Role of CO2 geological storage in China's pledge to carbon peak by 2030 and carbon neutrality by 2060

Zhong, Zhiqi; Chen, Yongqiang; Fu, Meiyan; Li, Minzhen; Yang, Kaishuo; Zeng, Lingping; Ji, Liang; Ma, Rupeng; Xie, Quan

doi:10.1016/j.energy.2023.127165

Cited by 37 publications

(4 citation statements)

References 54 publications

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“…China has set low-carbon development targets to reach a peak in carbon emissions by 2030 and achieve carbon neutrality by 2060 [1,2]. The construction sector accounts for around 38% of the global carbon emissions [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Research on the Optimisation of Dual-Heat-Source Heating Systems in Nearly Zero-Energy Buildings

Hou,

Xu,

Zhang

et al. 2024

Sustainability

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A nearly zero-energy building is characterised by its low energy demand and enhanced thermal insulation, with great potential to integrate renewable energy systems to satisfy various demands and improve energy efficiency. Solar energy is a primary renewable energy resource that can be harnessed in different ways to provide electricity, heating, and cooling in building applications. In this study, a solar–ground-source heat pump system was designed and established in a nearly zero-energy building. The system’s performance was presented, and its control strategy was optimised. To evaluate and assess the operation of the solar energy system, an experimental setup was built, and the experiment was divided into two periods, taking into account the weather conditions. In the first experimental period, different parameters of the heating system were tested and evaluated. In this regard, the variation trends of the heat pump unit’s coefficient of performance, the system coefficient of performance, the collector start-up temperature difference, and the heat pump setting temperature were analysed under different parameter combinations. On this basis, the optimal operating parameters were identified for different heating periods. In the second period, the optimal operating parameters identified were used to carry out heating experiments. The results highlighted that the adoption of the preferred operating parameters increases the percentage of direct solar energy supply by 2.0%. Additionally, the system coefficient of performance increases by 8.9%, the unit coefficient of performance increases by 6.7%, the carbon emissions are reduced by 4.18 tonnes, the SO2 emissions are reduced by 0.143 tonnes, and the dust emissions are reduced by 0.1 tonnes. The findings of this study can provide useful data and a guiding reference for optimising and promoting the implementation of renewable-energy-driven heating systems for nearly zero-energy buildings in severe cold regions.

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Section: Introductionmentioning

confidence: 99%

Research on the Optimisation of Dual-Heat-Source Heating Systems in Nearly Zero-Energy Buildings

Hou,

Xu,

Zhang

et al. 2024

Sustainability

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“…Underground CO 2 storage is thus put forward to mitigate the anthropogenic greenhouse gas emissions. CO 2 captured from direct air capture or large point source emitters (e.g., coal power plants) is injected into underground reservoirs for permanent storage (Chen et al, 2021(Chen et al, , 2023Zhong et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Petrophysical recipe for in-situ CO2 mineralization in basalt rocks

Chen,

Seyyedi,

Clennell

2024

Adv. Geo-Energy Res.

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In-situ carbon dioxide mineralization in basalt rocks has been identified as a scalable, fast, safe, permanent, and cost-effective method to offset the anthropogenic carbon dioxide emissions. In-situ carbon dioxide mineralization refers to underground carbon dioxide transformation to carbonate minerals in basalt reservoirs. Although current field applications achieved fast in-situ carbon dioxide mineralization, limited petrophysical criteria have been proposed to screen a potential site to implement in-situ carbon dioxide mineralization. To fill this knowledge gap, geochemical modellings were performed to find an optimal petrophysical recipe, including pressure, temperature, pH, and mineral composition, to conduct in-situ carbon dioxide mineralization. The geochemical modellings showed that increasing pressure was favourable to increase water uptake of carbon dioxide, host rock dissolution, and in-situ carbon dioxide mineralization. However, a higher temperature depressed the in-situ carbon dioxide mineralization. Furthermore, the in-situ carbon dioxide mineralization was unravelled to be heavily pH dependent. Most magnesite precipitated in pH range from 9 to 11. Moreover, the forsterite was identified as the major contributing minerals while anorthite, fayalite, and diopside played a minor role in the in-situ carbon dioxide mineralization. This investigation provided a general protocol to screen the optimal petrophysical conditions for in-situ carbon dioxide mineralization.

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“…This process has resulted in noticeable carbon loss and has had a significant negative impact on the stability of China's ecosystems 4,6 . As the world's largest carbon emitter 7 , China has set an ambitious goal to peak its carbon emissions by 2030 and achieve carbon neutrality by 2060 8,9 . Therefore, exploring the response of terrestrial ecosystem CS to changes in land use types and analyzing the deep-seated driving factors affecting spatial heterogeneity are of paramount importance.…”

Section: Introductionmentioning

confidence: 99%

Response of carbon storage to land use change and Multi-Scenario predictions in Zunyi, China

Liu,

Mei,

Yue

et al. 2024

Preprint

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Evaluating and predicting how carbon storage (CS) responds to land use change can optimize future spatial layouts and coordinate the relationship between land use and ecosystem services. This study aimed to explore the spatiotemporal evolution of CS in Zunyi from 2000 to 2020, investigate the driving factors of CS, and predict spatiotemporal changes under multiple scenarios in 2030. Woodland (> 62%) and farmland (> 30%) are the main land use types in Zunyi. The land use changes included decreases in farmland (-0.92%) and grassland (-0.76%) and an increase in construction land (+ 0.92%). In 2000, 2010, and 2020, CS in Zunyi was 658.77×10^6 t, 661.44×10^6 t, and 658.35×10^6 t, respectively, initially increasing then decreasing. Woodland, farmland and grassland conversions to construction land and water were primarily responsible for CS loss. The NDVI is the main driving factor influencing the spatial pattern of CS (q > 10%). Furthermore, the impacts of the human footprint index and population density are increasing. In 2030, the CS in Zunyi is projected to decrease under the NDS, ECS and CDS scenarios. Under the ECS, CS is estimated to be 656.67×10^6 t, with the smallest decrease (-0.26%); moreover, this scenario effectively alleviates the decreases in farmland and woodland.

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Role of CO2 geological storage in China's pledge to carbon peak by 2030 and carbon neutrality by 2060

Cited by 37 publications

References 54 publications

Research on the Optimisation of Dual-Heat-Source Heating Systems in Nearly Zero-Energy Buildings

Research on the Optimisation of Dual-Heat-Source Heating Systems in Nearly Zero-Energy Buildings

Petrophysical recipe for in-situ CO2 mineralization in basalt rocks

Response of carbon storage to land use change and Multi-Scenario predictions in Zunyi, China

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