Research has been made on bioethanol from an empty palm fruit bunch regarding the optimization of the delignification process using ozone. The lignocellulose content found in EPFB is cellulose, hemicellulose, and lignin respectively 47%, 22%, and 18%. The first process is delignification using ozone with a variation of time 0 -100 minutes with no acid addition and acid addition using HCl. After…