Decomposition kinetics for supercooled austenite in steel 15Kh1M1F

1982 ◽  
Vol 24 (8) ◽  
pp. 572-574
Author(s):  
A. P. Smirnova ◽  
I. I. Mints ◽  
M. M. Shteinberg
Keyword(s):  
Decomposition Kinetics ◽  
Supercooled Austenite ◽  
Steel 15Kh1m1f

Decomposition kinetics of supercooled austenite in moderate-carbon pipe steel

2008 ◽  
Vol 38 (8) ◽  
pp. 608-610
Author(s):  
V. A. Khotinov ◽  
E. S. Chernykh ◽  
S. Yu. Zhukova ◽  
V. P. Shveikin ◽  
V. M. Farber
Keyword(s):  
Pipe Steel ◽  
Decomposition Kinetics ◽  
Supercooled Austenite ◽  
Kinetics Of

scholarly journals Simulation of Decomposition Kinetics of Supercooled Austenite in Powder Steel

2017 ◽  
Vol 87 ◽  
pp. 092029 ◽  
Author(s):  
M S Tsyganova ◽  
A G Ivashko ◽  
I N Polyshuk ◽  
R I Nabatov ◽  
A I Tsyganova
Keyword(s):  
Powder Steel ◽  
Decomposition Kinetics ◽  
Supercooled Austenite ◽  
Kinetics Of

Decomposition kinetics of supercooled austenite in porous powder steel

2016 ◽  
Vol 46 (3) ◽  
pp. 196-200 ◽  
Author(s):  
A. G. Ivashko ◽  
M. S. Tsyganova ◽  
R. I. Nabatov
Keyword(s):  
Powder Steel ◽  
Decomposition Kinetics ◽  
Supercooled Austenite ◽  
Porous Powder ◽  
Kinetics Of

Thermal Decomposition Kinetics of Torrefied Oil Palm Empty Fruit Bunch Briquettes

2016 ◽  
Vol 10 (3) ◽  
pp. 325-328 ◽  
Author(s):  
Bemgba Nyakuma ◽  
◽  
Arshad Ahmad ◽  
Anwar Johari ◽  
Tuan Abdullah ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Oil Palm ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Kinetic Properties ◽  
Tg Analysis ◽  
Empty Fruit Bunches ◽  
Thermal Lag ◽  
Profile Characteristics ◽  
Kinetics Of

The study is aimed at investigating the thermal behavior and decomposition kinetics of torrefied oil palm empty fruit bunches (OPEFB) briquettes using a thermogravimetric (TG) analysis and the Coats-Redfern model. The results revealed that thermal decomposition kinetics of OPEFB and torrefied OPEFB briquettes is significantly influenced by the severity of torrefaction temperature. Furthermore, the temperature profile characteristics; Tonset, Tpeak, and Tend increased consistently due to the thermal lag observed during TG analysis. In addition, the torrefied OPEFB briquettes were observed to possess superior thermal and kinetic properties over the untorrefied OPEFB briquettes. It can be inferred that torrefaction improves the fuel properties of pelletized OPEFB for potential utilization in bioenergy conversion systems.

Thermal Decomposition Kinetics of Glyphosate (GP) and its Metabolite Aminomethylphosphonic Acid (AMPA)

2019 ◽  
Author(s):  
Milad Narimani ◽  
Gabriel da Silva
Keyword(s):  
Thermal Decomposition ◽  
Reaction Rate ◽  
Decomposition Kinetics ◽  
Rate Theory ◽  
Thermal Decomposition Mechanism ◽  
Treatment Processes ◽  
Aminomethylphosphonic Acid ◽  
Reaction Rate Theory ◽  
Decomposition Chemistry ◽  
Kinetics Of

Glyphosate (GP) is a widely used herbicide worldwide, yet accumulation of GP and its main byproduct, aminomethylphosphonic acid (AMPA), in soil and water has raised concerns about its potential effects to human health. Thermal treatment processes are one option for decontaminating material containing GP and AMPA, yet the thermal decomposition chemistry of these compounds remains poorly understood. Here, we have revealed the thermal decomposition mechanism of GP and AMPA by applying computational chemistry and reaction rate theory methods. <br>

Using Decomposition Kinetics to Model the Removal of Mine Water Pollutants in Constructed Wetlands

1994 ◽  
Vol 29 (4) ◽  
pp. 219-226 ◽  
Author(s):  
William J. Tarutis ◽  
Richard F. Unz
Keyword(s):  
Organic Matter ◽  
Constructed Wetlands ◽  
Mine Drainage ◽  
Term Treatment ◽  
Decomposition Kinetics ◽  
Dry Density ◽  
Organic Matter Concentration ◽  
Long Term Treatment ◽  
Input Variables ◽  
Reaction Stoichiometry

Although numerous mathematical models have been used to describe decomposition, few, if any, have been used to model the removal of pollutants in constructed wetlands. A steady-state model based on decomposition kinetics and reaction stoichiometry has been developed which simulates the removal of ferrous iron entering wetlands constructed for mine drainage treatment. Input variables for the model include organic matter concentration, reaction rate coefficient, porosity and dry density, and hydraulic detention time. Application of the model assumes complete anaerobic conditions within the entire substrate profile, constant temperature, no additional organic matter input, and subsurface flow only. For these ideal conditions, model simulations indicate that wetlands constructed with readily decomposable substrates rich in organic carbon are initially capable of removing far greater amounts of iron than wetlands built with less biodegradable substrates. However, after three to five years of operation this difference becomes negligible. For acceptable long-term treatment performance, therefore, periodic additions of decomposable organic matter will be required.

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