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الأربعاء، 5 نوفمبر، 2014

Modeling of a Coal Gasification

Title: Modeling of a Coal Gasification
Author        : Basma Abd El-Razik Ahmed
Collection   : M.Sc.Chemistry
Abstract:
 The integrated gasification combined cycle IGCC is an electrical power generation system which -offers efficient generation from coal with lower effect on the environment than conventional coal power plants.
Many types of gasifiers are being used for gasification process including moving, or fixed, bed gasifies, The fluid bed gasifiers and The entrained flow gasifiers. The last one is the most common type used for coal gasification process due to its compact size compared to other gasifiers, minimal byproducts and ability to supply syngas at higher pressures.
A mathen: atical model has been developed to simulate an entrained flow gasifier using coal as a feedst ~ k. This model describes the physical and chemical processes occurring in an entrained coal gasifier. Product gas composition, Carbon conversion and Gas flow rate profiles were obtained by solving mass balance and thermodynamics equations. Parameter studies were made to provide a better understanding of the gasifier performance for various operating conditions utilizing the model.
The proposed model showed the operating parameters that could raise the carbon conversion of entrained flow gasifier to reach 100

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