Catalytic Upgrading of Plastic Waste of Electric and Electronic Equipment (WEEE) Pyrolysis Vapors over Si–Al Ash Pellets in a Two-Stage Reactor oleh Augusto Fernando de Freitas Costa, Caio Campos Ferreira, Simone Patrícia Aranha da Paz, Marcelo Costa Santos, Luiz Gabriel Santos Moreira, Neyson Martins Mendonça, Fernanda Paula da Costa Assunção, Ana Carolina Gomes de Albuquerque de Freitas, Roseane Maria Ribeiro Costa, Isaque Wilkson de Sousa Brandão, Carlos Emmerson Ferreira da Costa, Sílvio Alex Pereira da Mota, Douglas Alberto Rocha de Castro, Sergio Duvoisin, Luiz Eduardo Pizarro Borges, Nélio Teixeira Machado, Lucas Pinto Bernar