Rambhatla, et al (2025) BiomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More for biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More production: Study of kinetics parameters and effect of temperature on biochar yield and its physicochemical properties. Results in Engineering. https://doi.org/10.1016/j.rineng.2024.103679

Biochar, a carbon-rich material derived from biomass through pyrolysis, offers promising applications in soil improvement, pollutant removal, and carbon sequestration. A recent study analyzed the effects of pyrolysis temperature on biochar yield and its properties, utilizing mixed wood sawdust (MWS) as feedstockFeedstock refers to the raw organic material used to produce biochar. This can include a wide range of materials, such as wood chips, agricultural residues, and animal manure. More.

The study employed a semi-batch pyrolysis reactor at varying temperatures (400°C, 600°C, and 900°C). Key findings indicated that higher temperatures reduced biochar yield due to increased volatilization but enhanced carbon content and stability. For instance, biochar produced at 900°C exhibited higher carbon content (76%) and calorific value (36.97 MJ/kg), making it suitable for carbon-based applications. Conversely, biochar derived at 400°C showed potential for soil amendmentA soil amendment is any material added to the soil to enhance its physical or chemical properties, improving its suitability for plant growth. Biochar is considered a soil amendment as it can improve soil structure, water retention, nutrient availability, and microbial activity.   More and fertilizer applications due to higher yield and functional group retention.

The kinetic analysis used models like Kissinger-Akahira-Sunose (KAS) and Distributed Activation Energy Model (DAEM), revealing that the pyrolysis process is complex and multi-step. The surface area and water-holding capacity of biochar were inversely proportional to the pyrolysis temperature, with lower temperatures yielding biochar with better porosityPorosity of biochar is a key factor in its effectiveness as a soil amendment and its ability to retain water and nutrients. Biochar’s porosity is influenced by feedstock type and pyrolysis temperature, and it plays a crucial role in microbial activity and overall soil health. Biochar More and hydrophilicity.

While these findings underscore the importance of optimizing pyrolysis conditionsThe conditions under which pyrolysis takes place, such as temperature, heating rate, and residence time, can significantly affect the properties of the biochar produced.   More to tailor biochar for specific uses, the study also highlights the need for further research. Exploring diverse biomass feedstocks, varying operational parameters, and integrating life cycle assessments can enhance the scalability and sustainability of biochar production.

This research emphasizes the versatility of biochar as a sustainable solution for energy, agriculture, and environmental management.