relation: https://khub.utp.edu.my/scholars/14564/ title: Heat integration modeling of hydrogen production from date seeds via steam gasification creator: Inayat, A. creator: Shahbaz, M. creator: Khan, Z. creator: Inayat, M. creator: Mofijur, M. creator: Ahmed, S.F. creator: Ghenai, C. creator: Ahmad, A.A. description: The purpose of the current study is to identify the potential of energy-efficient hydrogen (H2) production from date seeds as biomass via steam gasification process along with heat integration in Gulf countries. A reaction kinetics model has been established for steam gasification with in-situ carbon dioxide (CO2) capture of date seeds using MATLAB software. The kinetics of reactions involved in the gasification process was calculated using the optimization parameters fitting approach. The heat integration model has been developed via mixed integer nonlinear programming (MINLP) in MATLAB. In the parametric study, temperature and steam/biomass ratio considered their impact on syngas composition and energy recovery. Results showed that both variables have a strong positive effect on H2 production and depicted maximum production of 68 mol at a temperature of 750 °C with steam/biomass ratio of 1.2. Methane (CH4) and CO2 production were low in the product gas, which showed the activity of water gas shift reaction, methanation reaction, and carbonation reaction. Utilization of waste heat via process heat integration within the system reduced system's external heat load. More than 70 of energy recovered, which could be utilized for gasification and steam production. Energy analysis and process heat integration proved a prospective approach for energy-efficient and sustainable hydrogen production from date seeds. © 2021 Hydrogen Energy Publications LLC publisher: Elsevier Ltd date: 2021 type: Article type: PeerReviewed identifier: Inayat, A. and Shahbaz, M. and Khan, Z. and Inayat, M. and Mofijur, M. and Ahmed, S.F. and Ghenai, C. and Ahmad, A.A. (2021) Heat integration modeling of hydrogen production from date seeds via steam gasification. International Journal of Hydrogen Energy, 46 (59). pp. 30592-30605. ISSN 03603199 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102311361&doi=10.1016%2fj.ijhydene.2021.02.060&partnerID=40&md5=06743044404566ecc84472b5e5b3f2ab relation: 10.1016/j.ijhydene.2021.02.060 identifier: 10.1016/j.ijhydene.2021.02.060