Catalytic cracking of acidified oil and modification of the pyrolytic oils from soap stock for the production of high-quality biofuel

Soap stocks are by-products during the refining process of vegetable oil, which are mainly feedstocks to produce acidified oil. In this work, an efficient process was developed to convert...

ANALYSIS OF SEPARATION OF OIL WASTE FROM SOAPSTOCK

Recycling of oil industry fatty factors of soap stock.

ANTI-CORROSION COATINGS FOR OIL PIPELINES

The anti-corrosion coatings obtained on the basis of local raw materials, in particular, cotton soap stock, mineral and vegetable fillers, were studied. The compositions were prepared by mixing in a laboratory multifunctional extruder. The adhesion of the obtained anticorrosion coating was investigated; it was found that the anticorrosive properties of the obtained composition increase with increasing concentrations of sevilen (up to 15%), plant filler (up to 30–35%), carbon black (up to 8–10%) and soapstock (up to 20%). The morphology of the obtained composite with the addition of fillers was investigated. After temperature modification, the structure of the initial composition undergoes changes, the diameter of the fibers of the vegetable filler decreases.

Research of tribotechnical characteristics of materials used in the development of compositions of lubricants for casting under pressure of aluminum alloys and polymeric products

The article describes the requirements for lubricants (release coatings) used in injection molding of aluminum alloys and polymeric materials. A methodology for conducting research to determine the tribotechnical characteristics of materials used in the development of the composition of a lubricant for injection molding aluminum alloys and polymer products, as well as the results of a study of tribotechnical characteristics (friction coefficient) are presented. It has been established that as materials used in the development of a multifunctional lubricant composition for casting aluminum alloys and polymer products, it is advisable to use a fraction of soap stock and fus after their preliminary sedimentation (at least 3 months). It is shown that the smallest value of the coefficient of friction at the time of indenter breaking on the surface of the steel disk was obtained using a fus. Moreover, the value of the coefficient of friction is 14–33% lower than the same indicator for other studied lubricants (petroleum jelly, PMS-100 and soap stock). It was found that in the mode of reciprocal movement of the indenter on the surface of the steel disk, the coefficient of friction when using a fus is 1,7–3,3 times lower than when using Vaseline, PMS-100 and soap stock as lubricant.

Potential Use of Lipid Waste Industrial Residues for Lipase, Phospholipase and Bio surfactant Production Using a Newly Isolated Bacillus Safensis Strain

The aim of this work was to produce lipases by a newly bacterial strain using as substrate, reach lipid waste by products from oil refining or commercially soap industry. For the fermentation tests, two substrates were investigated to produce lipases: soap stock (solid lipid waste from an oil refining industry) and glycerin (liquid lipid waste from soap industry). The higher level lipases production was obtained with the soap stock as the sole carbon source. Different parameters such as pH, temperature of the medium and incubation time were optimized. A correlation was also obtained between detected lipolytic activity and reduction of surface tension in the culture medium. The surface tension decreased from 50 to 25.7 mN/m indicating that biosurfactants were produced in the culture medium. As soap stock contains phospholipids molecules, this by product also enhances phospholipases production by the newly Bacillus safensis strain.

PROSPECÇÃO TECNOLÓGICA DE PATENTES SOBRE A OBTENÇÃO DE ÁCIDOS GRAXOS À PARTIR DA BORRA DE REFINO DO TRATAMENTO DE NEUTRALIZAÇÃO DE ÓLEOS BRUTOS (SOAP STOCK)

<p>Antes de ser comercializado, o óleo vegetal extraído deve passar por um pré-tratamento, sendo o soap stock o principal subproduto desse processo, cuja composição possui alto teor de ácidos graxos. O objetivo desta prospecção foi mapear as tecnologias utilizadas para a obtenção de ácidos graxos a partir do soap stock. A busca foi realizada através do ESPACENET, utilizando a associação das palavras soap stock* or soapstock* com três IPCs que se referem à obtenção de ácidos graxos: C11B13, C12P7/64 e C11C1. Os Estados Unidos é o país com maior número de patentes seguido da China. O processo de acidificação do soap stock envolve a adição de um ácido forte para transformar os sabões em ácido graxo podendo ser facilmente separados por decantação ou centrifugação, esse tem sido o método de separação mais utilizado pelos inventores. Existem poucas patentes acerca do tema, o que torna esta tecnologia promissora na perspectiva de desenvolvimento tecnológico.</p>