Marco J. Castaldi

Marco J. Castaldi is a Professor and Department Chair at the City College of New York (CCNY), CUNY, affiliated with the Chemical Engineering and Earth System Science and Environmental Engineering departments. His research spans waste-to-energy technologies, catalysis, and sustainable energy systems.

• Primary focus: Gasification, pyrolysis, and reforming reactions for syngas/hydrogen production
• Secondary focus: Waste materials valorization, including MSW, plastics, and WTE ash
• Technical expertise: Computational fluid dynamics (CFD), catalyst design, and thermal analysis

Recent publications (2024-2025) examine topics like:

• Gasification of municipal solid waste with gypsum waste
• Lithium silicates for steam methane reforming
• Metal recovery from WTE ash under reactive conditions
• Landfill gas collection efficiency metrics
• Impact of spent FCC catalysts in polymer pyrolysis
• Scale effects in gas hydrate reproduction

His work emphasizes environmental impact reduction, energy recovery optimization, and catalyst performance improvement for both industrial and sustainability contexts.