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Reduction potential of the energy penalty for CO capture in CCS

《能源前沿（英文）》 2023年第17卷第3期页码 390-399 doi: 10.1007/s11708-023-0864-x

摘要： CO₂ capture and storage (CCS) has been acknowledged as an essential part of a portfolio of technologies that are required to achieve cost-effective long-term CO₂ mitigation. However, the development progress of CCS technologies is far behind the targets set by roadmaps, and engineering practices do not lead to commercial deployment. One of the crucial reasons for this delay lies in the unaffordable penalty caused by CO₂ capture, even though the technology has been commonly recognized as achievable. From the aspects of separation and capture technology innovation, the potential and promising direction for solving this problem were analyzed, and correspondingly, the possible path for deployment of CCS in China was discussed. Under the carbon neutral target recently proposed by the Chinese government, the role of CCS and the key milestones for deployment were indicated.

关键词： CO₂ capture and storage (CCS) CO₂ separation energy penalty

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离岸碳捕集利用与封存技术体系研究

李姜辉,李鹏春,李彦尊,童峰

《中国工程科学》 2023年第25卷第2期页码 173-186 doi: 10.15302/J-SSCAE-2023.07.015

摘要：

离岸碳捕集、利用与封存（CCUS）技术是沿海国家或地区通过工程方式为实现CO₂减排而发展起来的解决方案与技术体系；相对于陆上离岸CCUS技术指从沿海大型或近海碳排放源捕集CO₂，加压并运输至离岸封存平台后注入海底地质储层中，实现CO₂与大气永久隔离或利用其生产价值产品的过程。本文概要回顾了全球及我国离岸CCUS技术的发展需求与产业现状，分析了发展离岸CCUS的技术性和社会性价值；梳理总结了代表性的离岸CCUS技术发展路线及其态势，如CO₂工厂捕集、CO₂管道运输、CO₂海底咸水层封存与驱油利用、CO₂化学利用以及其他技术架构。

关键词：离岸碳捕集、利用与封存；CO2捕集；CO2运输；CO2封存；CO2利用；沿海地区；近海沉积盆地

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Theoretical and experimental study on the fluidity performance of hard-to-fluidize carbon nanotubes-based CO2capture sorbents

《化学科学与工程前沿（英文）》 2022年第16卷第10期页码 1460-1475 doi: 10.1007/s11705-022-2159-x

摘要： Carbon nanotubes-based materials have been identified as promising sorbents for efficient CO₂ capture in fluidized beds, suffering from insufficient contact with CO₂ for the high-level CO₂ capture capacity. This study focuses on promoting the fluidizability of hard-to-fluidize pure and synthesized silica-coated amine-functionalized carbon nanotubes. The novel synthesized sorbent presents a superior sorption capacity of about 25 times higher than pure carbon nanotubes during 5 consecutive adsorption/regeneration cycles. The low-cost fluidizable-SiO₂ nanoparticles are used as assistant material to improve the fluidity of carbon nanotubes-based sorbents. Results reveal that a minimum amount of 7.5 and 5 wt% SiO₂ nanoparticles are required to achieve an agglomerate particulate fluidization behavior for pure and synthesized carbon nanotubes, respectively. Pure carbon nanotubes + 7.5 wt% SiO₂ and synthesized carbon nanotubes + 5 wt% SiO₂ indicates an agglomerate particulate fluidization characteristic, including the high-level bed expansion ratio, low minimum fluidization velocity (1.5 and 1.6 cm·s^–1), high Richardson−Zakin index (5.2 and 5.3 > 5), and low Π value (83.2 and 84.8 < 100, respectively). Chemical modification of carbon nanotubes causes not only enhanced CO ₂ uptake capacity but also decreases the required amount of silica additive to reach a homogeneous fluidization behavior for synthesized carbon nanotubes sorbent.

关键词： CO₂ capture CNT-based sorbents fluidization SiO₂ nanoparticles fluidized bed reactors

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Frontier science and challenges on offshore carbon storage

《环境科学与工程前沿（英文）》 2023年第17卷第7期 doi: 10.1007/s11783-023-1680-6

摘要：

● The main direct seal up carbon options and challenges are reviewed.

关键词： Offshore carbon storage Direct CO₂ injection CO₂-CH₄ replacement CO₂-EOR CCS hubs CO₂ transport

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Encapsulation of 2-amino-2-methyl-1-propanol with tetraethyl orthosilicate for CO2 capture

Sidra Rama, Yan Zhang, Fideline Tchuenbou-Magaia, Yulong Ding, Yongliang Li

《化学科学与工程前沿（英文）》 2019年第13卷第4期页码 672-683 doi: 10.1007/s11705-019-1856-6

摘要： Carbon capture is widely recognised as an essential strategy to meet global goals for climate protection. Although various CO capture technologies including absorption, adsorption and membrane exist, they are not yet mature for post-combustion power plants mainly due to high energy penalty. Hence researchers are concentrating on developing non-aqueous solvents like ionic liquids, CO -binding organic liquids, nanoparticle hybrid materials and microencapsulated sorbents to minimize the energy consumption for carbon capture. This research aims to develop a novel and efficient approach by encapsulating sorbents to capture CO in a cold environment. The conventional emulsion technique was selected for the microcapsule formulation by using 2-amino-2-methyl-1-propanol (AMP) as the core sorbent and silicon dioxide as the shell. This paper reports the findings on the formulated microcapsules including key formulation parameters, microstructure, size distribution and thermal cycling stability. Furthermore, the effects of microcapsule quality and absorption temperature on the CO loading capacity of the microcapsules were investigated using a self-developed pressure decay method. The preliminary results have shown that the AMP microcapsules are promising to replace conventional sorbents.

关键词： carbon capture microencapsulated sorbents emulsion technique low temperature adsorption and absorption

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温室气体提高采收率的资源化利用及地下埋存

沈平平,江怀友

《中国工程科学》 2009年第11卷第5期页码 54-59

摘要：建立适合中国国情的CO₂高效利用和埋存体系；实现CO₂减排的社会效益和CO₂高效利用的经济效益；发展适合中国国情的CO₂埋存地下理论、多相多组分相态理论、多相多组分非线性渗流理论和CO₂捕集与储运理论。通过上述基础研究，形成具有自主知识产权的CO₂地质埋存和高效利用的综合技术，使中国CO₂安全埋存—高效利用研究处于国际水平。

关键词：温室气体资源化利用 CO2地下埋存提高采收率

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An adaptive policy-based framework for China’s Carbon Capture and Storage development

Xiaoliang YANG, Wolfgang HEIDUG, Douglas COOKE

《工程管理前沿（英文）》 2019年第6卷第1期页码 78-86 doi: 10.1007/s42524-019-0003-x

摘要：

China’s political leadership has taken an increasingly public and proactive stance on climate change since 2014. This stance includes making a commitment that Chinese carbon dioxide (CO₂) emissions will peak around 2030 and enacting measures through the 13th Five-Year Plan to support energy efficiency, clean energy technology, and carbon management. Chinese policymakers consider carbon capture and storage (CCS) a critical bridging technology to help accelerate the decarbonization of its economy. This paper reviews and analyzes Chinese CCS support policies from the perspective of an adaptive policymaking framework, recognizing uncertainty as an inherent element of the policymaking process and drawing general lessons for responding to changing circumstances. Notably, the political support for CCS in China remains fragmented with uncoordinated government leadership, undecided industry players, and even with opposing voices from some leading scientists. There is scope for expanding the framework to provide more granularity, in particular relating to the development of a CCS infrastructure and the development of storage-focused CO2-EOR. Overall, given the role CCS can play to decarbonize China’s power and other industrial sectors, a commitment to CCS from top policymakers and major stakeholders is needed.

关键词： CCS policy climate change China

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碳捕集利用与封存中的金属腐蚀问题研究：进展与挑战

向勇 ,原玉 ,周佩 ,刘广胜 ,吕伟 ,李明星 ,张春霞 ,周庆军 ,赵雪会 ,闫伟

《中国工程科学》 2023年第25卷第3期页码 197-208 doi: 10.15302/J-SSCAE-2023.07.026

摘要：分析了可能存在的金属腐蚀类型及其主要影响因素，并对其带来的挑战进行了梳理，得出了以下主要结论：对于有机胺捕集系统，吸收剂降解机理及降解产物对腐蚀过程的影响较为复杂，部分降解产物对金属腐蚀有抑制作用；密相CO2输送管道的内腐蚀问题不容忽视，控制水分含量是控制该腐蚀问题的关键；CO2驱油利用与封存系统井筒管材在超高CO2分压、碳源杂质、高矿化度地层水、微生物和应力等多因素的长周期耦合作用下，出现腐蚀失效导致CO2

关键词：碳捕集、利用与封存；碳源杂质；腐蚀环境特点；腐蚀影响因素；超临界CO2

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地热能储存与CO₂封存和利用的一体化框架 Article

刘月亮, 胡婷, 芮振华, 张政, 都凯, 杨涛, Birol Dindoruk, Erling Halfdan Stenby, Farshid Torabi, Andrey Afanasyevc

《工程（英文）》 2023年第30卷第11期页码 121-130 doi: 10.1016/j.eng.2022.12.010

摘要：此外，利用CO₂羽流进行地热储能可通过将CO₂储存于地质体中来缓解温室效应。然后，将产生的高能CO₂引入到目标油藏中，用于CO₂利用和地热能储存。最后，将CO₂有效地封存在地质油藏体中。结果表明，随着高能CO₂的注入，整个目标油藏的平均温度大幅度提高。在地热能的协助下，CO₂的地质利用率更高，从而使驱油效率提高了10.1%。根据对模拟CO₂场地的封存潜力的评估，CO₂注入110年后，地质体的利用率将高达91.2%，场地内CO₂的最终注入量将高达9.529 经过1000年封存，超临界相在CO₂封存中占主导地位，其次是液相，然后是矿化相。此外，由于残余油的存在，用于溶解捕获的CO₂封存量显著增加。

关键词：地热能储存 CO₂封存碳中和大规模 CO₂利用

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CCS，CCUS，CCRS，CMC系统集成

金涌,朱兵,胡山鹰,洪丽云

《中国工程科学》 2010年第12卷第8期页码 49-55

摘要：近年来提出的碳捕集—利用—封存和碳捕集—再利用—封存是更为积极的CO2减排应对策略。

关键词：低碳经济碳捕集—封存碳捕集—利用—封存碳捕集—再利用—封存碳的全程管理

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Carbon capture for decarbonisation of energy-intensive industries: a comparative review of techno-economic

《化学科学与工程前沿（英文）》 2022年第16卷第9期页码 1291-1317 doi: 10.1007/s11705-022-2151-5

摘要： Carbon capture and storage will play a crucial role in industrial decarbonisation. However, the current literature presents a large variability in the techno-economic feasibility of CO₂ capture technologies. Consequently, reliable pathways for carbon capture deployment in energy-intensive industries are still missing. This work provides a comprehensive review of the state-of-the-art CO₂ capture technologies for decarbonisation of the iron and steel, cement, petroleum refining, and pulp and paper industries. Amine scrubbing was shown to be the least feasible option, resulting in the average avoided CO₂ cost of between 62.7

€·t CO 2 − 1

for the pulp and paper and 104.6

€·t CO 2 − 1

for the iron and steel industry. Its average equivalent energy requirement varied between 2.7 (iron and steel) and 5.1

MJ th ⋅ kg CO 2 − 1

(cement). Retrofits of emerging calcium looping were shown to improve the overall viability of CO₂ capture for industrial decarbonisation. Calcium looping was shown to result in the average avoided CO₂ cost of between 32.7 (iron and steel) and 42.9

€·t CO 2 − 1

(cement). Its average equivalent energy requirement varied between 2.0 (iron and steel) and 3.7

MJ th ⋅ kg CO 2 − 1

(pulp and paper). Such performance demonstrated the superiority of calcium looping for industrial decarbonisation. Further work should focus on standardising the techno-economic assessment of technologies for industrial decarbonisation.

关键词： industrial CO₂ emissions CCS deployment carbonate looping net-zero industry carbon capture benchmarks

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Newly-modeled graphene-based ternary nanocomposite for the magnetophotocatalytic reduction of CO2 with

《化学科学与工程前沿（英文）》 2022年第16卷第10期页码 1438-1459 doi: 10.1007/s11705-022-2166-y

摘要： The development of CO₂ into hydrocarbon fuels has emerged as a green method that could help mitigate global warning. The novel structured photocatalyst is a promising material for use in a photocatalytic and magneto-electrochemical method that fosters the reduction of CO₂ by suppressing the recombination of electron−hole pairs and effectively transferring the electrons to the surface for the chemical reaction of CO₂ reduction. In our study, we have developed a novel-structured AgCuZnS₂–graphene–TiO₂ to analyze its catalytic activity toward the selective evolution of CO₂. The selectivity of each nanocomposite substantially enhanced the activity of the AgCuZnS₂–graphene–TiO₂ ternary nanocomposite due to the successful interaction, and the selectivity of the final product was improved to a value 3 times higher than that of the pure AgCuZnS₂ and 2 times higher than those of AgCuZnS₂–graphene and AgCuZnS₂–TiO₂ under ultra-violet (UV)-light (λ = 254 nm) irradiation in the photocatalytic process. The electrochemical CO₂ reduction test was also conducted to analyze the efficacy of the AgCuZnS₂–graphene–TiO₂ when used as a working electrode in laboratory electrochemical cells. The electrochemical process was conducted under different experimental conditions, such as various scan rates (mV·s^–1), under UV-light and with a 0.07 T magnetic-core. The evolution of CO₂ substantially improved under UV-light (λ = 254 nm) and with 0.07 T magnetic-core treatment; these improvements were attributed to the facts that the UV-light activated the electron-transfer pathway and the magnetic core controlled the pathway of electron-transmission/prevention to protect it from chaotic electron movement. Among all tested nanocomposites, AgCuZnS₂–graphene–TiO₂ absorbed the CO₂ most strongly and showed the best ability to transfer the electron to reduce the CO₂ to methanol. We believe that our newly-modeled ternary nanocomposite opens up new opportunities for the evolution of CO₂ to methanol through an electrochemical and photocatalytic process.

关键词： ternary nanocomposite photocatalytic electrochemical CO₂ reduction UV-light magnetic core

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A systemic review of hydrogen supply chain in energy transition

《能源前沿（英文）》 2023年第17卷第1期页码 102-122 doi: 10.1007/s11708-023-0861-0

摘要： Targeting the net-zero emission (NZE) by 2050, the hydrogen industry is drastically developing in recent years. However, the technologies of hydrogen upstream production, midstream transportation and storage, and downstream utilization are facing obstacles. In this paper, the development of hydrogen industry from the production, transportation and storage, and sustainable economic development perspectives were reviewed. The current challenges and future outlooks were summarized consequently. In the upstream, blue hydrogen is dominating the current hydrogen supply, and an implementation of carbon capture and sequestration (CCS) can raise its cost by 30%. To achieve an economic feasibility, green hydrogen needs to reduce its cost by 75% to approximately 2 /kg at the large scale. The research progress in the midterm sector is still in a preliminary stage, where experimental and theoretical investigations need to be conducted in addressing the impact of embrittlement, contamination, and flammability so that they could provide a solid support for material selection and large-scale feasibility studies. In the downstream utilization, blue hydrogen will be used in producing value-added chemicals in the short-term. Over the long-term, green hydrogen will dominate the market owing to its high energy intensity and zero carbon intensity which provides a promising option for energy storage. Technologies in the hydrogen industry require a comprehensive understanding of their economic and environmental benefits over the whole life cycle in supporting operators and policymakers.

关键词： hydrogen production hydrogen transportation and storage hydrogen economy carbon capture and sequestration (CCS) technology assessment

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Tuning porosity of coal-derived activated carbons for CO2 adsorption

《化学科学与工程前沿（英文）》 2022年第16卷第9期页码 1345-1354 doi: 10.1007/s11705-022-2155-1

摘要： A simple method was developed to tune the porosity of coal-derived activated carbons, which provided a model adsorbent system to investigate the volumetric CO₂ adsorption performance. Specifically, the method involved the variation of the activation temperature in a K₂CO₃ induced chemical activation process which could yield activated carbons with defined microporous (< 2 nm, including ultra-microporous < 1 nm) and meso-micro-porous structures. CO₂ adsorption isotherms revealed that the microporous activated carbon has the highest measured CO₂ adsorption capacity (6.0 mmol∙g^–1 at 0 °C and 4.1 mmol∙g^–1 at 25 °C), whilst ultra-microporous activated carbon with a high packing density exhibited the highest normalized capacity with respect to packing volume (1.8 mmol∙cm⁻³ at 0 °C and 1.3 mmol∙cm^–3 at 25 °C), which is significant. Both experimental correlation analysis and molecular dynamics simulation demonstrated that (i) volumetric CO₂ adsorption capacity is directly proportional to the ultra-micropore volume, and (ii) an increase in micropore sizes is beneficial to improve the volumetric capacity, but may lead a low CO₂ adsorption density and thus low pore space utilization efficiency. The adsorption experiments on the activated carbons established the criterion for designing CO₂ adsorbents with high volumetric adsorption capacity.

关键词： coal-derived activated carbons porosity CO₂ adsorption molecular dynamics

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Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

Solomon A. Aromada, Bjørn Kvamme

《化学科学与工程前沿（英文）》 2019年第13卷第3期页码 616-627 doi: 10.1007/s11705-019-1795-2

摘要： Evaluation of maximum content of water in natural gas before water condenses out at a given temperature and pressure is the initial step in hydrate risk analysis during pipeline transport of natural gas. The impacts of CO and H S in natural gas on the maximum mole-fractions of water that can be tolerated during pipeline transport without the risk of hydrate nucleation has been studied using our novel thermodynamic scheme. Troll gas from the North Sea is used as a reference case, it contains very negligible amount of CO and no H S. Varying mole-fractions of CO and H S were introduced into the Troll gas, and the effects these inorganic impurities on the water tolerance of the system were evaluated. It is observed that CO does not cause any distinguishable impact on water tolerance of the system, but H S does. Water tolerance decreases with increase in concentration of H S. The impact of ethane on the system was also investigated. The maximum mole-fraction of water permitted in the gas to ensure prevention of hydrate formation also decreases with increase in the concentration of C H like H S. H S has the most impact, it tolerates the least amount of water among the components studied.

关键词： hydrate hydrogen Sulphide CO₂ dew point pipeline