Techno-economic assessment and multi-objective optimization of CO2 hydrogenation via geothermal energy storage using synthetic natural gas, refrigeration, and freshwater production
Year: 2024
Type: article
Abstract: This study addresses the challenge of sustainable, multi-generational energy production by introducing an innovative geothermal-powered system for simultaneous methane, electricity, cooling, and freshwater generation. The configuration integrates a flash-binary geothermal power setup with an Organic Rankine Cycle, dual-effect absorption cooling, multi-stage flash desalination, and a solid oxide electrolyzer cell (SOEC) linked to a Sabatier reactor for CO2 hydrogenation. Financial analysis reveals annual revenue of $63.6 million, with operating expenses of $54.8 million and labor costs of $5.81 million, leading to a 7.3-year return on investment period. Optimized SOEC operation, including higher working temperatures, reduces voltage losses, improving energy efficiency.
Authors: Tao Hai, Abdullah Ali Seger, A S El-Shafay, Diwakar Agarwal, Ahmed Jassim Al-Yasiri, Husam Rajab, Moustafa S Darweesh, Lioua Kolsi, Chemseddine Maatki, Narinderjit Singh Sawaran Singh
Institutions: INTI International University, Ajman University, Nanchang Institute of Science & Technology, Qiannan Normal College For Nationalities, University of Warith Al-Anbiyaa, Prince Sattam Bin Abdulaziz University, GLA University, University of Kufa, Najran University, Northern Border University, University of Ha'il, Imam Mohammad ibn Saud Islamic University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,030
Award: G2262765560
OpenAlex ID: W4407428888