Production of Zeolite Sorbents from Burning and Co-burning Biomass with Coal Michał Łach, Agnieszka Grela, Tomasz Bajda, Dariusz Mierzwiński, Norbert Komar and Janusz Mikuła E3S Web Conf., 44 (2018) 00097 Published online: 03 July 2018 DOI: 10.1051/e3sconf/20184400097