Can I read Kinetic Model for Desulphurization at Low Temperatures Using Hydrated Sorbent on EtoBox?

Kinetic Model for Desulphurization at Low Temperatures Using Hydrated Sorbent by Nilgün Karatepe; Aysegül Ersoy-Meriçboyu; Reha Yavuz; Sadriye Küçükbayrak is a Materials Science article available to read on EtoBox.

What is Kinetic Model for Desulphurization at Low Temperatures Using Hydrated Sorbent about?

The sulphation reaction of hydrated silica fume±Ca(OH) 2 sorbents were investigated and modelled. These experiments were conducted in a thermogravimetric analyzer under isothermal conditions and in a humidi®ed gaseous atmosphere consisting of 5 vol% O 2 , 10 vol% CO 2 , 0.5 vol% SO 2 and the balance of nitrogen. The effect of the relative humidity on the reaction rate was determined by sulfating of hydrated sorbents in the gaseous atmospheres which have three different relative humidities: 25%, 55% and 90%. The unreacted shrinking core model was chosen to describe this non-catalytic solid/gas (hydrated sorbent/SO 2 ) reaction mechanism. The experimental results were found to be correlated successfully by this model. It was determined that chemical reaction is partly rate limiting especially at the beginning of sulphation, diffusion through the calcium sulphite hemihydrate product layer generally controls the reaction rate.

Who reads Kinetic Model for Desulphurization at Low Temperatures Using Hydrated Sorbent?

Author

Nilgün Karatepe; Aysegül Ersoy-Meriçboyu; Reha Yavuz; Sadriye Küçükbayrak

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0040-6031)

Published

1999

Language

EN

Field

Materials Science (Physical Sciences)