Combining renewable sources towards negative carbon emission hydrogen |
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| Affiliation: | 1. Vocational School, Department of Electric and Energy, A?r? ?brahim Çeçen University, A?r?-Turkey;2. Kaz?m Karabekir Education Faculty, Department of Science Education, Atatürk University, Erzurum-Turkey;3. H?n?s Vocational School, Department of Medical Services and Techniques, Atatürk University, Erzurum-Turkey;4. Department of Physics, Art & Science Faculty, Erzincan Binali Y?ld?r?m University, Erzincan-Turkey;5. Department of Electrical and Electronics Engineering, Faculty of Engineering, Atatürk University, Erzurum-Turkey;6. Department of Physics, Faculty of Science, Atatürk University, Erzurum-Turkey;1. State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004, PR China;2. Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang 332005, PR China;1. School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, Liaoning, China;2. Graduate School, Liaoning Petrochemical University, Fushun 113001, Liaoning, China;3. Shanxi Normal University, Taiyuan 030000, Shanxi, China;1. College of Materials Science and Engineering, Sichuan University, Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, PR China;2. Collaborative Innovation Center of Sustainable Energy Materials, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, Nanning, 530004, PR China;1. Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy;2. Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, Via G. Campi 213/A, 41125 Modena, Italy;3. Dipartimento di Ingegneria “Enzo Ferrari”, Università di Modena e Reggio Emilia, Via Vivarelli 10, 41125 Modena, Italy;4. CNR - Istituto Nanoscienze - Centro S3, Via Campi 213/A, 41125 Modena, Italy;5. Centro H2–MORE, Università di Modena e Reggio Emilia, 41125 Modena, Italy |
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| Abstract: | Multi-energy systems that combine different energy sources and carriers to improve the overall technical, economic, and environmental performance can boost the energy transition. In this paper we posit an innovative multi-energy system for green hydrogen production that achieves negative carbon emissions by combining bio-fuel membrane-integrated steam reforming and renewable electricity electrolysis. The system produces green hydrogen and carbon dioxide, both at high purity. We use thermo-chemical models to determine the system performance and optimal working parameters. Specifically, we focus on its ability to achieve negative carbon emissions.The results show that in optimal operating conditions the system can capture up to 14.1 g of CO2 per MJ of stored hydrogen and achieves up to 70% storage efficiency. Therefore, we prove that a multi-energy system may reach the same efficiency of an average electrolyzer while implementing carbon capture. In the same optimal operating conditions the system converts 7.8 kg of biogas in 1 kg of hydrogen using 3.2 kg of oxygen coming from the production of 6.4 kg of hydrogen through the electrolyzer. With such ratios we estimate that the conversion of all the biogas produced in Europe with our system, could result in the installation of additional dedicated 800 GWp - 1280 GWp of photovoltaic power, or of 266 GWp - 532 GWp of wind power, without affecting the distribution grid and covering yearly the 45% of the worldwide hydrogen demand while removing from the atmosphere more than 2% of the European carbon dioxide emissions. |
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| Keywords: | Green hydrogen Negative emission technology Bio-fuel Oxy-combustion Electrolysis Membrane-integrated steam reforming |
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