Gas chromatography with backflushing, with linear temperature programming in the first direction and a programmed longitudinal positive temperature gradient during the opposite direction of gas flow

1977 ◽  
Vol 133 (2) ◽  
pp. 253-261 ◽  
Author(s):  
Pierre Le Parlouer ◽  
Bernard Boinon ◽  
Jean-Maurice Vergnaud
Keyword(s):  
Gas Chromatography ◽  
Temperature Gradient ◽  
Opposite Direction ◽  
Gas Flow ◽  
Positive Temperature ◽  
Temperature Programming ◽  
Linear Temperature ◽  
Linear Temperature Programming ◽  
Positive Temperature Gradient

Investigation of concrete box girder positive temperature gradient patterns considering different climatic regions

Structures ◽  
2022 ◽  
Vol 35 ◽  
pp. 591-607
Author(s):  
Chenzhi Cai ◽  
Shiji Huang ◽  
Xuhui He ◽  
Tieming Zhou ◽  
Yunfeng Zou
Keyword(s):  
Temperature Gradient ◽  
Positive Temperature ◽  
Box Girder ◽  
Climatic Regions ◽  
Concrete Box Girder ◽  
Positive Temperature Gradient

scholarly journals Pyrolytic Characteristics and Kinetics ofPhragmites australis

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Hui Zhao ◽  
Huaxiao Yan ◽  
Congwang Zhang ◽  
Xiaodong Liu ◽  
Yanhui Xue ◽  
...  
Keyword(s):  
Degradation Rate ◽  
Processing System ◽  
Preexponential Factor ◽  
Inert Atmosphere ◽  
Probable Mechanism ◽  
Temperature Programming ◽  
Linear Temperature ◽  
Linear Temperature Programming ◽  
Programming Process ◽  
Kinetics Of

The pyrolytic kinetics ofPhragmites australiswas investigated using thermogravimetric analysis (TGA) method with linear temperature programming process under an inert atmosphere. Kinetic expressions for the degradation rate in devolatilization and combustion steps have been obtained forP. australiswith Dollimore method. The values of apparent activation energy, the most probable mechanism functions, and the corresponding preexponential factor were determined. The results show that the model agrees well with the experimental data and provide useful information for the design of pyrolytic processing system usingP. australisas feedstock to produce biofuel.

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