Another method used to achieve the same goal is that of anaerobic digestion, which is a biological process that happens naturally when bacteria breaks down organic matter in environments with little or no oxygen. Pound et al. used anaerobic digestion process to produce biogas from a mixture of cattle slurry and a different ratio of pressed sugar-cane stalk. Another anaerobic digestion method was used by Momoh et al. with different materials such as: cow dung, waste paper, and water hyacinth. Another study was carried out by Basri and et al. who examined the effect of the organic loading rate (OLR) on the production of biogas from palm oil mill effluent. To our knowledge, no one has used date palm seeds as a raw material in pyrolysis by using microwave plasma gasification technology to produce syngas.