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DOKA DAOURA Amadou

Publications (9)

Characterization and Evaluation of Heavy Gasoline from the RFCC Unit of Zinder Refining Company (SORAZ)

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, SAED ALI NAJI Zinab, SABIOU MAHAMAN Attika & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

Cracked heavy gasoline from SORAZ contains hydrocarbons and trace pollutants that release toxic emissions upon combustion. Ensuring its physicochemical quality is essential for environmental safety and energy performance. This document presents a summary of the study on the chara...

Open access Research Article 10.9734/ajopacs/2026/v14i2307

Preparation of Feedstock (Atmospheric Residue) for the Fluidized Catalytic Cracking (FCC) Process: A Case of the Zinder Refining Company

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, CHAIBOU OUSMANE MAMANE Imrana & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

The Fluid Catalytic Cracking unit (FCC) is a key process that plays an important technical and economic role in the refining industry. Over the past years, there has been an increased interest in applying advanced process modelling and control that would lead to a significant eco...

Open access Research Article 10.9734/ajopacs/2026/v14i2298

Characterisation of the FCC Catalyst for Fluid Catalytic Cracking of Atmospheric Residue: Application to the SORAZ FCC Catalyst

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, SAEED ALI NAJI Zinab & MANZOLA Abdou Salam · International Research Journal of Pure and Applied Chemistry · 2025

This paper presents a brief summary of the study on the characterisation of the fluid catalytic cracking catalyst used at the Zinder refining company (SORAZ) for cracking the atmospheric residue from the atmospheric distillation unit (CDU). The main objective of this study is to...

Open access Research Article 10.9734/irjpac/2025/v26i4936

Study of the Role of Catalyst in Fluidised Catalytic Cracking (FCC) of Atmospheric Residue

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, CHAIBOU OUSMANE MAMANE Imrana, SAEED ALI NAJI Zinab, SABIOU MAHAMAN Attika & MANZOLA Abdou Salam · Asian Journal of Biotechnology and Bioresource Technology · 2025

For several years now, the oil market has been transforming in the face of growing global demand for fuels, while at the same time, demand for heavy fuel oil is declining (Danial-Fortan, 2010). At the same time, dwindling conventional oil resources are gradually being replaced by...

Open access Research Article 10.9734/ajb2t/2025/v11i3240

Hydrodesulfurization of Mixed FCC Gasoil, CDU Gasoil, and Heavy Gasoline Feedstocks at the SORAZ Refinery

DOKA DAOURA Amadou, ABDOUL BARI IDI Awali, CHAIBOU OUSMANE MAMANE Imrana & MANZOLA Abdou Salam · Asian Journal of Chemical Sciences · 2025

This paper presents a set of equipment and methods for processing (hydrotreating) gas oil from the fluidized catalytic cracking (FCC) unit and the atmospheric distillation unit.  However, all the results obtained from this treatment are also presented. Since the main objective wa...

Open access Research Article 10.9734/ajocs/2025/v15i3372

Mineralogical and Physicochemical Characterization of Three Natural Bentonite Samples from the Tahoua Sites (Niger)

SAEED ALI NAJI Zinab, DOKA DAOURA Amadou, HADJ Mimoun, ROGER ANNE Cécile, G. F. Camila, CHAIBOU O. M. Imrana, R. G. Diego & MANZOLA Abdou Salam · Asian Journal of Chemical Sciences · 2026

This study evaluated the physicochemical, mineralogical, structural and textural characteristics of three natural bentonite samples collected from Adoua (BN-G₁), Mougia (Madaoua) (BN-G₂) and Bouza (BN-G₃) in the Tahoua region of Niger, with the aim of assessing their potential re...

Open access Research Article 10.9734/ajocs/2026/v16i5483

Influence of Fertilizers Made from Natural Phosphates of Tahoua on Millet Yield

ABDOUL BARI IDI Awali, DOKA DAOURA Amadou, Mijitaba Sahirou Bachir, CHAIBOU OUSMANE MAMANE Imrana, Attika SABIOU MAHAMAN & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

Recently, the interest in the potential of millets has been increased to contribute to sustainable and inclusive agricultural development, particularly in regions facing adverse impact of climate change and food insecurity. The productivity of millet-cereal cropping systems is th...

Open access Research Article 10.9734/ajopacs/2026/v14i2304

Effect of Purification on the Solubility of Natural Tahoua Phosphate in Perchloric Acid and Distilled Water

ABDOUL BARI IDI Awali, DOKA DAOURA Amadou, Mijitaba Sahirou Bachir, Dalla Azimi Mahamadou & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

The commercial phosphate from Tahoua is a sedimentary phosphate containing impurities that make phosphorus less available to plants. Furthermore, the industrial use of commercial phosphates containing non-essential metals increases the risk of environmental pollution. It is withi...

Open access Research Article 10.9734/ajopacs/2026/v14i2302

Effect of Calcination on the Solubility of Natural Tahoua Phosphate in Perchloric Acid and in Water

ABDOUL BARI IDI Awali, DOKA DAOURA Amadou, Mijitaba Sahirou Bachir, Dalla Azimi Mahamadou, Maman Dit Mansi Sitou Badamassi & MANZOLA Abdou Salam · Asian Journal of Physical and Chemical Sciences · 2026

The natural phosphate from Tahoua is a sedimentary phosphate containing a range of impurities. However, their presence in apatite makes phosphorus less available to plants. This work aims to enrich the natural phosphate from Tahoua to increase its solubility. In the first step, w...

Open access Research Article 10.9734/ajopacs/2026/v14i1292