English

Harouna Gado Ibrahim,Josué Pakmogda,Daho Tizane,Sanogo Oumar,Issa Balarabé

doi:10.5897/ajest2018.2631

Abstract

This work is focused on the design and testing of a co-current fixed bed gasifier with two air injections. The electric power of the gasifier was set at 10 kW. The design is based on experimental data relating to specific gas production rate, engine power efficiencies, biomass flow rate, pyrolysis and reduction time etc. The gasification tests were conducted with rice husk, hulls of balanites aegyptiaca and charcoal. The realized gasifier has a diameter of the grid and a total height of 14 and 87 cm, respectively. A mass of 6.7, 17.9 and 10.8 kg were respectively gasified for rice husk, hulls of balanites aegyptiaca and charcoal. The highest temperatures (968°C in the oxidation zone) were obtained during charcoal gasification with a reaction time of 244 min. the temperature of 625°C in the oxidation zone and a reaction time of 114 min were obtained for the gasification of the hulls of balanites.   Key words: Gasification, design, rice husk, balanites aegyptiaca hulls, charcoal. &nbsp

Highlights

The socio-economic context of the African countries is characterized by a strong demography and low per capita income, for the countries of the West African Economic and Monetary Union (UEMOA)
Temperature rapid increase is observed during the gasification of agricultural residues which is due to the rapid combustion at the primary air inlet at the beginning of the gasification trials
The results show a high average temperatures and unconverted carbon and low biomass consumption rate obtained for charcoal gasification comparatively to the raw biomass gasification

Summary

Introduction

The socio-economic context of the African countries is characterized by a strong demography and low per capita income, for the countries of the West African Economic and Monetary Union (UEMOA). The UEMOA countries must ensure a strong economic growth in order to achieve a sustainable development of their populations. The achievement of such economic growth requires the increase of productivity in the primary or even secondary sector.

Objectives

Methods

Results

Conclusion