scores over time. Results. The mean total duration of coconut oil use during the study period was 16 days (1–71). The average number of uses per day was 3 (1–5), with an average amount per use of 5 mL (1.2–8.5). Twelve patients (41.4%) continued coconut oil use beyond the advised period. There was no statistically significant difference in XeQOLS scores pre- and post-treatment. There were no adverse events during the study period. Conclusions. The use of coconut oil as a treatment strategy for xerostomia post-HNC radiation is feasible, inexpensive, and safe. This study demonstrates that there may be a group of HNC patients that benefit from its use.


2015 ◽  
Vol 642 ◽  
pp. 174-178 ◽  
Author(s):  
K.A.H. Al Mahmud ◽  
M.A. Kalam ◽  
H.H. Masjuki ◽  
H.M. Mobarak

Nowadays environmental awareness issue draws the attention of the scientists; lubricant industry also focuses on environment friendly lubricating oils. Therefore, vegetable oils draw the attention of scientists because of environmental friendly as well as good lubricating characteristics. However, good lubricating vegetable oils often shows inferior property because of low thermal stability, hence, to enhance the performance of vegetable oils self-lubricating diamond like carbon coating is considered, which helps in lowering the friction force which in turn lower friction induced heating, as a result stability of vegetable oils increases. In this current research, three vegetable based oils (sunflower, palm, coconut) are considered as lubricating oil. Tribological tests are conducted by ball on plate tribo-testing machine, tetrahedral type diamond like carbon coated plates and uncoated balls are used in the tribo-pair. Among the testing conditions sunflower oil shows good friction and wear characteristics and coconut oil shows inferior friction and wear characteristics.


2020 ◽  
Vol 109 ◽  
pp. 103066 ◽  
Author(s):  
Amit ◽  
Rahul Jamwal ◽  
Shivani Kumari ◽  
Amit S. Dhaulaniya ◽  
Biji Balan ◽  
...  

2012 ◽  
Vol 512-515 ◽  
pp. 506-509
Author(s):  
Quan Yi Wang ◽  
Yan Wang ◽  
Shun Yao ◽  
Hang Song

The chemical modified Idesia polycarpa Maxim. var. vestita Diels (IPMVVD) oil as a biodegradable lubricant was described in the paper. IPMVVD oil was modified by epoxidation and reaction of ring opening to resolve poor oxidative stability and low-temperature fluidity when vegetable oils as lubricants directly. The effects of the parameters in the process were studied, and then the product was evaluated. The results showed that the modified IPMVVD oil had higher viscosity index and superior oxidative stability comparing with unmodified oil; its mixtures with Dioctyl phthalate (DOP) offered a wide range of kinematic viscosities and lower pour point (-22°C), displayed preferable low temperature performance.


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