Research Article
Development of Geopolymer Cement Using Sugarcane Bagasse Ash for Application in Oil and Gas Well Cementing
Oluwasanmi Samuel Teniola*,
Ebenezer Leke Odekanle,
Felix Arome Iyalla,
Mazeed Saka
Issue:
Volume 8, Issue 2, December 2025
Pages:
34-40
Received:
22 April 2025
Accepted:
3 May 2025
Published:
2 September 2025
Abstract: As the oil and gas industry moves towards sustainable solutions, eco-friendly alternatives to traditional Portland cement, a major CO2 emitter, are essential. Sugarcane bagasse ash-based geopolymer presents a promising option, also addressing agricultural waste management issues. In this work, sugarcane baggase was collected, washed, dried and ashed to obtain the baggase ash required for the sample formation. A total of 24 samples were prepared and they were tested for density, rheology, pH, fluid loss and compressive strength. Eight of the samples were formed using 10M NaOH (SCBA 1–8), another set of eight samples were formed using 5M NaOH (SCBA 9–16), while the remaining set of eight were formed using ordinary Portland cement OPC (OPC 1–8). Results from slurry density and rheology tests revealed that geopolymer samples had higher density, plastic viscosity, yield point, and pH compared to Ordinary Portland Cement (OPC), but with lower fluid loss and less filter cake formation. However, geopolymers cement exhibited rapid gelation at high temperatures. The compressive strength of Sugarcane Bagasse-based geopolymer cement increased with temperature, indicating stronger cement for deeper drilled holes. However, the strength decreased over time with higher NaOH concentrations, highlighting that cement must be formulated for specific applications.
Abstract: As the oil and gas industry moves towards sustainable solutions, eco-friendly alternatives to traditional Portland cement, a major CO2 emitter, are essential. Sugarcane bagasse ash-based geopolymer presents a promising option, also addressing agricultural waste management issues. In this work, sugarcane baggase was collected, washed, dried and ashe...
Show More
Research Article
Extraction of Avocado Seed Oil with Ethanol and N-hexane Using CaCO3 as Coadjuvant: Optimization and Characterization
Issue:
Volume 8, Issue 2, December 2025
Pages:
41-52
Received:
11 June 2025
Accepted:
27 June 2025
Published:
2 September 2025
Abstract: This study aimed to assess the impacts of addition of CaCO3 as a coadjuvant in oil yield from Avocado Pear seed in a soxhlet extraction apparatus with ethanol and n-hexane as solvents. Response surface methodology (RSM) was employed to optimize parameters influencing oil yield during solvent extraction. A Box Behnken design with three factors: concentration of CaCO3 (1, 1.5, 2%), extraction time (90, 145, 180 min), and extraction temperature (25, 35, 45°C) was utilized for the optimization process. The linear model provided the most accurate fit to the experimental data with determination coefficient (R2) value of 0.8273. The optimized yield of avocado oil was 4.2343% for n-hexane and 6.8156% for ethanol. The fatty acids present in the oil were determined using gas chromatography, and oleic acid was the dominant fatty acid. The values of main physiochemical properties evaluated were: Light Honey brown, Honey brown – colour; Fruity odour, Fruity odour – odour; 150.0114mgKOH/g, 67.32mgKOH/g – saponification value; 1.1809506%, 1.864302% – free fatty acid; 44.892mgI/g, 65.736mgI/g – iodine value; 1.95%, 1.17% – Moisture content; 5.07, 5.04 – pH and 0.291 meq/kg, 0.558 meq/kg – peroxide value for n-hexane and ethanol solvents, respectively. The oil high saponification value and low iodine value makes it applicable in soap making industries, as lubricant in industrial machine and as a stabilizer in other industrial process.
Abstract: This study aimed to assess the impacts of addition of CaCO3 as a coadjuvant in oil yield from Avocado Pear seed in a soxhlet extraction apparatus with ethanol and n-hexane as solvents. Response surface methodology (RSM) was employed to optimize parameters influencing oil yield during solvent extraction. A Box Behnken design with three factors: conc...
Show More
,
Zainab Ayotomiwa Lawal
