scholarly journals Mechanism and kinetics of dye desorption from dye-loaded carbon (XC-72) with alcohol-water system as desorbent

2017 ◽  
Vol 76 (5) ◽  
pp. 1243-1250 ◽  
Author(s):  
Xiang Xing ◽  
Hongxia Qu ◽  
Ri Shao ◽  
Qiuyang Wang ◽  
Huifang Xie
Keyword(s):  
Rhodamine B ◽  
Water System ◽  
Carbon Chain ◽  
Desorption Kinetics ◽  
Acid Orange 7 ◽  
Alcohol Content ◽  
Alcohol Water ◽  
Mechanism And Kinetics ◽  
Kinetics Of ◽  
Desorption Model

In this paper, alcohol (methanol, ethanol, n-propanol)-water system was used as solution for the desorption of Acid Orange 7 (AO7), Ponceau 2R and Rhodamine B (RhB) from dye-loaded carbon (XC-72). Excellent degradation efficiency was obtained (desorption efficiency reaches 77.35%, 85.60%, 96.86% for Ponceau 2R, AO7 and Rhodamine B, respectively) and it was significantly influenced by alcohol content and the length of carbon chain in alcohol (hydrophobicity). In addition, desorption kinetics was fitted by a second-order desorption model, and the desorbed quantity at equilibrium (qe) and rate constant (kd) were calculated, respectively.

A Langmuir-like desorption model for reflecting the inhomogeneous pore structure of coal and its experimental verification

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2434-2440 ◽  
Author(s):  
Haina Jiang ◽  
Yuanping Cheng ◽  
Liang Yuan
Keyword(s):  
Pore Structure ◽  
Experimental Verification ◽  
Desorption Kinetics ◽  
Kinetics Of ◽  
Desorption Model

A Langmuir-like model was established to describe the desorption kinetics of methane in coal with inhomogeneous pore structure.

Oil extraction from the sunflower seeds, mechanism and kinetics of the process

2020 ◽  
Vol 3 (1) ◽  
pp. 155-160
Author(s):  
Ye. M. Semenyshyn ◽  
◽  
V. M. Atamanyuk ◽  
O. Ya. Dobrovetska ◽  
T. I. Rymar ◽  
...  
Keyword(s):  
Oil Extraction ◽  
Sunflower Seeds ◽  
Mechanism And Kinetics ◽  
Kinetics Of

Studies on the Behavior Some Paints in Electro-insulating Fluid Based on Vegetable Esters

2018 ◽  
Vol 69 (5) ◽  
pp. 1139-1144
Author(s):  
Iosif Lingvay ◽  
Adriana Mariana Bors ◽  
Livia Carmen Ungureanu ◽  
Valerica Stanoi ◽  
Traian Rus
Keyword(s):  
Structural Changes ◽  
Oxidation Processes ◽  
High Oleic ◽  
Painting Materials ◽  
Insulating Paper ◽  
Different Types ◽  
Mechanism And Kinetics ◽  
Kinetics Of ◽  
Natural Ester

For the purpose of using three different types of painting materials for the inner protection of the transformer vats, their behavior was studied under actual conditions of operation in the transformer (thermal stress in electro-insulating fluid based on the natural ester in contact with copper for electro-technical use and electro-insulating paper). By comparing determination of the content in furans products (HPLC technique) and gases formed (by gas-chromatography) in the electro-insulating fluid (natural ester with high oleic content) thermally aged at 130 �C to 1000 hours in closed glass vessels, it have been found that the presence the investigated painting materials lead to a change in the mechanism and kinetics of the thermo-oxidation processes. These changes are supported by oxygen dissolved in oil, what leads to decrease both to gases formation CO2, CO, H2, CH4, C2H4 and C2H6) and furans products (5-HMF, 2-FOL, 2 -FAL and 2-ACF). The painting materials investigated during the heat treatment applied did not suffer any remarkable structural changes affecting their functionality in the electro-insulating fluid based on vegetable esters.

Desorption Kinetics of Cadmium and Lead from Goethite

2002 ◽  
Vol 66 (3) ◽  
pp. 797 ◽  
Author(s):  
Leslie J. Glover ◽  
Matthew J. Eick ◽  
Patrick V. Brady
Keyword(s):  
Desorption Kinetics ◽  
Cadmium And Lead ◽  
Kinetics Of

Mechanism and Kinetics of the Hydrogen Failure of Thermoelectric Materials during Water Electrolysis

2020 ◽  
Vol 2020 (10) ◽  
pp. 1102-1115
Author(s):  
M. A. Korzhuev ◽  
I. V. Katin ◽  
M. A. Kretova ◽  
E. S. Avilov
Keyword(s):  
Thermoelectric Materials ◽  
Water Electrolysis ◽  
Mechanism And Kinetics ◽  
Kinetics Of
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