The study presents findings from an extensive analysis of coal dust sourced the raw Kulan deposits in Kazakhstan.Various research methodologies including X-ray fluorescence analysis, chromatographic NMR spectral thermogravimetric and IR spectroscopy were employed.Thermogravimetric (TGA DTA) was utilized to explore influence dispersion temperature on mass loss, while granulometric sieving revealed heterogeneous nature sample, with particle sizes ranging 80-160 µm for technical analysis.It...

Dry reforming of methane (DRM) is a promising method to utilize two greenhouse gases, such as CH4 and CO2, produce synthesis gas. In the current work, both monometallic Ni bimetallic Ni–Fe catalysts with different Fe/Ni molar ratios, synthesized by solution combustion (SCS) in DRM, were investigated using feed ratio CH4/CO2/Ar 1:1:1 at 600–900 °C. The characterized several physicochemical techniques X-ray diffraction (XRD), scanning electron microscopy energy-dispersive (SEM-EDX)...

The constantly increasing growth in the number of cars is one reasons for deterioration ecological situation cities and large settlements. In Kazakhstan, on a national scale, share motor vehicles total emissions pollutants into atmosphere by all technogenic sources reaches average 40%, mass industrial waste - 2%. content toxic substances exhaust diesel gasoline engines varies depends type engine mode operation, as well quality fuel, composition combustible mixture cylinders, speed driving...

Abstract Several bimetallic Ni−Co catalysts supported on θ‐Al 2 O 3 together with 10 wt % Ni and Co were prepared via the incipient wetness method, characterized by X‐ray diffraction (XRD), nitrogen adsorption, transmission electron microscopy, temperature programmed reduction, CO desorption, Fourier Transformed Infrared Spectroscopy (FTIR) pyridine adsorption‐desorption tested in dry methane reforming at 700 °C a fixed bed reactor. According to XRD metal oxide crystallite sizes decreased...

This work investigates the electrochemical behavior of hybrid supercapacitors with carbon-based electrodes different porosity using 5M NaNO3 + 0.5M KBr electrolyte to optimize energy storage processes. Three types carbon materials were synthesized: activated from rice husk (RH) a specific surface area ~2300 m2/g and pore size < 1 nm, templated carbons magnesium citrate (MP-8) glucose SiO2 as template (G7), having areas 1976 1320 sizes 3.4 7 respectively. The microporous structure (AC)...

The article describes some variants of mechanisms nitro compounds reduction, offered by authors in the scientific literature. focus is on description work Kazakh and Russian chemists working field catalysis. In most works, classical scheme mechanism hydrogenation Haber-Lukashevich nitrobenzene confirmed detailed experimental methods. One interesting aspect Ya.A. Dorfman which used orbital theory approach constructed light modern representations valid for group various catalysts. Among...

Co–Mg catalysts for methane combustion were synthesized and studied, revealing the transformation of MgCo2O4 spinel into a CoO–MgO solid solution with oxygen release from lattice as calcination temperature increased. Repeated heat treatment calcined at lower temperatures led to regeneration segregation phase. A TPR samples showed presence two characteristic peaks, first which relates transition Co3+Oh Co2+Oh structure CoO, second reduction CoO Co°. The peak was observed 540–620 °C below...

Demand for environmentally friendly types of energy is growing all over the world, which naturally increases intensity work on production hydrogen-containing fuel mixtures. Steam reforming methanol one most effective areas research, as it a process with low consumption. The results steam catalysts prepared by solution combustion synthesis (SCS) and impregnation moisture capacity are presented. Investigation activity Cu-Ce-Al different composition was carried out hydrogen comparison SCS...

The demand for environmentally friendly types of energy is growing all over the world, which naturally increases intensity studies on fuel mixtures that have high contents hydrogen. In this case, methanol steam reforming a leading effective research area, as it process with low consumption. results synthesized catalysts by solution combustion synthesis (SCS), self-propagating high-temperature (SHS), and moisture impregnation capacity methods are presented. A study was conducted to evaluate...

In present work the paths for obtaining road oil bitumen are presented from wastes of coal Karazhyra field. For improvement quality obtained modification was carried out elementary sulfur. The processes by sulfur allow to obtain viscous high quality.

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The paper describes the hydrogenating thermo-catalytic processing of plastic waste on developed new catalysts based natural zeolite from Tayzuzgen deposit (Kazakhstan), with molybdenum additives (on base (NH 4 ) 6 Mо 2 O 24 •4H O).Fuel oil Kumkol field characterized by a high content paraffin hydrocarbons, pour point and low sulfur was used as additional raw material, source hydrogen paste generator.Analysis reaction products shows that process proceeds mainly formation aromatic compounds,...

The paper discusses the issues of catalytic cracking processes and presents experimental results authors with use catalysts based on natural Shankanai zeolite (Kazakhstan) heteropoly acids (HPA).SEM analysis synthesized catalyst structure indicates presence its main elements prevailing surface zeolite.Also, intense spectra components HPA (tungsten phosphorus) are revealed.Possibly, it is because high degrees dispersion distribution PW12-HPA particles over clinoptilolite surface.In this...

Oriental Journal of Chemistry is a peer reviewed quarterly research journal pure and applied chemistry. It publishes standard papers in almost all thrust areas current chemistry academic commercial importance. provides platform for rapid publication quality papers, reviews letters. abstracted indexed reputed National International agencies.

Oriental Journal of Chemistry is a peer reviewed quarterly research journal pure and applied chemistry. It publishes standard papers in almost all thrust areas current chemistry academic commercial importance. provides platform for rapid publication quality papers, reviews letters. abstracted indexed reputed National International agencies.

Oriental Journal of Chemistry is a peer reviewed quarterly research journal pure and applied chemistry. It publishes standard papers in almost all thrust areas current chemistry academic commercial importance. provides platform for rapid publication quality papers, reviews letters. abstracted indexed reputed National International agencies.

Oriental Journal of Chemistry is a peer reviewed quarterly research journal pure and applied chemistry. It publishes standard papers in almost all thrust areas current chemistry academic commercial importance. provides platform for rapid publication quality papers, reviews letters. abstracted indexed reputed National International agencies.

The article is devoted to issues of amines production from nitro compounds. processes catalytic reduction aromatic nitrocompounds by hydrogen have practically superseded all other methods for the in large-tonnage plants. Aromatic mono-, di- and polyamines, due their high reactivity, are widely used various compounds (photochemicals, fuel stabilizers additives lubricating oils, paint varnish industry, painting natural synthetic fibers). Authors compare show different variants apparature...

This paper represents the results of researching recycling plastic wastes by hydrogenation in presence catalysts: natural zeolite, bauxite, red sludge (wastes from bauxite), as a hydrogen source was used heavy residues oil process. method allowed to define optimal conditions process and get liquid products enriched with isoalkanes, cycloalkanes, aromatic heteroaromatic hydrocarbons.

Herein, we disclosed a method of preparing nanocatalyst containing nickel-cobalt by impregnation in hydrochloric acid medium. Optimal conditions were established for all stages preparation using the probabilistic–deterministic experiment planning: concentration—1 mol/L, ratio HCl concentration to nickel concentration—20, cobalt concentration—20. The planning allows varying factors simultaneously and obtaining quantitative estimates main effects interaction, as well establishing dominant...