Syngas Compositions, Cold Gas and Carbon Conversion Efficiencies for Different Coal Gasification Processes and all Coal Ranks Volume 1 - Issue 23

Said MA Ibrahim* and Mostafa EM Samy

• Faculty of Engineering, Department of Mechanical Engineering, Al-Azhar University, Egypt

Received: March 13, 2020   Published: June 11, 2020

Corresponding author: Said MA Ibrahim and also in citation, Faculty of Engineering, Department of Mechanical Engineering, Al- Azhar University, Egypt

DOI: 10.32474/JOMME.2020.01.000109

 

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Abstract

This Paper presents comparison of syngas compositions, for all coal ranks, as produced from different types of coal gasification processes currently in use, namely entrained flow, fluidized bed, and fixed bed gasifiers. Cold gas and carbon conversion efficiencies were investigated. The syngas composition varies with the applied gasification process. The importance of this research arises from the fact that gasifiers produce the environmentally clean fuel required to run any Integrated Gasification Combined Cycle power system. A procedure was conducted to get estimates for bituminous coal. It is important to have knowledge of the chemical reactions which take place in each gasifier and the raw syngas produced from the specific reaction involved to develop an Integrated Coal Gasification Combined Power Generation plant with CO₂ recovery in order to increase the cycle efficiency and mitigate CO₂ emission and other pollutants. The results indicate that the entrained flow gasifier is the dominant one.

Keywords: Syngas; Coal gasification; Cold gas efficiency; Coal conversion efficiency; Gasifiers

Abstract| Introduction| The Gasification Process| Types of Gasifiers| Methodology of Calculations| Data and Assumptions| Detailed Calculations for Bituminous Coal| Calculations for Other Coals| Results and Discussion| Conclusions| Conflict of Interest| References|