scholarly journals ASSESSMENT OF A POSSIBILITY OF QUALITY IMPROVING OF REDUCING GAS BY TWO STAGE NATURAL GAS CONVERSION

2019 ◽  
pp. 43-49
Author(s):  
A.A. Nebesniy ◽  
V.G. Kotov ◽  
O.M. Svyatenko ◽  
D.S. Filonenko ◽  
A.I. Khovavko
Keyword(s):  
Heat Treatment ◽  
Natural Gas ◽  
Chemical Reactions ◽  
Temperature Region ◽  
Catalyst Layer ◽  
Gas Treatment ◽  
Gas Processing ◽  
Second Stage ◽  
Reducing Gas ◽  
Gas Conversion

The analysis of the method of reducing gas obtaining by natural gas air reforming with cooling and drying of obtained products on the first stage of the process, their heat treatment in the catalyst layer, chilling and drying — on the second stage is made. It is determined that the temperature of a thermal gas treatment at the second stage of the process, shall not be less than 850–950 °C, which allows to increase the ratio (CO + H2)/CO2 in the resulting reducing gas. The values of the minimum temperature of gas processing on the second stage of the process depending on the pressure in the system are calculated. The total heat effect of chemical reactions depending on the temperature of gas heat treatment at different pressure is defined. It is shown the possibility of compensation for the heat expenditure required for the chemical reactions behavior in the temperature region above 850 °C by gas overheating in excess of the required level prior to its entering into catalyst bed on the second stage of the process. Ref. 20, Fig. 3, Tab. 1.

Effect of Alumosilicate Adsorbent Regeneration Conditions on the Dehydration of Methanol Extracted from Natural Gas

2020 ◽  
Vol 24 (8) ◽  
pp. 17-21
Author(s):  
Z.А. Temerdashev ◽  
A.V. Rudenko ◽  
I.A. Kolychev ◽  
A.S. Kostina
Keyword(s):  
Natural Gas ◽  
Silica Gel ◽  
Silica Gels ◽  
Treatment Unit ◽  
Fuel Gas ◽  
Gas Treatment ◽  
Adsorbent Regeneration ◽  
Gas Processing ◽  
Natural Gas Processing ◽  
Processing Plants

This paper focuses on the parameters of the technological regime for the regeneration of aluminosilicate adsorbents on natural gas processing plants adsorption type on the dehydration of methanol from natural gas. The object of this study were the non-hydrocarbon fraction of liquid products of the purification of natural gas from an adsorption unit on silica gel with countercurrent regeneration. Gas treatment plants was optimized using BASF KC-Trockenperlen silica gels and microporous silica gel adsorbents (АСМ). The direct-flow regeneration technology on natural gas processing plants with adsorption purification оn aluminosilicate adsorbents contributes to a more efficient reaction of the conversion of methanol to dimethyl ether and his process reduces the volume of non-hydrocarbon waste fraction. Decreasing methanol concentrations reduces atmospheric emissions and saves fuel gas consumed by a stationary thermal treatment unit.

Numerical study of the flow of a mixture of reacting gases in an inhomogeneous catalyst layer

2003 ◽  
Vol 3 ◽  
pp. 246-254
Author(s):  
C.I. Mikhaylenko ◽  
S.F. Urmancheev
Keyword(s):  
Velocity Field ◽  
Chemical Reactions ◽  
Porous Layer ◽  
Computational Experiment ◽  
Numerical Study ◽  
Fluid Velocity ◽  
Catalyst Layer ◽  
Granular Catalyst ◽  
Fluid Velocity Field

The behavior of a liquid flowing through a fixed bulk porous layer of a granular catalyst is considered. The effects of the nonuniformity of the fluid velocity field, which arise when the surface of the layer is curved, and the effect of the resulting inhomogeneity on the speed and nature of the course of chemical reactions are investigated by the methods of a computational experiment.

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