Combined Method of Hydrocarbon Conversion in a Tubular Reactor with a Catalyzing Box, and Its Mathematical Model

2002 ◽  
Vol 5 (4) ◽  
pp. 9
Author(s):  
Abdumumin Sharifov
Keyword(s):  
Mathematical Model ◽  
Tubular Reactor ◽  
Hydrocarbon Conversion ◽  
Combined Method

Convective tube furnace for hydrocarbon conversion, and mathematical model of furnace

1974 ◽  
Vol 10 (12) ◽  
pp. 945-949
Author(s):  
M. Kh. Sosna ◽  
B. V. Yagnyatinskii ◽  
Yu. A. Sokolinskii ◽  
V. I. Frolova ◽  
V. P. Semenov ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Tube Furnace ◽  
Hydrocarbon Conversion

scholarly journals Methodology for determining the parameters of drilling mode for directional straight sections of well using screw downhole motors

2020 ◽  
Vol 241 ◽  
pp. 105 ◽  
Author(s):  
V. Litvinenko ◽  
M. Dvoinikov
Keyword(s):  
Mathematical Model ◽  
Stable Operation ◽  
Geometrical Parameters ◽  
Directional Drilling ◽  
Optimal Parameters ◽  
Combined Method ◽  
Steady State Operation ◽  
Drilling String ◽  
Simultaneous Rotation

Article presents results of study on possibility of increasing the efficiency of drilling directional straight sections of wells using screw downhole motors (SDM) with a combined method of drilling with rotation of drilling string (DS). Goal is to ensure steady-state operation of SDM with simultaneous rotation of DS by reducing the amplitude of oscillations with adjusting the parameters of drilling mode on the basis of mathematical modeling for SDM – DS system.Results of experimental study on determination of extrema distribution of lateral and axial oscillations of SDM frame depending on geometrical parameters of gerotor mechanism and modes ensuring stable operation are presented.Approaches to development of a mathematical model and methodology are conceptually outlined that allow determining the range of self-oscillations for SDM – DS system and boundaries of rotational and translational wave perturbations for a heterogeneous rod with an installed SDM at drilling directional straight sections of well. This mathematical model of SDM – DS system's dynamics makes it possible to predict optimal parameters of directional drilling mode that ensure stable operation of borehole assembly.  

scholarly journals Current efficiency in the chlorate cell process

2014 ◽  
Vol 79 (6) ◽  
pp. 677-688 ◽  
Author(s):  
Miroslav Spasojevic ◽  
Lenka Ribic-Zelenovic ◽  
Pavle Spasojevic ◽  
Branislav Nikolic
Keyword(s):  
Mathematical Model ◽  
Current Efficiency ◽  
Tubular Reactor ◽  
Linear Increase ◽  
Cell Process ◽  
Set Up ◽  
The Mathematical Model ◽  
Production Conditions ◽  
Good Agreement ◽  
Chlorate Production

A mathematical model has been set up for current efficiency in a chlorate cell acting as an ideal electrochemical tubular reactor with a linear increase in hypochlorite concentration from the entrance to the exit. Good agreement was found between the results on current efficiency experimentally obtained under simulated industrial chlorate production conditions and the theoretical values provided by the mathematical model.

Mathematical Model of Low Density Polyethylene Tubular Reactor

1982 ◽  
pp. 579-590 ◽  
Author(s):  
G. DONATI ◽  
L. MARINI ◽  
G. MARZIANO ◽  
C. MAZZAFERRI ◽  
M. SPAMPINATO ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Tubular Reactor ◽  
Low Density Polyethylene ◽  
Low Density

scholarly journals Identification of areas of emergence of critical flow regimes of nonlinear viscous liquids in a tubular reactor

2019 ◽  
Vol 124 ◽  
pp. 05046
Author(s):  
S.A. Livshits ◽  
N.A. Yudina ◽  
T.U. Dunaeva ◽  
E.K. Nikolaeva ◽  
S.R. Enikeeva
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Continuous Production ◽  
Tubular Reactor ◽  
Flow Regimes ◽  
Critical Flow ◽  
Control Parameters ◽  
Viscous Liquids ◽  
Production Scheme ◽  
The Mathematical Model

The mathematical model describing heat-mass transfer in rheologically complex media in a tubular reactor is developed in the article. Using the example of the continuous production scheme for grade B2 polymethacrylate, solutions of the characteristic equations confirming the possibility of emergence the critical flow regimes for certain sets of control parameters were obtained.

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