Photodecomposition kinetics of lead azide (Pb(N3)2) studied by optical extinction and nitrogen gas evolution

1982 ◽  
Vol 86 (19) ◽  
pp. 3884-3893 ◽  
Author(s):  
W. L. Garrett ◽  
D. A. Wiegand
Keyword(s):  
Lead Azide ◽  
Gas Evolution ◽  
Nitrogen Gas ◽  
Optical Extinction ◽  
Kinetics Of

Integration of titrimetric measurement, off-gas analysis and NOx− biosensors to investigate the complexity of denitrification processes

2004 ◽  
Vol 50 (11) ◽  
pp. 135-141 ◽  
Author(s):  
S.H. McMurray ◽  
R.L. Meyer ◽  
R.J. Zeng ◽  
Z. Yuan ◽  
J. Keller
Keyword(s):  
Nox Reduction ◽  
Treatment Plant ◽  
Single Step ◽  
Gas Analysis ◽  
Measuring Process ◽  
Nitrogen Gas ◽  
Detailed Measurement ◽  
On Line ◽  
Kinetics Of ◽  
Denitrification Process

The denitrification process, namely the reduction of nitrate (NO3−) to nitrogen gas (N2), often cannot be simply modelled as a single step process. For a more complete and comprehensive model the intermediates, particularly nitrite (NO2−) and nitrous oxide (N2O), need to be investigated. This paper demonstrates the integration of titrimetric measurements and off-gas analysis with on-line nitrite plus nitrate (NOx−) biosensors, highlighting the necessity of measuring process intermediates with high time-scale resolution to study and understand the kinetics of denitrification. Investigation of activated sludge from a full-scale treatment plant showed a significant accumulation of NO2−, which appeared to impact on the overall denitrification rate measured as NOx− reduction or N2 production. A different sludge obtained from a lab-scale bioreactor produced N2O instead of N2 as the end product of denitrification. The two examples both illustrate the complexity of denitrification and stress the need for the more versatile and detailed measurement procedures, as presented in this paper.

Kinetics of Thermal Decomposition of Tar in the Presence of Air and Nitrogen Gas

2019 ◽  
Vol 33 (10) ◽  
pp. 10167-10175 ◽  
Author(s):  
Olalekan S. Alade ◽  
M. Mahmoud ◽  
D. A. Al Shehri ◽  
Saheed A. Ganiyu ◽  
Ayman Al-Nakhli ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Nitrogen Gas ◽  
Kinetics Of Thermal Decomposition ◽  
Kinetics Of

Microcalorimetry and Kinetics of Biodiesel

2014 ◽  
Vol 592-594 ◽  
pp. 1647-1651
Author(s):  
S.P. Sivapirakasham ◽  
A. Afsal Khan ◽  
Mane G. Yogesh ◽  
R. Anand
Keyword(s):  
Activation Energy ◽  
Kinetic Model ◽  
Heating Rate ◽  
Diesel Fuel ◽  
Fossil Fuel ◽  
Uniform Heating ◽  
Nitrogen Gas ◽  
Gas Atmosphere ◽  
Great Acceptance ◽  
Kinetics Of

Now a day biodiesel becomes best alternative for diesel fuel. Thermogravimetry technique has great acceptance in the field of fossil fuel. The thermal and kinetics properties of diesel and Jatropha biodiesel are analyzed by using popular technique of thermogravimetry. The aim is to study the behavior of diesel, biodiesel and their blends in Nitrogen gas atmosphere at the heating rate of 5K/min, 10K/min and 15K/min from 30°C to 600°C. From study it is found that as heating rate increases peak is shifting toward higher value which shows that there is less uniform heating. The study clearly shows biodiesel is more stable than diesel indicating that transesterification make sample less stable. The Arrehenius Kinetic model is applied to study the activation energy. As percentage of biodiesel increases, stability of sample increases and hence increases in activation energy

Kinetics of Gas Evolution from Supersaturated Oils at Elevated Pressures and Temperatures

2020 ◽  
Vol 34 (5) ◽  
pp. 5537-5544
Author(s):  
Michael Angelo Miranda ◽  
Hariprasad J. Subramani ◽  
Sayeed A. Mohammad ◽  
Clint P. Aichele
Keyword(s):  
Gas Evolution ◽  
Elevated Pressures ◽  
Kinetics Of

Impact of Supersaturation Ratio on the Kinetics of Gas Evolution at Elevated Pressures

2020 ◽  
Vol 34 (12) ◽  
pp. 15812-15818
Author(s):  
Michael Angelo Miranda ◽  
Hariprasad J. Subramani ◽  
Clint P. Aichele
Keyword(s):  
Gas Evolution ◽  
Supersaturation Ratio ◽  
Elevated Pressures ◽  
Kinetics Of
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