POROUS CATALYTIC-ACTIVE CERAMIC MEMBRANES FOR HYDROCARBON DEHYDROGENATION

Propylene and butadiene considered as the most popular raw materials in the modern industry of basic organic and petrochemical synthesis with a continuing tendency to increase demand for their consumption.

Feature analysis of vapor-phase chromatography of high boiler organic compounds

The paper presents the physical-chemical features of the vapor-phase chromatography method for the analysis of polar high boiler organic compounds. The application conditions of vapor-phase chromatography for the research of petrochemical synthesis products are analyzed. The mechanism of chromatographic seperation of compounds in the vapor-liquid-solid phase system is reviewed. The physical-chemical parameters of application of vapor-phase chromatography are provided. It is shown that liquid crystals can be used for the efficiency increase of the analysis of high boiler organic compounds as hard carriers. Thus, isomer compounds in the flow of water steam may be seperated. The usage of water-formamide mixture as a gas carrier enables the analysis of high boiler amine-based organic compounds. Natural, modified zeolite-containing tuff, diatoms and zeolites can be used as adsorbents and hard carriers in the separation of high boiler products of petrochemical synthesis.

Cross-sectoral synergy between municipal wastewater treatment, cement manufacture and petrochemical synthesis via clean transformation of sewage sludge

The municipal wastewater treatment sector requires sustainable management of sewage sludge to fundamentally contribute to building zero-waste cities.

Norbornadiene as a Universal Substrate for Organic and Petrochemical Synthesis

A wide range of rare polycyclic hydrocarbons can be obtained through catalytic processes involving norbornadiene (NBD). The problem of selectivity is crucial for such reactions. The feasibility of controlling<br />selectivity and reaction rate has been shown for cyclic dimerization, co-dimerization, isomerization and allylation of NBD. Kinetic rules have been scrutinized. Consistent mechanisms have been proposed. Factors<br />affecting directions of the reactions and allowing us to obtain individual stereoisomers quantitatively, have been established. A series of novel unsaturated compounds has been synthesized; they incorporate a<br />set of double bonds with different reactivity and can find an extremely wide range of applications.