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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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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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Al2sub>O3sub> and CeO2sub>-promoted MgO sorbents for CO2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

《化学科学与工程前沿（英文）》 2018年第12卷第1期页码 83-93 doi: 10.1007/s11705-017-1691-6

摘要： A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderate temperatures. The CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO . Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which was 61% higher than that of MgO (15.3 mg-CO /g-sorbent). The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimal temperature of 200 °C. Combining with the characterization results, we conclude that the promotion effect on CO sorption with the addition of Al O and CeO can be attributed to the increased surface area with reduced MgO crystallite size. Moreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in the CO capacity than Al O promoter. Both the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course of fifteen CO sorption-desorption cycles. Compared to Al O , CeO is more effective for promoting the CO capacity of MgO. To enhance the CO capacity of MgO sorbent, increasing the basicity is more effective than the increase in the surface area.

关键词： CO₂ capture MgO sorbents Al₂O₃ CeO₂ flue gas

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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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基于实时CT扫描技术的CO2sub>和N2sub>交替注入条件下煤吸附膨胀和解吸收缩规律研究 Article

张广磊, P.G. Ranjith, Herbert E. Huppert

《工程（英文）》 2022年第18卷第11期页码 88-95 doi: 10.1016/j.eng.2022.03.010

摘要：

深部煤层是分布最广泛的适宜二氧化碳（CO2sub>）地质封存的地层之一，且通常位于大型CO2sub>排放源附近。将CO2sub>注入到煤层中具有巨大的CO2sub>封存潜力，同时可以提高煤层气的采收率（CO2sub>-ECBM）。然而，目前CO2sub>-ECBM先导实验仍存在技术问题需要解决，即CO2sub>的注入会引起煤层渗透率降低进而影响长期注入能力。本文采用原位同步辐射X射线显微CT扫描技术，首次在原位条件下直接证明了注入氮气（N2sub>）可以置换解吸CO2sub>并减小因CO2sub>吸附引起的煤基质膨胀研究结果表明，煤层中注入经过简单处理的烟道气（主要成分为N2sub>和CO2sub>），是技术上可行的CO2sub>-ECBM 替代方案。

关键词： CCS CO2sub>-ECBM 碳中和 X 射线成像煤渗透率

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以净零排放为目标的封存驱动型CO2sub>提高采收率方法 Article

刘月亮, 芮振华

《工程（英文）》 2022年第18卷第11期页码 79-87 doi: 10.1016/j.eng.2022.02.010

摘要：可通过驱油过程将CO2sub>封存在油藏地质体中，因此，CO2sub>驱油与封存被视为降低CO2sub>排放的重要手段之一。本研究提出了一种新型的CO2sub>提高采收率（EOR）方法，即封存驱动型CO2sub>提高采收率，其主要目标是通过在油藏中封存尽可能多的CO2sub>来实现CO结果表明，DME可提高CO2sub>在原油中的溶解度，有利于CO2sub>的溶解封存；可抑制因CO2sub>的抽提作用造成的原油轻质组分“逃逸&rdquo封存驱动型CO2sub> EOR方法在提高波及效率方面优于传统的CO2sub> EOR，尤其是在采油后期更为明显；同时，封存驱动型CO2sub> EOR比传统的此外，通过封存驱动型CO2sub> EOR封存的CO2sub>量远超采出原油燃烧产生的碳排放总量。

关键词： CO2sub> EOR CO2sub>净排放量二甲醚封存驱动型CO2sub> EOR CO2sub>封存

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对二氧化碳具有选择性的聚环氧乙烷基薄膜的发展——从实验室到中试规模

Brinkmann Torsten,Lillepärg Jelena,Notzke Heiko,Pohlmann Jan,Shishatskiy Sergey,Wind Jan,Wolff Thorsten

《工程（英文）》 2017年第3卷第4期页码 485-493 doi: 10.1016/J.ENG.2017.04.004

摘要：

气体膜分离法是从气流中分离二氧化碳（CO2sub>）的最有前途的技术之一。例如，采用该技术对燃烧过程中的烟气进行处理，以达到CO2sub> 捕集和封存的目的。在环境温度下，当CO2sub>/N2sub> 选择性超过55 时，这种薄膜的CO2sub>渗透率高达4 m³(STP)·m⁻²·h⁻¹·bar⁻¹（注：1bar=10⁵ Pa

关键词：气体渗透薄膜复合膜 CO2sub>分离 CCS 沼气处理膜组件

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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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Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants

《化学科学与工程前沿（英文）》 2022年第16卷第2期页码 198-209 doi: 10.1007/s11705-021-2057-7

摘要： Solvent-based post-combustion capture technologies have great potential for CO₂ mitigation in traditional coal-fired power plants. Modelling and simulation provide a low-cost opportunity to evaluate performances and guide flexible operation. Composed by a series of partial differential equations, first-principle post-combustion capture models are computationally expensive, which limits their use in real time process simulation and control. In this study, we propose a first-principle approach to develop the basic structure of a reduced-order model and then the dominant factor is used to fit properties and simplify the chemical and physical process, based on which a universal and hybrid post-combustion capture model is established. Model output at steady state and trend at dynamic state are validated using experimental data obtained from the literature. Then, impacts of liquid-to-gas ratio, reboiler power, desorber pressure, tower height and their combination on the absorption and desorption effects are analyzed. Results indicate that tower height should be designed in conjunction with the flue gas flow, and the gas-liquid ratio can be optimized to reduce the reboiler power under a certain capture target.

关键词： CO₂ capture post-combustion capture simulation dominant factor

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基于一步法制备超高PEO负载的亲 CO2sub>气体分离膜用于高效碳捕集 Article

朱斌, 赫羴珊, 吴亚东, 李松伟, 邵路

《工程（英文）》 2023年第26卷第7期页码 220-228 doi: 10.1016/j.eng.2022.03.016

摘要：

针对日益增加的大气CO2sub>含量，膜技术被认为是一种有前景的碳捕集策略，其中亲CO2sub>分离膜已经展示出显著的应用潜力，特别是在CO2sub>/轻质气体分离方面。以聚环氧乙烷（PEO）为代表的CO2sub>亲和材料，因其与CO2sub>的特殊偶极-四极矩相互作用而吸引了广泛的研究关注。此外，高结构稳定性使得分离膜在高进料压力（高达20 bar）下表现出更好的CO2sub>渗透系数和气体选择性。

关键词：膜分离气体分离 CO2sub>捕集亲CO2sub>分离膜聚环氧乙烷

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CO2sub> capture using membrane contactors: a systematic literature review

Sanaa Hafeez, Tayeba Safdar, Elena Pallari, George Manos, Elsa Aristodemou, Zhien Zhang, S. M. Al-Salem, Achilleas Constantinou

《化学科学与工程前沿（英文）》 2021年第15卷第4期页码 720-754 doi: 10.1007/s11705-020-1992-z

摘要： With fossil fuel being the major source of energy, CO emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO . A systematic review of the literature has been conducted to analyse and assess CO removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO removal. This current systematic review in CO removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO .

关键词： CO₂ capture preferred reporting items for systematic reviews and meta-analyses membrane contactor absorbent

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地热能储存与CO2sub>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CO2sub>羽流进行地热储能可通过将CO2sub>储存于地质体中来缓解温室效应。然后，将产生的高能CO2sub>引入到目标油藏中，用于CO2sub>利用和地热能储存。最后，将CO2sub>有效地封存在地质油藏体中。结果表明，随着高能CO2sub>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，CO2sub>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CO2sub>场地的封存潜力的评估，CO2sub>注入110年后，地质体的利用率将高达91.2%，场地内CO2sub>的最终注入量将高达9.529 经过1000年封存，超临界相在CO2sub>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CO2sub>封存量显著增加。

关键词：地热能储存 CO2sub>封存碳中和大规模 CO2sub>利用

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and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based sorbents for COcapture in real conditions

《能源前沿（英文）》 2023年第17卷第3期页码 380-389 doi: 10.1007/s11708-023-0872-x

摘要： Alkali carbonate-based sorbents (ACSs), including Na₂CO₃- and K₂CO₃-based sorbents, are promising for CO₂ capture. However, the complex sorbent components and operation conditions lead to the versatile kinetics of CO₂ sorption on these sorbents. This paper proposed that operando modeling and measurements are powerful tools to understand the mechanism of sorbents in real operating conditions, facilitating the sorbent development, reactor design, and operation parameter optimization. It reviewed the theoretical simulation achievements during the development of ACSs. It elucidated the findings obtained by utilizing density functional theory (DFT) calculations, ab initio molecular dynamics (AIMD) simulations, and classical molecular dynamics (CMD) simulations as well. The hygroscopicity of sorbent and the humidity of gas flow are crucial to shifting the carbonation reaction from the gas−solid mode to the gas−liquid mode, boosting the kinetics. Moreover, it briefly introduced a machine learning (ML) approach as a promising method to aid sorbent design. Furthermore, it demonstrated a conceptual compact operando measurement system in order to understand the behavior of ACSs in the real operation process. The proposed measurement system includes a micro fluidized-bed (MFB) reactor for kinetic analysis, a multi-camera sub-system for 3D particle movement tracking, and a combined Raman and IR sub-system for solid/gas components and temperature monitoring. It is believed that this system is useful to evaluate the real-time sorbent performance, validating the theoretical prediction and promoting the industrial scale-up of ACSs for CO₂ capture.

关键词： CO₂ capture carbonation theoretical modeling operando techniques reaction visualization

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A coal-fired power plant integrated with biomass co-firing and CO capture for zero carbon emission

《能源前沿（英文）》 2022年第16卷第2期页码 307-320 doi: 10.1007/s11708-021-0790-8

摘要： A promising scheme for coal-fired power plants in which biomass co-firing and carbon dioxide capture technologies are adopted and the low-temperature waste heat from the CO₂ capture process is recycled to heat the condensed water to achieve zero carbon emission is proposed in this paper. Based on a 660 MW supercritical coal-fired power plant, the thermal performance, emission performance, and economic performance of the proposed scheme are evaluated. In addition, a sensitivity analysis is conducted to show the effects of several key parameters on the performance of the proposed system. The results show that when the biomass mass mixing ratio is 15.40% and the CO₂ capture rate is 90%, the CO₂ emission of the coal-fired power plant can reach zero, indicating that the technical route proposed in this paper can indeed achieve zero carbon emission in coal-fired power plants. The net thermal efficiency decreases by 10.31%, due to the huge energy consumption of the CO₂ capture unit. Besides, the cost of electricity (COE) and the cost of CO₂ avoided (COA) of the proposed system are 80.37 $/MWh and 41.63 $/tCO₂, respectively. The sensitivity analysis demonstrates that with the energy consumption of the reboiler decreasing from 3.22 GJ/tCO₂ to 2.40 GJ/ tCO₂, the efficiency penalty is reduced to 8.67%. This paper may provide reference for promoting the early realization of carbon neutrality in the power generation industry.

关键词： coal-fired power plant biomass co-firing CO₂ capture zero carbon emission performance evaluation

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CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

《能源前沿（英文）》 2023年第17卷第3期页码 428-445 doi: 10.1007/s11708-023-0865-9

摘要： In this work, using fractured shale cores, isothermal adsorption experiments and core flooding tests were conducted to investigate the performance of injecting different gases to enhance shale gas recovery and CO₂ geological storage efficiency under real reservoir conditions. The adsorption process of shale to different gases was in agreement with the extended-Langmuir model, and the adsorption capacity of CO₂ was the largest, followed by CH_4, and that of N₂ was the smallest of the three pure gases. In addition, when the CO₂ concentration in the mixed gas exceeded 50%, the adsorption capacity of the mixed gas was greater than that of CH₄, and had a strong competitive adsorption effect. For the core flooding tests, pure gas injection showed that the breakthrough time of CO₂ was longer than that of N₂, and the CH₄ recovery factor at the breakthrough time (

R C H 4

) was also higher than that of N₂. The

R C H 4

of CO₂ gas injection was approximately 44.09%, while the

R C H 4

of N₂ was only 31.63%. For CO₂/N₂ mixed gas injection, with the increase of CO₂ concentration, the

R C H 4

increased, and the

R C H 4

for mixed gas CO₂/N₂ = 8:2 was close to that of pure CO₂, about 40.24%. Moreover, the breakthrough time of N₂ in mixed gas was not much different from that when pure N₂ was injected, while the breakthrough time of CO₂ was prolonged, which indicated that with the increase of N₂ concentration in the mixed gas, the breakthrough time of CO₂ could be extended. Furthermore, an abnormal surge of N₂ concentration in the produced gas was observed after N₂ breakthrough. In regards to CO₂ storage efficiency (

S s t o r a g e - C O 2

), as the CO₂ concentration increased,

S s t o r a g e - C O 2

also increased. The

S s t o r a g e - C O 2

of the pure CO₂ gas injection was about 35.96%, while for mixed gas CO₂/N₂ = 8:2,

S s t o r a g e - C O 2

was about 32.28%.

关键词： shale gas gas injection competitive adsorption enhanced shale gas recovery CO₂ geological storage

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标题作者时间类型操作

Reduction potential of the energy penalty for CO capture in CCS

期刊论文

Frontier science and challenges on offshore carbon storage

期刊论文

Al2sub>O3sub> and CeO2sub>-promoted MgO sorbents for CO2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

期刊论文

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

期刊论文

基于实时CT扫描技术的CO2sub>和N2sub>交替注入条件下煤吸附膨胀和解吸收缩规律研究

张广磊, P.G. Ranjith, Herbert E. Huppert

期刊论文

以净零排放为目标的封存驱动型CO2sub>提高采收率方法

刘月亮, 芮振华

期刊论文

对二氧化碳具有选择性的聚环氧乙烷基薄膜的发展——从实验室到中试规模

Brinkmann Torsten,Lillepärg Jelena,Notzke Heiko,Pohlmann Jan,Shishatskiy Sergey,Wind Jan,Wolff Thorsten

期刊论文

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

期刊论文

Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants

期刊论文

基于一步法制备超高PEO负载的亲 CO2sub>气体分离膜用于高效碳捕集

朱斌, 赫羴珊, 吴亚东, 李松伟, 邵路

期刊论文

CO2sub> capture using membrane contactors: a systematic literature review

Sanaa Hafeez, Tayeba Safdar, Elena Pallari, George Manos, Elsa Aristodemou, Zhien Zhang, S. M. Al-Salem, Achilleas Constantinou

期刊论文

地热能储存与CO2sub>封存和利用的一体化框架

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

期刊论文

and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based sorbents for COcapture in real conditions

期刊论文

A coal-fired power plant integrated with biomass co-firing and CO capture for zero carbon emission

期刊论文

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

期刊论文

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