Lubricating greases based on pentaerythritol and trimethylolpropane esters and dioctyl sebacate have been synthesized using diureas as a thickener prepared by reactions of toluene diisocyanate, aniline, and primary aliphatic amines of various structures. The physicochemical properties of the greases, such as ultimate strength, yield stress, modulus of elasticity, dropping point, and colloid stability, have been characterized, and data on their antiwear activity have been obtained. The relationship between the structure of grease components, its rheology, and antiwear properties has been revealed.

On the basis of published reference data on crude oils recovered from more than 300 Russian oilfields, the effect of the concentrations of paraffin waxes, resins, and asphaltenes on oil properties has been analyzed. There are correlations between the oil density, viscosity and the resin content, whereas the amount of asphaltenes (along with resins) has a greater effect on the oil quality characteristics, such as sulfur content, coke and petroleum diesel yields. Crystallizable paraffins do not have a significant effect on the properties of the oils, the pour point of which does not depend explicitly on the composition.

The hydrogenation of petroleum resins (PRs) and the possibilities of using light hydrogenated PRs as components of hot-melt adhesives and pressure-sensitive adhesives have been surveyed. The theoretical aspects of hydrogenation of high molecular weight compounds and the influence of the main factors, such as average molecular mass, structure of hydrogenated moieties, catalyst support morphology, and solvent nature, on the extents of the hydrogenation and chain degradation reactions and their competition have been analyzed. Catalysts and processes for PR hydrogenation have been considered, and the appropriateness of using unsupported nanosized catalysts that mediate the process without diffusion limitations has been substantiated. The possibilities of using hydrogenated PRs in adhesive compositions with regard for compatibility with polymers and rheological and adhesion properties are described. Promising fields of research in hydrogenation of polymeric materials have been identified, including hydrogen-donor hydrogenation, in situ synthesis of sulfides in polymer solutions, particle size optimization of the active phase for hydrogenation of polymers with different average molecular masses, and highly selective hydrogenation of polymers.

Экспериментально изучено новое направление утилизации углеродсодержащих техногенных отходов путем их совместной переработки с нефтяными фракциями в процессе каталитического крекинга в моторные топлива и сырье для нефтехимии. Проведен на промышленном микросферическом катализаторе каталитический крекинг вакуумного дистиллята, содержащего растворенные полимеры. Определен качественный и количественный состав полимеров, растворенных в вакуумном дистилляте для конверсии в моторные топлива и ценное сырье для нефтехимии.

A recent trend in the utilization of carbon-containing technogenic wastes via joint processing with petroleum fractions by catalytic cracking into motor fuels and petrochemical feedstock has been studied experimentally. The catalytic cracking of a vacuum distillate with dissolved polymers has been performed on a commercial microspheric catalyst. The qualitative and quantitative compositions of the polymers dissolved in the vacuum distillate for the conversion into motor fuels and valuable petrochemical feedstock have been determined.

A trend in the development of catalytic cracking, one of the most important high-production-volume refinery processes, is integration into deep-conversion refinery complexes. We address studies on variation in the diesel/gasoline ratio and the processing of vacuum tower bottoms, renewable biomass, and polymer-containing wastes in complex facilities involving catalytic cracking and hydroconversion on nanosized heterogeneous catalysts.

Тенденция развития процесса каталитического крекинга – одного из наиболее важных и крупнотоннажных процессов нефтепереработки – интеграция в комплексы глубокой переработки нефти нефтеперерабатывающего завода. Представлены исследования по варьированию отношения дизельное топливо/автобензин, переработке гудрона, возобновляемой биомассы и полимерсодержащих отходов в комбинированных системах, включающих каталитический крекинг и гидроконверсию на наноразмерных гетерогенных катализаторах.