Comparative Structural and Textural Evaluation of Biochar Derived From Devolatilized Agricultural Pods

مقال فى مجلة

2026

تم النشر فى: https://doi.org/10.1007/s12155-025-10934-9

Agricultural residues such as pods from cocoa, flamboyant, and locust bean plants represent abundant yet underutilized biomass wastes that contribute to environmental challenges when improperly managed. Converting such residues into biochar provides a sustainable approach for waste valorization and carbon sequestration. However, the high moisture and volatile contents of these residues often reduce gasification efficiency and limit biochar quality. This study investigates the influence of low-temperature pre-devolatilization on the yield, structure, and physicochemical properties of biochars derived from flamboyant (FPD), cocoa (CPD), and locust bean (LPD) pods. Each devolatilized biomass was carbonized in a biofuel-powered top-lit updraft (TLUD) gasifier with retort heating. The resulting biochars were characterized using BET, SEM, FTIR, TGA, and EDX analyses. Results showed yields of 72%, 69.4%, and 66.77% for FPD, LPD, and CPD, with BET surface areas of 542.265 m²/g, 450.023 m²/g, and 371.958 m²/g for CPD, FPD, and LPD. The biochars exhibited mesoporous structures with well-developed interconnected pores and diverse functional groups, including hydroxyl, carboxyl, and aromatic moieties. Elemental analysis revealed carbon and sodium as predominant components with minor mineral inclusions. These results demonstrate that pre-devolatilization improves the physicochemical quality of pod-derived biochars and supports their potential application in adsorption, catalysis, and soil amendment within circular bioeconomy frameworks.

• اسم الناشر: Springer
• مدينة النشر: s
• رقم المجلد: 19
• رقم الانشاء: 3
• مجلة/صحيفة: BioEnergy Research
• الصفحات: 10934-9