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Information × Registration Number 0220U104859, 0119U101301 , R & D reports Title The development of new environmentally friendly synergistic compositions for inhibiting and corrosion protection of equipment of oil and energy industries popup.stage_title Head Zin Ivan M., Registration Date 28-12-2020 Organization Karpenko Physico-Mechanical Institute of NASU popup.description2  The object of the research is corrosion inhibitors based on biosurfactants, products of processing of vegetable raw materials, the by-product of vegetable fats processing and their synergistic compositions. The aim of the project is to develop new, effective, environmentally friendly and cost-effective corrosion inhibitors for steels and aluminum alloys in neutral and acidic environments, in particular on the basis of the by-product of biodiesel production for use in the oil and gas and energy industries. Research methods: potentiodynamic polarization, electrochemical impedance spectroscopy, gravimetric, scanning electron microscopy, X-ray microanalysis, gas chromatography, corrosion-fatigue tests. The high inhibiting properties of biosurfactants, products of vegetable raw materials processing, commercial reagents of natural origin, and synergistic compositions based on them are revealed in the work. In particular, it was found that technical glycerin in the concentration range of 1...2,5 g/dm3 satisfactorily protects aluminum alloy and carbon steels in neutral environments (degree of protection 79,5 and 58%, respectively), and its synergistic composition with thioureainhibits steel corrosion in 25...28% hydrochloric acid by 92 ... 95%. It is shown that the mechanism of inhibition of corrosion of carbon steels and aluminum alloy in neutral media by rhamnolipids, trehaloselipids, plant extracts, technical glycerin, and compositions based on them is adsorption with inhibition of both electrode reactions. Temporary technical requirements for the production of Eco-inhibitor based on technical glycerin have been developed, its experimental batch has been synthesized and testing in acid washing solutions for elimination of salt deposits has been carried out. Product Description popup.authors Danylyak Mariya-Olena M Zin' Ivan M. Korniy Serhiy A Kupovych Romana B Mahlatyuk Lyudmyla A Pokhmursʹkyy Vasylʹ I Rudkovsʹkyy Yevhen M Slobodyan Zvenomyra V Tymusʹ Mar"yana B Khlopyk Olʹha P Khudyk Petro M. popup.nrat_date 2020-12-28 Close