Three-pipeline gas grid: A new concept for power-to-gas associated with complete carbon capture and utilization

Costamagna, Paola

doi:10.1016/j.enconman.2020.113739

Cited by 14 publications

(3 citation statements)

References 45 publications

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“…Indeed, both electrolysis products can be potentially utilized in a closed loop where the pure oxygen stream is not vented out or sold but is used directly in an oxygen (or oxygen-enriched) burner for electricity generation or heat production via oxy-fuel combustion (vide supra). The selected fuel can essentially be a stream of synthetic natural gas produced catalytically on-site by H 2 provided from the electrolysis and the post-combustion CO 2 that is available after condensation of water and purification [181][182][183] or even solid biomass [184,185]. Additionally, since H 2 O is a major product in any CO 2 hydrogenation reaction and provided that CO 2 is properly purified before entering the reactor, the collected water can be considered as a direct input to the electrolyzers without the need for pretreatment, further highlighting the cyclic character of the process [185,186].…”

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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The increasing trend in global energy demand has led to an extensive use of fossil fuels and subsequently in a marked increase in atmospheric CO2 content, which is the main culprit for the greenhouse effect. In order to successfully reverse this trend, many schemes for CO2 mitigation have been proposed, taking into consideration that large-scale decarbonization is still infeasible. At the same time, the projected increase in the share of variable renewables in the future energy mix will necessitate large-scale curtailment of excess energy. Collectively, the above crucial problems can be addressed by the general scheme of CO2 hydrogenation. This refers to the conversion of both captured CO2 and green H2 produced by RES-powered water electrolysis for the production of added-value chemicals and fuels, which are a great alternative to CO2 sequestration and the use of green H2 as a standalone fuel. Indeed, direct utilization of both CO2 and H2 via CO2 hydrogenation offers, on the one hand, the advantage of CO2 valorization instead of its permanent storage, and the direct transformation of otherwise curtailed excess electricity to stable and reliable carriers such as methane and methanol on the other, thereby bypassing the inherent complexities associated with the transformation towards a H2-based economy. In light of the above, herein an overview of the two main CO2 abatement schemes, Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU), is firstly presented, focusing on the route of CO2 hydrogenation by green electrolytic hydrogen. Next, the integration of large-scale RES-based H2 production with CO2 capture units on-site industrial point sources for the production of added-value chemicals and energy carriers is contextualized and highlighted. In this regard, a specific reference is made to the so-called Power-to-X schemes, exemplified by the production of synthetic natural gas via the Power-to-Gas route. Lastly, several outlooks towards the future of CO2 hydrogenation are presented.

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Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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“…The produced hydrogen is combined with CO 2 captured by CCS as a raw production material to produce methane. The thermal power plants coupling with CCS and P2G can realize the recycling of system resources while creating natural gas resources, reducing carbon dioxide emissions, and promoting clean energy accommodation [17,18]. With the large-scale new energy fed into the grid and the reduction of source-side flexibility resources, energy storage systems (ESS), electric vehicles (EV), and V2G have gradually become effective means to enhance the flexibility of IES [19].…”

Section: Introduction 1motivationsmentioning

confidence: 99%

Stochastic Optimization Model of Capacity Configuration for Integrated Energy Production System Considering Source-Load Uncertainty

Miao,

Yuan,

Huang

et al. 2023

Sustainability

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China’s carbon neutrality strategy has expedited a transition towards greener and lower-carbon integrated energy systems. Faced with the problem that the central position of thermal power cannot be transformed quickly, utilizing traditional thermal power units in a low-carbon and efficient manner is the premise to guarantee green energy development. This study focuses on the integrated energy production system (IEPS) and a stochastic optimization model for capacity configuration that integrates carbon capture storage and power-to-gas while considering source-load uncertainty. Firstly, carbon capture storage and power-to-gas technologies are introduced, and the architecture and models of the IEPS are established. The carbon and hydrogen storage equipment configuration enhances the system’s flexibility. Also, source-load uncertainty is considered, and a deterministic transformation is applied using the simultaneous backward reduction algorithm combined with K-means clustering. The paper simulates the optimal capacity configuration of the IEPS in a park energy system in Suzhou, China. Furthermore, the research performs a sensitivity analysis on coal, natural gas, and carbon tax prices. Case studies verified that IEPS can realize the recycling of electricity, gas, hydrogen, and carbon, with remarkable characteristics of low-carbon, flexibility, and economical. Stochastic optimized capacity allocation results considering source-load uncertainty are more realistic. Sensitivity intervals for energy prices can reference pricing mechanisms in energy markets. This study can provide ideas for the transition of China’s energy structure and offer directions to the low-carbon sustainable development of the energy system.

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“…The results of the case study illustrate the benefits of P2G to the operation of low‐carbon, economic and environmentally improved integrated systems. P. Costamagna et al's 25 first principle model of the alkaline electrolytic cell and the cooled isothermal packed‐bed Sabatier reactor was established to evaluate the function of the power–gas system. Taking into account the advantages provided in carbon capture and utilization, the feasibility of P2G was evaluated.…”

Section: Introductionmentioning

confidence: 99%

Internal benefit optimization model of gas‐thermal power virtual power plant under china's carbon neutral target

Guo

Mao

Yin

2022

Energy Science & Engineering

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Three-pipeline gas grid: A new concept for power-to-gas associated with complete carbon capture and utilization

Cited by 14 publications

References 45 publications

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Stochastic Optimization Model of Capacity Configuration for Integrated Energy Production System Considering Source-Load Uncertainty

Internal benefit optimization model of gas‐thermal power virtual power plant under china's carbon neutral target

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