The Processing of Industrial Oils for Alternative Bioproducts Lubricants : Methods and Their Effectiveness

Abstract

The innovative way of increasing the efficiency of traditional methods for processing the optimized compositions of rape or soy-gm oils with the addition of ratsin oil (the so-called compols ) by the methods of glycolysis and esterolysis is considered. These compositions are processed into alternative biocomponents of the branch of lubricating materials, in particular into biooils. It has been shown that the earlier developed methods of glycolysis — esterolysis of compols is characterized by low indicators, in particular selectiveness in relation to biooils, their output and quality. It is suggested to realize these methods as consisting of two stages with their first common stage — alcoholysis of compols by glycerine (glycerolysis-2) and the following stage which involves glycolysis or esterolysis of the intermediate product of glycerolysis. Due to the application of such technique, a drastic increase of selectiveness methods is achieved. It is demonstrated that in their functional properties and tribological characteristics new biooils are on a par with the best traditional base oils, in particular such very expensive and ecologically dangerous ester-type synthetic oils. Ref. 15, Tab. 3.

Monitoring of friction node surfaces in the context of their physico-chemical interactions with lubricating media of different surface activity

“…Нездоровін 1 , М.Б. Складанюк 3 Контроль стану поверхонь вузлів тертя у контексті фізикохімічних взаємодій їх із змащувальними середовищами різної поверхневої активності 1 Хмельницький національний університет, Хмельницький, Україна, vikirich@ukr.net 2 Хіміко-аналітична лабораторія ПАТ «Укрнафта», Київ, Україна, ribun.vika@gmail.com 3 Прикарпатський національний університет імені Василя Стефаника, Івано-Франківськ, Україна, skladanyuk16@gmail.com…”

“…Studying the processes and phenomena that occur in lubricated with oils (lubricants in general) friction joints, the main attention was paid to the critical mode of their operation, taking into account its functional characteristics, namely: a) high energy intensity of the surface layers of friction bodies in their contact area; b) the graphical dependence of the friction coefficient (f) and the thickness of the superficial oil film (h) on the complex parameter "η•υ• 1 − N F " (where ηviscosity, υspeed, FN -normal load), known as " Stribeck curve "; c) conditional parameter "λ" according to the formula λ = h/ R (where R is the root mean square value of surface roughness), and under critical friction λ ≤ 0.4 [3,4,5]. Chemical processing of technical oils has been proposed to create alternative base oils with high SA that would meet the optimal requirements of "price -high quality -environmental safety".…”

“…Chemical processing of technical oils has been proposed to create alternative base oils with high SA that would meet the optimal requirements of "price -high quality -environmental safety". Taking into account these requirements, methods and technologies for obtaining a new type of biosynthetic oils, in particular bio-oils, bio-additives, technical bioliquids, biocomponents of plastic oils using oils of industry basic products [2,3]. The specific chemical structure of molecules of such biosynthetic products (primarily basic biooils), high content in their structure of unsaturated chemical bonds and highly polar functional groups cause high levels of SA and favorable physicochemical activity in tribochemical processes of their lubricated friction nodes.…”

“…Investigation of the surfaces of Steel 45 both in the initial state and after testing on a tribometer in order to estimate the effect of each lubricating composition (1, 2, 3) (Tab. 5) on the structure and properties of steel thin surface layers was carried basing on the modern method of X-ray structural analysis, namely the method of a sliding beam of X-rays (X-) [3,4]. The thickness of the studied steel layers is determined by the inclination angle of the X-rays to the sample surface.…”

“…In the context of development of theoretical and applied aspects of tribochemistry of lubricants, it is important to investigate the influence of structure and properties of new biosynthetic materials obtained from technical oils on tribotechnical quality of nanofilms formed between lubricated metal surfaces of friction nodes [1][2][3][4].…”