Kinetics of thermal desorption and thermal conversion of adsorbates: AES studies

1978 ◽  
Vol 15 (2) ◽  
pp. 554-558 ◽  
Author(s):  
G. Robertshaw ◽  
P. J. Estrup
Keyword(s):  
Thermal Desorption ◽  
Thermal Conversion ◽  
Kinetics Of

The Staged Thermal Conversion of Sewage Sludge in the Presence of Oxygen

2019 ◽  
Vol 141 (7) ◽  
Author(s):  
Halina Pawlak-Kruczek ◽  
Mateusz Wnukowski ◽  
Krystian Krochmalny ◽  
Mateusz Kowal ◽  
Marcin Baranowski ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Sewage Sludge ◽  
Thermal Processing ◽  
Thermal Conversion ◽  
Single Step ◽  
Energy Yield ◽  
Mass Yield ◽  
Optimal Conditions ◽  
Kinetics Of ◽  
By Products

This study compares a staged thermal processing of the sewage sludge, with single step, integrated thermal processing. The aim of this study is to find the optimal conditions for drying and subsequently for carbonization/torrefaction of sewage sludge, regarding the energy consumption. This study presents the results of the drying tests performed at laboratory scale convective dryer for different parameters of drying agent (air). The tests were focused on finding and developing a method of drying that allows to minimize the energy consumption. Subsequently, both dry and vapothermal torrefaction was performed in the presence of oxygen. The kinetics of drying, using low quality heat as well as the properties of products and by-products of torrefaction in both regimes were determined. The process was characterized by mass yield and energy yield in both of the cases. There has been only scarce amount of literature studies published on the torrefaction of sewage sludge so far, without a detailed study of the composition of the torgas and tars of such origin. Performed study enables a comparison of two distinct scenarios of the processing, i.e., drying followed by dry torrefaction with a single stage of vapothermal torrefaction.

Kinetics of MoO3 thermal desorption from the surface of mechanically activated alumina

2007 ◽  
Vol 43 (5) ◽  
pp. 512-514 ◽  
Author(s):  
N. F. Kosenko ◽  
M. A. Smirnova ◽  
I. A. Ermakova
Keyword(s):  
Thermal Desorption ◽  
Activated Alumina ◽  
Kinetics Of

Adsorption of Silicon Tetrachloride on Si(111) 7×7

1988 ◽  
Vol 131 ◽  
Author(s):  
P. Gupta ◽  
P. A. Coon ◽  
B. G. Koehler ◽  
S. M. George
Keyword(s):  
Surface Temperature ◽  
Thermal Desorption ◽  
Temperature Programmed Desorption ◽  
Silicon Tetrachloride ◽  
Sticking Coefficient ◽  
Adsorption Model ◽  
Temperature Programmed ◽  
Kinetics Of

ABSTRACTThe kinetics of SiCl4 adsorption on Si(lll) 7×7 were studied using laser induced thermal desorption (LITD) and temperature programmed desorption (TPD) techniques. The initial reactive sticking coefficient of SiCl4 on Si(lll) 7×7 was observed to decrease with increasing surface temperature. This decrease was consistent with a precursor-mediated adsorption model. Both LITD and TPD experiments monitored SiCl2 as the main desorption product. These results suggest that SiC12 may be the stable chlorine species on the Si(lll) 7×7 surface.

Thermogravimetric study of the kinetics of formation of poly(para-phenylene vinylene) by thermal conversion of a sulfonium precursor

2014 ◽  
Vol 37 ◽  
pp. 170-178 ◽  
Author(s):  
Arvind Sreeram ◽  
Nimitt G. Patel ◽  
Ramaswamy I. Venkatanarayanan ◽  
Stephan J. DeLuca ◽  
Philip A. Yuya ◽  
...  
Keyword(s):  
Thermal Conversion ◽  
Phenylene Vinylene ◽  
Thermogravimetric Study ◽  
Kinetics Of Formation ◽  
Kinetics Of
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