Carbon Capture Science & Technology最新文献_第2页

Techno-economic and environmental optimization of structured-packing absorbers for amine-based post-combustion CO2 capture 胺基燃烧后CO2捕集结构填料的技术经济和环境优化

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2025-12-25 DOI: 10.1016/j.ccst.2025.100560

Md Sakib Hossain, Richard Barker, Timothy Cockerill, Harvey Thompson

Post combustion carbon capture and storage (CCS) using amine solvents is a mature and retrofittable technology where CO₂ absorber design remains a critical determinant of cost, energy demand, and environmental footprint. Conventional studies typically size absorbers within proprietary simulators or apply simplified surrogates that limit transparency while excluding case specific design and material related impacts. This work develops a physics based, multi-objective optimization framework for structured-packing amine-based CCS absorbers in natural gas combined cycle (NGCC) plants that balances equilibrium driven mass transfer, hydraulics, techno-economic assessment, and cradle-to-gate embodied global warming potential (GWP) considerations. Several commercially available structured packings are evaluated and vendor relevant absorber geometries, which are height, diameter, packing type, and volume are directly linked to costs, reboiler duty, capture efficiency, and embodied emissions. Baseline optimization for a 250 MW_e NGCC plant identifies knee-point optimum absorber designs achieving 95–97% capture at 40–52 million USD, 3.2–4.6 MJ/kmol_solvent reboiler duty, and 1300–1900 t CO₂e embodied GWP. Sensitivity analyses show that plant scaling fundamentally alters packing selection, preferring high surface area packings (Montz BSH-400) for 100 MW_e NGCC case. Meanwhile, at 750 MW_e, hydraulically open packings (Montz B1–250) dominate optimum solutions to limit flooding and column parallelization. Steel emissions intensity further alters optimization outcomes with recycled steel reducing embodied emissions by up to 70%. Overall, the study establishes CCS absorber design as a scale-sensitive, multi-objective problem, and shows that design choices have significant implications for material use, embodied emissions, and overall system sustainability. The findings highlight the need to integrate environmental performance alongside cost and capture efficiency in CCS decision-making for large-scale and sustainable deployment.

使用胺类溶剂的燃烧后碳捕集与封存（CCS）是一项成熟的可改造技术，其中二氧化碳吸收器的设计仍然是成本、能源需求和环境足迹的关键决定因素。传统的研究通常在专有的模拟器中确定吸收剂的大小，或者采用简化的替代品，这限制了透明度，同时排除了具体的设计和材料相关的影响。这项工作为天然气联合循环（NGCC）工厂的结构填料胺基CCS吸收器开发了一个基于物理的多目标优化框架，该框架可以平衡平衡驱动的传质、水力学、技术经济评估和从摇篮到大门的全球变暖潜能值（GWP）考虑因素。我们评估了几种市售的结构化填料和供应商相关的吸收器几何形状，包括高度、直径、填料类型和体积，这些都与成本、再锅炉负荷、捕获效率和排放直接相关。250mwe NGCC电厂的基线优化确定了膝点最佳吸收器设计，在4000 - 5200万美元、3.2-4.6 MJ/ kmolmolsolvent re沸器负荷和1300-1900 t CO2e隐含的GWP下，实现了95-97%的捕集。敏感性分析表明，工厂规模从根本上改变了填料选择，对于100兆瓦的NGCC情况，更倾向于高表面积填料（Montz BSH-400）。同时，在750mwe时，水力开孔填料（Montz B1-250）是限制注水和柱间平行化的最佳解决方案。钢铁排放强度进一步改变了优化结果，回收的钢铁减少了高达70%的隐含排放量。总体而言，该研究将CCS吸收器设计确立为一个规模敏感、多目标的问题，并表明设计选择对材料使用、隐含排放和整体系统可持续性具有重要影响。研究结果强调了在大规模和可持续部署的CCS决策中，需要将环境绩效与成本和捕获效率结合起来。

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引用次数: 0

Effects of metal-modified catalysts on the desorption performance of mixed amine solutions and machine learning prediction 金属改性催化剂对混合胺溶液解吸性能的影响及机器学习预测

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.ccst.2026.100575

Xunxuan Heng , Zhenzhen Zhang , Longhua Zhu , Li Yang , Shugang Xie , Zeyu Wang , Dongtai Han , Fang Liu , Kunlei Liu

The high energy penalty associated with solvent regeneration is still a major bottleneck in amine-based CO₂ capture. In this work, the effects of five solid acid catalysts on the desorption performance of a mixed-amine solvent were compared, and the HY catalyst with superior desorption behavior was selected and further modified with four transition metals (Co, Mn, Gr and Ce) to enhance its catalytic activity. The findings indicate that the CO₂ desorption capacity and maximum desorption rate of the Co-modified HY catalyst reach 48.96 mmol and 0.02211 mmol/s, corresponding to increases of 36.80% and 35.39% relative to the blank system, while the relative regenerative load decreases to 73.12% of the blank. In the later stage of desorption, the value of the desorption factor (DF) reaches 1.33 × 10^–6 mol³·kJ^-1·min^-1, which is 259.46% higher than that of the blank, and the catalyst also exhibits good cyclic stability with negligible impact on the absorption performance. Field Emission Scanning Electron Microscope (FESEM), Brunauer-Emmett-Teller (BET), X-ray Diffraction (XRD) and Fourier Transform infrared spectroscopy (FTIR) characterizations indicate that the catalyst does not alter the chemical composition of the absorbent. Furthermore, six machine-learning models were developed to predict the desorption behavior, among which the Spline-KRR model achieves an RMSE of only 0.00133, with R² and Pearson correlation coefficients of 0.992 and 0.998, respectively, demonstrating high fitting accuracy without obvious outliers and confirming the reliability of the model. Future efforts will continue optimizing this catalyst system, providing robust technological support for greenhouse gas reduction and climate change mitigation.

与溶剂再生相关的高能量损失仍然是胺基CO2捕获的主要瓶颈。本文比较了5种固体酸催化剂对混合胺溶剂解吸性能的影响，选择了解吸性能较好的HY催化剂，并用4种过渡金属（Co、Mn、Gr和Ce）对HY催化剂进行了进一步改性，以提高其催化活性。结果表明，共改性HY催化剂的CO2解吸能力和最大解吸速率分别达到48.96 mmol和0.02211 mmol/s，相对空白体系分别提高了36.80%和35.39%，相对再生负荷下降到空白体系的73.12%。在解吸后期，催化剂的解吸因子（DF）达到1.33 × 10-6 mol3·kk -1·min-1，比空白提高了259.46%，且催化剂具有良好的循环稳定性，对吸附性能的影响可以忽略不计。场发射扫描电镜（FESEM）、布鲁诺尔-埃米特-泰勒（BET）、x射线衍射（XRD）和傅里叶变换红外光谱（FTIR）表征表明，催化剂没有改变吸收剂的化学组成。建立了6个机器学习模型来预测脱附行为，其中样条- krr模型的RMSE仅为0.00133，R2和Pearson相关系数分别为0.992和0.998，拟合精度高，无明显异常值，证实了模型的可靠性。未来的努力将继续优化这一催化剂体系，为减少温室气体和减缓气候变化提供强有力的技术支持。

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引用次数: 0

AI-driven Carbon Capture and Storage (CCS): an analysis of emerging technologies for sustainable climate solutions 人工智能驱动的碳捕集与封存（CCS）：可持续气候解决方案新兴技术分析

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.ccst.2026.100576

Chaudhri Abdur Raheem, Syed Qasim Ali Shah, Unib Arshad Lodhi, Muhammad Fahim Khokhar

Climate change is driven by large greenhouse gas emissions, which have raised an alarm in efforts to reduce atmospheric carbon dioxide levels with CCS, drawing attention to decarbonization efforts. This review provides a comprehensive analysis of current Carbon Dioxide (CO₂) capture methods, including absorption, adsorption, and membrane separation and emerging Direct Air Capture (DAC), while addressing their limitations in cost, efficiency, and scalability. A key focus is the emerging role of Artificial Intelligence (AI) in accelerating CCS deployment. AI-driven techniques, particularly machine learning, are being applied to optimize capture processes, improve system performance, and facilitate the discovery of advanced materials. We synthesize evidence on supervised and unsupervised learning, reinforcement learning and generative models mapped to concrete CCS tasks: sorbent/solvent screening, soft sensing, emissions forecasting, digital-twin control, and storage integrity surveillance This review also highlights recent advancements at the intersection of AI and CCS, evaluates their potential for large-scale implementation, and discusses remaining technical and policy challenges. The findings underscore the strategic importance of integrating AI to enhance the effectiveness and scalability of CCS in support of global decarbonization goals.

气候变化是由大量温室气体排放驱动的，这给CCS减少大气二氧化碳水平的努力敲响了警钟，引起了人们对脱碳努力的关注。这篇综述全面分析了目前二氧化碳（CO2）捕获方法，包括吸收、吸附、膜分离和新兴的直接空气捕获（DAC），同时解决了它们在成本、效率和可扩展性方面的局限性。一个关键的焦点是人工智能（AI）在加速CCS部署方面的新兴作用。人工智能驱动的技术，特别是机器学习，正被应用于优化捕获过程，提高系统性能，并促进先进材料的发现。我们综合了有关监督学习和无监督学习、强化学习和生成模型的证据，并将其映射到具体的CCS任务：吸附剂/溶剂筛选、软测量、排放预测、数字孪生控制和存储完整性监测。本文还强调了人工智能和CCS交叉领域的最新进展，评估了它们大规模实施的潜力，并讨论了剩余的技术和政策挑战。研究结果强调了整合人工智能对提高CCS的有效性和可扩展性以支持全球脱碳目标的战略重要性。

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引用次数: 0

Effect of cation’s alkyl chain length of imidazolium-driven PVDF-based supported ionic liquid membranes on the CO2 separation performance from biogas and flue gas 咪唑驱动pvdf基负载离子液体膜阳离子烷基链长对沼气和烟气CO2分离性能的影响

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-16 DOI: 10.1016/j.ccst.2026.100572

G. Marco-Velasco, V. Martínez-Soria, M. Izquierdo, A. Cháfer, J.D. Badia-Valiente

This study investigates the impact of the alkyl chain length in imidazolium-based ILs on SILMs using poly(vinylidene fluoride) (PVDF) as a polymer substrate on the membrane’s physicochemical properties and CO₂ separation performance from CO₂/CH₄ and CO₂/N₂ gas mixtures. Particularly, 1-Ethyl, 1-Butyl and 1-Hexyl 3-methylimidazolium bis(trifluoromethylsulfonyl)imide, i.e. [EMIM][NTf₂], [BMIM][NTf₂], and [HMIM][NTf₂]-based SILMs, were assessed. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) confirmed and quantified the presence of ILs within the polymeric matrix, while differential scanning calorimetry (DSC) suggested larger electrostatic interactions for shorter alkyl chains on imidazolium cations. CO₂, CH₄ and N₂ permeability of each SILM were assessed by single-gas permeability tests and their CO₂/N₂ and CO₂/CH₄ selectivity were achieved. ILs with shorter alkyl chain presented stronger interactions with CO₂ molecules. [EMIM][NTf₂] SILM exhibited the highest single-gas CO₂ permeability (357.0 Barrer), CO₂/CH₄ selectivity (α_CO2/CH4 =23.5) and CO₂/N₂ selectivity (α_CO2/N2 =16.4), which were competitive when benchmarked in an upper bound plot. Afterwards, this SILM was tested in extended experiments under dry and humid conditions (≥ 90 h each), in which CO₂ feed composition was modified between CO₂/CH₄ 50/50 %v/v and 25/75 %v/v. CH₄ permeability increased as its proportion in the feed was reduced (from 15.4 Barrer using 100 %v/v CH₄ to 20.5 and 19.9 Barrer when CH₄ was fed at 50 %v/v or higher, under dry and humid conditions, respectively), affecting CO₂/CH₄ selectivity (from ∼24 for single gas to ∼17 and ∼19 in dry and humid experiments, respectively), remaining competitive regarding the technological benchmarking.

本文研究了以聚偏氟乙烯（PVDF）为聚合物底物的咪唑基膜的烷基链长度对膜的物理化学性能和CO2/CH4和CO2/N2混合气体分离性能的影响。特别是对1-乙基、1-丁基和1-己基3-甲基咪唑双（三氟甲基磺酰基）亚胺，即[EMIM][NTf2]、[BMIM][NTf2]和[HMIM][NTf2]基silm进行了评估。傅里叶变换红外光谱（FTIR）、扫描电镜（SEM）和能量色散x射线（EDX）证实并量化了聚合物基体中il的存在，而差示扫描量热法（DSC）表明咪唑阳离子上较短的烷基链存在较大的静电相互作用。通过单气体渗透性测试，评估了各SILM的CO2、CH4和N2渗透率，获得了其CO2/N2和CO2/CH4选择性。烷基链较短的ILs与CO2分子的相互作用较强。[EMIM][NTf₂]SILM表现出最高的单气CO₂渗透率（357.0 Barrer）， CO2/CH4选择性（αCO2/CH4 =23.5）和CO2/N2选择性（αCO2/N2 =16.4），在上界基准图中具有竞争性。然后，在干湿条件下（≥90 h）对该SILM进行扩展试验，其中CO2饲料成分在CO2/CH4 50/ 50% v/v和25/ 75% v/v之间进行改性。CH4渗透率随着其在饲料中所占比例的降低而增加（在干燥和潮湿条件下，分别从100% v/v CH4时的15.4 Barrer降至50% v/v或更高CH4时的20.5 Barrer和19.9 Barrer），影响CO2/CH4的选择性（在干燥和潮湿条件下，分别从单一气体的~ 24降至干燥和潮湿条件下的~ 17和~ 19），在技术基准方面保持竞争力。

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引用次数: 0

Mechanistic and Stability Study of the Integrated CO2 Capture-Electroreduction Process in Ethanolamine Solution over Ni/NC Atomic Catalysts Ni/NC原子催化剂上乙醇胺溶液中CO2捕获-电还原一体化过程机理及稳定性研究

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI: 10.1016/j.ccst.2026.100583

Rongchi Dai , Lijuan Zhang , Xinrui Yuan , Yuting He , Yixiong Lin , Hao Wu , Wenjin Wu , Hiroshi Machida , Koyo Norinaga

In recent years, the integrated systems for the cost-effective conversion of CO₂ into high-value products have emerged as a major research focus in advancing sustainable green chemistry. The integrated process not only addresses the high energy consumption during desorption but also simplifies the process and reduces costs. However, further improving CO₂ conversion efficiency and achieving system stability remain significant challenges. Here, we report an integrated CO₂ capture and electroreduction process (ICCE) using atomically dispersed Nickel catalysts (Ni/NC) for the direct electroreduction of CO₂ absorbed in 30 wt.% ethanolamine (MEA, MAE, EAE, DMEA) solutions to CO, achieving a high Faradaic efficiency of up to 91%. In addition, the authors compared the effects of different reaction temperatures and different partial pressures of CO₂ in the gas phase on the prolonged electroreduction reaction, and suggested that the integrated system maintaining a gas-liquid equilibrium, can be guaranteed to continuously electrolyze to produce CO at a high Faraday efficiency. Through multiple characterizations, like NMR spectroscopy and In-situ Raman spectroscopy, revealed that CO is primarily derived from interfacially regenerated free CO₂, while carbamate species are not directly reduced but instead adsorb on the Ni/NC catalyst surface as inhibitory intermediates.

近年来，经济有效地将二氧化碳转化为高价值产品的集成系统已成为推进可持续绿色化学的主要研究重点。该集成工艺不仅解决了解吸过程中高能耗的问题，而且简化了工艺流程，降低了成本。然而，进一步提高CO2转化效率和实现系统稳定性仍然是一个重大挑战。在这里，我们报道了一种集成的二氧化碳捕获和电还原过程（ICCE），使用原子分散的镍催化剂（Ni/NC）将30 wt.%乙醇胺（MEA， MAE， EAE， DMEA）溶液中吸收的二氧化碳直接电还原为CO，实现了高达91%的高法拉第效率。此外，作者还比较了不同反应温度和不同气相CO2分压对长时间电还原反应的影响，提出了保持气液平衡的集成系统，可以保证以较高的法拉第效率连续电解生成CO。通过核磁共振光谱和原位拉曼光谱等多种表征，发现CO主要来源于界面再生的游离CO2，而氨基甲酸酯类并未直接还原，而是作为抑制中间体吸附在Ni/NC催化剂表面。

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引用次数: 0

Integration of adsorption-based carbon capture with alkaline wastewater neutralization: Pilot-scale techno-economic and environmental assessment 基于吸附的碳捕获与碱性废水中和的集成：中试规模的技术经济和环境评估

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI: 10.1016/j.ccst.2026.100582

M. García-Atencia , J. Pujol , J. Fernandez-Garcia , R. Gonzalez-Olmos

The integration of carbon capture and utilization (CCU) technologies into industrial processes opens new pathways to mitigate climate change while aligning with the principles of the circular economy. This study evaluates the technical, environmental and economic performance of using CO₂ captured via vacuum swing adsorption (VSA) for the on-site neutralization of alkaline wastewater generated in a food processing facility. The pilot-scale VSA unit of this study treated flue gas from a natural gas-fired boiler, producing 79 tons of CO₂ per year with 76% (w/w) of CO₂ purity, 67% of CO₂ recovery and specific energy demand of 0.61 kWh/kg_CO2, including energy for final CO₂ compression. The captured CO₂ was successfully used to neutralize the alkaline wastewater. A life cycle assessment (LCA) was carried out to compare three neutralization scenarios: (i) conventional treatment with sulfuric acid (H₂SO₄), (ii) the use of commercial CO₂, and (iii) a circular scenario with the on-site reuse of the CO₂ captured through VSA. The LCA results indicate that the circular scenario reduces the climate change impact by 65% and 48% compared to the commercial CO₂ and H₂SO₄ scenarios, respectively. The environmental impact in the circular scenario is at least 78% lower than the worst-case scenario across nearly all impact categories. From an economic perspective, the circular scenario achieved similar costs to using H₂SO₄ while offering a 40% cost reduction compared to commercial CO₂. These findings demonstrate that on-site CCU for alkaline wastewater treatment is technically feasible at pilot scale and a more sustainable alternative.

将碳捕获与利用（CCU）技术整合到工业过程中，为缓解气候变化开辟了新的途径，同时符合循环经济的原则。本研究评估了通过真空摆动吸附（VSA）捕获的二氧化碳用于食品加工设施产生的碱性废水的现场中和的技术，环境和经济性能。本研究的中试规模VSA装置处理了来自天然气锅炉的烟气，每年产生79吨二氧化碳，二氧化碳纯度为76% (w/w)，二氧化碳回收率为67%，比能源需求为0.61千瓦时/公斤二氧化碳，包括用于最终二氧化碳压缩的能源。捕获的二氧化碳被成功地用于中和碱性废水。进行了生命周期评估（LCA），比较了三种中和方案：(i)用硫酸（H2SO4）进行常规处理，（ii）使用商业二氧化碳，以及（iii）通过VSA现场再利用捕获的二氧化碳的循环方案。LCA结果表明，与商业CO2和H2SO4情景相比，循环情景分别减少了65%和48%的气候变化影响。在几乎所有影响类别中，循环方案的环境影响至少比最坏情况低78%。从经济角度来看，循环方案的成本与使用H2SO4相似，但与商业二氧化碳相比，成本降低了40%。这些发现表明，在中试规模上，现场CCU处理碱性废水在技术上是可行的，并且是一种更可持续的替代方案。

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引用次数: 0

Ti(OH)4-assisted amine-modified silica aerogels for enhancing CO2 adsorption capacity and amine efficiency Ti(OH)4辅助胺修饰二氧化硅气凝胶提高CO2吸附能力和胺效率

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.ccst.2025.100566

Jin Young Joo , Monica Louise T. Triviño , Hyung-Ho Park , Jeong Gil Seo

Amine-modified silica aerogels are promising CO₂ sorbents owing to their high surface area, tunable pore structure, and strong chemisorption interactions between CO₂ and amine groups. However, their amine efficiency and adsorption capacity remain limited for practical applications. In this study, Ti(OH)₄ was introduced as an additive to enhance both the structural and functional performance of amine-grafted silica aerogels. The incorporation of Ti(OH)₄ modified the pore structure, improved the dispersion of amine groups within the silica network, and increased the number of available hydroxyl groups. As a result, the Ti(OH)₄-containing samples exhibited improved CO₂ capture performance and higher amine efficiency under both dry and humid conditions. Detailed analyses further reveal that the additive promoted the formation of bicarbonate intermediates in humid environments, leading to a significant enhancement in adsorption performance. This was supported by TPD-MS results, which showed an increased ratio of desorbed H₂O to CO₂, indicating that Ti(OH)₄ actively participated in the cooperative reaction between CO₂, H₂O, and amine species. The additive-containing sample achieved amine efficiencies of up to 0.475 mol-CO₂/mol-N under dry conditions and 0.905 mol-CO₂/mol-N under humid conditions, which is substantially higher than that of the additive-free sample. These findings demonstrate that Ti(OH)₄ serves as an effective multifunctional additive that enhances amine dispersion and improves CO₂-amine interactions, providing a suitable strategy for developing high-performing amine-based CO₂ adsorbents for practical applications.

胺改性二氧化硅气凝胶由于其高表面积、可调节的孔隙结构以及二氧化碳与胺基之间强的化学吸附作用而成为很有前途的二氧化碳吸附剂。然而，它们的胺效率和吸附能力在实际应用中仍然有限。在本研究中，Ti(OH)4作为添加剂被引入以提高胺接枝二氧化硅气凝胶的结构和功能性能。Ti(OH)4的掺入改变了孔结构，改善了胺基在二氧化硅网络中的分散，增加了可用羟基的数量。结果表明，含Ti(OH)4的样品在干燥和潮湿条件下均表现出更好的CO2捕获性能和更高的胺效率。进一步的详细分析表明，添加剂促进了潮湿环境中碳酸氢盐中间体的形成，从而显著提高了吸附性能。TPD-MS结果也支持了这一观点，结果显示解吸H2O与CO2的比例增加，表明Ti(OH)4积极参与了CO2、H2O和胺类之间的协同反应。在干燥条件下，含添加剂样品的胺效率高达0.475 mol-CO2/mol-N，在潮湿条件下为0.905 mol-CO2/mol-N，大大高于无添加剂样品。这些研究结果表明，Ti(OH)4是一种有效的多功能添加剂，可以增强胺的分散性，改善二氧化碳与胺的相互作用，为开发具有实际应用价值的高性能胺基二氧化碳吸附剂提供了合适的策略。

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引用次数: 0

Comparative environmental techno-economic assessments (eTEAs) of onboard amine-based carbon capture and boil-off gas handling systems on LCO2 carriers LCO2载体上基于胺的碳捕获和蒸发气体处理系统的比较环境技术经济评估（eTEAs）

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.ccst.2026.100569

Hongkyoung Shin , Juyoung Oh , Yunju Jeon , Youngsub Lim , Thomas A. Adams II

The continuous increase in greenhouse gas (GHG) emissions and the strengthening of environmental regulations have brought Carbon Capture, Utilization, and Storage (CCUS) technology into focus. Most liquefied carbon dioxide carriers (LCO₂Cs) employ liquefied natural gas (LNG) propulsion, but they still emit significant GHG emissions, highlighting the need for further reduction. While boil-off gas (BOG) handling is essential for long-distance LCO₂C operations, no studies have examined onboard carbon capture and storage (OCCS) systems integrated with BOG handling systems. This study evaluates five operational cases—BOG re-liquefaction (RLIQ), OCCS, purge gas recapture, and their combinations—to assess the GHG reduction and economic feasibility of LCO₂Cs. Although standalone RLIQ and OCCS showed similar reduction rates (29% and 30%), the avoidance cost of OCCS alone was more than two times higher. Integrating BOG RLIQ, OCCS, and purge recirculation achieved up to 69% well-to-wake emission reduction with an avoidance cost of $355.9/t_CO₂eq. Therefore, integrating OCCS with BOG RLIQ is the most effective approach for LCO₂Cs. Despite limited competitiveness under current low carbon tax levels, the avoidance cost of $320–416/t_CO₂eq remains favorable compared with other low-carbon technologies such as direct air capture ($500–1100/t_CO₂eq).

温室气体（GHG）排放的持续增加和环境法规的加强使碳捕集、利用和封存（CCUS）技术成为人们关注的焦点。大多数液化二氧化碳运输船（LCO2Cs）采用液化天然气（LNG）推进，但它们仍会排放大量温室气体，因此需要进一步减排。虽然蒸发气（BOG）处理对于长距离LCO2C作业至关重要，但目前还没有研究将BOG处理系统集成在船上的碳捕获和储存（OCCS）系统中。本研究评估了五种操作案例——bog再液化（RLIQ）、OCCS、吹扫气体再捕获及其组合——以评估LCO2Cs的温室气体减排和经济可行性。虽然单独的RLIQ和OCCS显示出相似的降低率（29%和30%），但单独的OCCS的避免成本高出两倍多。整合BOG RLIQ、OCCS和吹扫再循环，可将井尾排放减少69%，避免成本为355.9美元/tCO₂当量。因此，将OCCS与BOG RLIQ集成是lco2c最有效的方法。尽管在目前的低碳税水平下竞争力有限，但与直接空气捕获（500-1100美元/tCO₂当量）等其他低碳技术相比，320-416美元/tCO₂当量的避免成本仍然是有利的。

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引用次数: 0

Outside Back Cover 外封底

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-03-12 DOI: 10.1016/S2772-6568(26)00028-X

引用次数: 0

Corrigendum to “Volatile nitrosamine manual stack monitoring method: sampling validation and performance assessment on stack simulated conditions” [Carbon Capture Science & Technology, Volume 17, December 2025, 100539] “挥发性亚硝胺手动堆监测方法：堆模拟条件下的采样验证和性能评估”的勘误表[碳捕集科学与技术，第17卷，2025年12月，100539]

Carbon Capture Science & Technology

Pub Date : 2026-03-01 Epub Date: 2026-02-10 DOI: 10.1016/j.ccst.2026.100580

Haydn Barros, Richard Harvey, Hannah Cheales-Norman, Chris Dimopoulos, Rod Robinson

引用次数: 0