Syngas upgrading and tar mitigation from microalgal residues: Pelletization–torrefaction pretreatment and chemical looping gasification

Key Points

• Syngas upgrading significantly improves overall efficiency, enhancing energy recovery from microalgal residues.
• Tar mitigation achieved reductions of up to 35%, leading to cleaner syngas production.
• Assessment using chemical looping gasification and torrefaction pretreatment demonstrates effective syngas yields.
• Findings support microalgal residues as a sustainable resource for energy production, highlighting the need for further optimization.