Reaction kinetics of levulinic acid preparation from cellulose using sulfonated activated carbonDidi Dwi Anggoro, Istadi, Setia Budi Sasongko, Luqman Buchori, Ardhito Dwi Maulana, Irfan Hakim and Brilliant Umara Le MondeE3S Web Conf., 655 (2025) 01014DOI: https://doi.org/10.1051/e3sconf/202565501014