Estimation of the effect of temperature, the concentration of oxygen and catalysts on the oxidation of the thermoanthracite carbon material
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 2, Issue 6
Abstract
<p>The effect of temperature, oxygen concentration and gas-air mixture flow rate on the oxidation efficiency of thermoanthracite carbon granular material with the formation of carbon monoxide and dioxide is considered. The modeled installation implies heating of the carbon material sample in a heat chamber with constant passing of the gas-air mixture obtained by adjusting the supply of air and carbon dioxide through the heating zone. The temperature range was 20–850 °C.</p><p>It is found that noticeable oxidation of carbon material in a heat chamber during purging of gas-air mixtures with an oxygen content of 8–21 % begins at temperatures above 500 °C, and significant concentrations of carbon monoxide are formed at temperatures of 600–800 °C. It is determined that, at an oxygen concentration of 14 %, the content of carbon monoxide in flue gases is minimal in the chosen range of oxygen concentrations of 8–21 %.</p><p>It is shown that the use of the gas mixture saturated with water vapor increases the efficiency of carbon monoxide reoxidation at temperatures of 650–850 °C, but when using the manganese catalyst, the catalytic effect of water vapor is not observed.</p><p>The use of the manganese catalyst applied as microcrystals on the carbon material surface is proposed, which provides a significant reduction of CO concentrations at temperatures of 500–850 °C. The disadvantage of the process is a 1.6–2.0 times increase in carbon material losses due to the acceleration of coal oxidation to CO and CO<sub>2</sub>.</p>The possibility to create certain conditions for the technological process of oxidation of thermoanthracite carbon granular material at enterprises to provide a reduction of the carbon monoxide content in oxidation products is presented
Authors and Affiliations
Yevgen Panov, Nikolai Gomelia, Olena Ivanenko, Andrii Vahin, Serhii Leleka
Keywords
Related Articles
- EP ID EP666317
- DOI 10.15587/1729-4061.2019.162474
- Views 50
- Downloads 0
The analysis of friction effect on equal channel angular pressing (ECAP) process on Aluminium 5052 to homogeneity of strain distribution
<p class="SDRMText">In the current study, the effect of friction coefficient on strain distribution and deformation was investigated with the computer simulation providing a better understanding of the material flow mech...
Definition of the thermal and fire-protective properties of ethylene-vinyl acetate copolymer nanocomposites
<p>To create a fire retardant coating that can be applied in the hydrocarbon fire, the nanocomposites of the ethylene-vinyl acetate (EVA) copolymer with montmorillonite (MMT), thermally expanded graphite (EG) are synthes...
Effect of banana powder and butter on the formation of the crystalline phase of sugar fondant
<p>Taking into consideration modern requirements to technological characteristics of decorative semi-finished products, micronutrient composition, we developed the formulation for the innovative confectionery semi-finish...
Surface hardening and finishing of metallic products by hybrid laserultrasonic treatment
<p>Theoretical and experimental study of the possibilities of using laser heat treatment (LHT) combined with ultrasonic impact treatment (UIT) for surface hardening and finishing of metallic products was carried out. The...
Establishing the effect of eggplant powders on the rheological characteristics of a semi-finished product made from liver pate masses
<p>Results of the study of functional properties of partially prepared liver pate masses with partial replacement of beef liver with edible eggplant powder (3 %, 5 %, 7 %) were presented. Structural and mechanical charac...