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Lubricants
Special Issues
Lubricity in Fuel
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Lubricity in Fuel

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (30 July 2014) | Viewed by 9524

Special Issue Editor

Dr. Sevim Z. Erhan

E-Mail Website
Guest Editor
Eastern Regional Research Center-USDA/ARS, 600 East Mermaid Lane, Wyndmoor, PA 19038-8598, USA
Interests: vegetable oil-based and industrial products including printing inks; paints; coatings; lubricants; biodiesel; hydraulic oils; polymers and composites

Special Issue Information

Dear Colleagues,

The diesel fuel Portion of petroleum naturally contains sulfur compounds that provide good lubricity.  Requiring reduced levels of sulfur will therefore lower the lubricities of both No. 1 and No. 2 diesel fuels. A lack of lubricity in these fuels causes premature equipment failures. Consequently, EPA mandates that further lower sulfur requirements will exacerbate the fuels’ lubricity problems.

This Special Issue will focus on lubricity, lubricity enhancers (i.e., biodiesel), lubricity test methods (advantages/shortcomings), lubricity additives, and operational conditions and requirements.

Dr. Sevim Z. Erhan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fuel
  • biodiesel
  • lubricity
  • sulfur
  • diesel
  • additives

Published Papers (1 paper)

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Research

914 KiB  
Article
Modeling and Forecasting of Depletion of Additives in Car Engine Oils Using Attenuated Total Reflectance Fast Transform Infrared Spectroscopy
by Ronald Nguele, Hikmat Said Al-Salim and Khalid Mohammad
Lubricants 2014, 2(4), 206-222; https://doi.org/10.3390/lubricants2040206 - 26 Nov 2014
Cited by 8 | Viewed by 9156
Abstract
On average, additives make up to 7% of a typical lubricant base. Commonly, they are blended with lube oils to enhance specific features thereby improving their qualities. Ultimately, additives participate in the performance of car engine oils. Using an analytical tool, attenuated total [...] Read more.
On average, additives make up to 7% of a typical lubricant base. Commonly, they are blended with lube oils to enhance specific features thereby improving their qualities. Ultimately, additives participate in the performance of car engine oils. Using an analytical tool, attenuated total reflectance fast transform infrared spectroscopy, various grades of car engine oils, at different mileages, were analyzed. Sulfate oxidation and wear were found to trigger chemical processes which, in the long run, cause lubricant degradation while carbonyl oxidation was observed to occur only at a slow rate. Based upon data obtained from infrared spectra and using a curve fitting technique, mathematical equations predicting the theoretical rates of chemical change due to the aforementioned processes were examined. Additive depletions were found to obey exponential regression rather than polynomial. Moreover, breakpoint (breakpoint is used here to denote the initiation of deterioration of additives) and critical mileage (critical mileage defines the distance at which the lubricant is chemically unusable) of both samples were determined. Full article
(This article belongs to the Special Issue Lubricity in Fuel)
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