Progress and prospect of carbon dioxide capture, utilization and storage in CNPC oilfields

The development history of carbon capture,utilization and storage for enhanced oil recovery(CCUS-EOR)in China is comprehensively reviewed,which consists of three stages:research and exploration,field test and industrial application.The breakthrough understanding of CO_(2) flooding mechanism and field practice in recent years and the corresponding supporting technical achievements of CCUS-EOR project are systematically described.The future development prospects are also pointed out.After nearly 60 years of exploration,the theory of CO_(2) flooding and storage suitable for continental sedimentary reservoirs in China has been innovatively developed.It is suggested that C7–C15 are also important components affecting miscibility of CO_(2) and crude oil.The mechanism of rapid recovery of formation energy by CO_(2) and significant improvement of block productivity and recovery factor has been verified in field tests.The CCUS-EOR reservoir engineering design technology for continental sedimentary reservoir is established.The technology of reservoir engineering parameter design and well spacing optimization has been developed,which focuses on maintaining miscibility to improve oil displacement efficiency and uniform displacement to improve sweep efficiency.The technology of CO_(2) capture,injection and production process,whole-system anticorrosion,storage monitoring and other whole-process supporting technologies have been initially formed.In order to realize the efficient utilization and permanent storage of CO_(2),it is necessary to take the oil reservoir in the oil-water transition zone into consideration,realize the large-scale CO_(2) flooding and storage in the area from single reservoir to the overall structural control system.The oil reservoir in the oil-water transition zone is developed by stable gravity flooding of injecting CO_(2) from structural highs.The research on the storage technology such as the conversion of residual oil and CO_(2) into methane needs to be carried out.

Navigating the hydrogen prospect:A comprehensive review of sustainable source-based production technologies,transport solutions,advanced storage mechanisms,and CCUS integration

The review is a comprehensive discussion of current research advances,commercial scale developments,challenges,and techno-eco nomics for the entire H_(2) value chain,including production,mainly focusing on sustainable sources,storage,and transport.The challenges,advantages,and uses of H_(2) energy are included at length.Moreover,apart from the sustainable production approaches,the approaches and current developments for combating the carbon dioxide(CO_(2))emissions from existing H_(2) production facilities are highlighted in terms of ca rbon capture,utilization,and storage(CCUS).Concisely,the review discusses current material and recent technological adva ncements in developing pilot projects and large-scale establishments for viable and rapidly emerging sou rce-ba sed H_(2) productio n.Moreover,the review also aims to provide an in-depthdiscussion and explore current developments based on the advantages of H_(2) energy in terms of its utilization,based on its high energy density,and its ability to be used as a feedstock and fuel.On the other hand,the challenges of H_(2) are also elabo rated.Next,the role of CCUS in a carbon-neutral economy and value chain for minimization of emissions from existing facilities is thoroughly deliberated,and the recent commercial-scale implementation of CCUS technologies is highlighted.Extending the utilization and recycling of captured CO_(2) emissions along with H_(2) to produce e-fuels in terms of current advances is detailed in this review.Fu rthermore,the most applicable,efficient,a nd develo ping approaches are discussed for physical and chemical H_(2) storage,considering recent la rge-scale implementations of liquid carriers and liquid organic hydrogen carriers as storage options.Lastly,the review elaborates on recent insights into advances in H_(2) transport infrastructure,including compressed and liquid H_(2) delivery via roads,ships,pipelines,and flight cargo.The review gives precise insights into the recent scenario through an elaborated conclusion of each discussion topic separately and a discussion of future perspectives.The current review will help researchers to fully understand the ongoing research advancements and challenges in the H_(2) value chain for formulating new solutions for sustainable H_(2) production,alo ng with focusing on suitable approaches for its storage and tra nsport to make the production and utilization of H_(2) applicable on a large scale.

Criteria for Selecting Carbon Subsurface and Ocean Storage Site in Developing Countries: A Review

Important first phases in the process of implementing CO2 subsurface and ocean storage projects include selecting of best possible location(s) for CO2 storage, and site selection evaluation. Sites must fulfill a number of criteria that boil down to the following basics: they must be able to accept the desired volume of CO2 at the rate at which it is supplied from the CO2 source(s);they must as well be safe and reliable;and must comply with regulatory and other societal requirements. They also must have at least public acceptance and be based on sound financial analysis. Site geology;hydrogeological, pressure, and geothermal regimes;land features;location, climate, access, etc. can all be refined from these basic criteria. In addition to aiding in site selection, site characterization is essential for other purposes, such as foreseeing the fate and impacts of the injected CO2, and informing subsequent phases of site development, including design, permitting, operation, monitoring, and eventual abandonment. According to data from the IEA, in 2022, emissions from Africa and Asias emerging markets and developing economies, excluding Chinas, increased by 4.2%, which is equivalent to 206 million tonnes of CO2 and were higher than those from developed economies. Coal-fired power generation was responsible for more than half of the rise in emissions that were recorded in the region. The difficulty of achieving sustainable socio-economic progress in the developing countries is entwined with the work of reducing CO2 emissions, which is a demanding project for the economy. Organisations from developing countries, such as Bangladesh, Cameroon, India, and Nigeria, have formed partnerships with organisations in other countries for lessons learned and investment within the climate change arena. The basaltic rocks, coal seams, depleted oil and gas reservoirs, soils, deep saline aquifers, and sedimentary basins that developing countries (Bangladesh, Cameroon, India, and Nigeria etc.) possess all contribute to the individual countrys significant geological sequestration potential. There are limited or no carbon capture and storage or clean development mechanism projects running in these countries at this time. The site selection and characterization procedure are not complete without an estimate of the storage capacity of a storage location. Estimating storage capacity relies on volumetric estimates because a site must accept the planned volume of CO2 during the active injection period. As more and more applications make use of site characterization, so too does the body of written material on the topic. As the science of CO2 storage develops, regulatory requirements are implemented, field experience grows, and the economics of CO2 capture and storage improve, so too will site selection and characterisation change.

Progress and prospects of carbon dioxide capture,EOR-utilization and storage industrialization

Carbon dioxide capture,EOR-utilization and storage(CCUS-EOR)are the most practical and feasible large-scale carbon reduction technologies,and also the key technologies to greatly improve the recovery of low-permeability oil fields.This paper sorts out the main course of CCUS-EOR technological development abroad and its industrialization progress.The progress of CCUS-EOR technological research and field tests in China are summarized,the development status,problems and challenges of the entire industry chain of CO_(2) capture,transportation,oil displacement,and storage are analyzed.The results show a huge potential of the large-scale application of CCUS-EOR in China in terms of carbon emission reduction and oil production increase.At present,CCUS-EOR in China is in a critical stage of development,from field pilot tests to industrialization.Aiming at the feature of continental sedimentary oil and gas reservoirs in China,and giving full play to the advantages of the abundant reserves for CO_(2) flooding,huge underground storage space,surface infrastructure,and wide distribution of wellbore injection channels,by cooperating with carbon emission enterprises,critical technological research and demonstration project construction should be accelerated,including the capture of low-concentration CO_(2) at low-cost and on large-scale,supercritical CO_(2) long-distance transportation,greatly enhancing oil recovery and storage rate,and CO_(2) large-scale and safe storage.CCUS-EOR theoretical and technical standard system should be constructed for the whole industrial chain to support and promote the industrial scale application,leading the rapid and profitable development of CCUS-EOR emerging industrial chain with innovation.

The Joule–Thomson effect of (CO_(2)+H_(2)) binary system relevant to gas switching reforming with carbon capture and storage(CCS)

The Joule-Thomson effect is one of the important thermodynamic properties in the system relevant to gas switching reforming with carbon capture and storage(CCS). In this work, a set of apparatus was set up to determine the Joule-Thomson effect of binary mixtures(CO_(2)+ H_(2)). The accuracy of the apparatus was verified by comparing with the experimental data of carbon dioxide. The Joule-Thomson coefficients(μ_(JT)) for(CO_(2)+ H_(2)) binary mixtures with mole fractions of carbon dioxide(x_(CO_(2))= 0.1, 0.26, 0.5,0.86, 0.94) along six isotherms at various pressures were measured. Five equations of state EOSs(PR,SRK, PR, BWR and GERG-2008 equation) were used to calculate the μ_(JT)for both pure systems and binary systems, among which the GERG-2008 predicted best with a wide range of pressure and temperature.Moreover, the Joule-Thomson inversion curves(JTIC) were calculated with five equations of state. A comparison was made between experimental data and predicted data for the inversion curve of CO_(2). The investigated EOSs show a similar prediction of the low-temperature branch of the JTIC for both pure and binary systems, except for the BWRS equation of state. Among all the equations, SRK has the most similar result to GERG-2008 for predicting JTIC.

Technical Perspective of Carbon Capture,Utilization,and Storage

Carbon dioxide(CO_(2))is the primary greenhouse gas contributing to anthropogenic climate change which is associated with human activities.The majority of CO_(2) emissions are results of the burning of fossil fuels for energy,as well as industrial processes such as steel and cement production.Carbon capture,utilization,and storage(CCUS)is a sustainable technology promising in terms of reducing CO_(2) emissions that would otherwise contribute to climate change.From this perspective,the discussion on carbon capture focuses on chemical absorption technology,primarily due to its commercialization potential.The CO_(2) absorptive capacity and absorption rate of various chemical solvents have been summarized.The carbon utilization focuses on electrochemical conversion routes converting CO_(2) into potentially valuable chemicals which have received particular attention in recent years.The Faradaic conversion efficiencies for various CO_(2) reduction products are used to describe efficiency improvements.For carbon storage,successful deployment relies on a better understanding of fluid mechanics,geomechanics,and reactive transport,which are discussed in details.

The European Carbon dioxide Capture and Storage Laboratory Infrastructure(ECCSEL)

The transition to a non-emitting energy mix for power generation will take decades. This transition will need to be sustainable, e.g.economically affordable. Fossil fuels which are abundant have an important role to play in this respect, provided that Carbon Capture and Storage(CCS) is progressively implemented. CCS is the only way to reduce emissions from energy intensive industries.Thus, the need for upgraded and new CCS research facilities is widely recognised among stakeholders across Europe, as emphasised by the Zero Emissions Platform(ZEP) [1] and the European Energy Research Alliance on CCS(EERA-CCS) [2].The European Carbon Dioxide Capture and Storage Laboratory Infrastructure, ECCSEL, provides funders, operators and researchers with significant benefits by offering access to world-class research facilities that, in many cases, are unlikely for a single nation to support in isolation.This implies creation of synergy and the avoidance of duplication as well as streamlining of funding for research facilities.ECCSEL offers open access to its advanced laboratories for talented scientists and visiting researchers to conduct cutting-edge research.In the planning of ECCSEL, gap analyses were performed and CCS technologies have been reviewed to underpin and envisage the future experimental setup; 1) Making use of readily available facilities, 2) Modifying existing facilities, and 3) Planning and building entirely new advanced facilities.The investments required for the first ten years(2015-2025) are expected to be in the range of €80-120 miilion. These investments show the current level of ambition, as proposed during the preparatory phase(2011-2014).Entering the implementation phase in 2015, 9 European countries signed Letter of Intent(LoI) to join a ECCSEL legal entity: France, United Kingdom, Netherlands, Italy, Spain, Poland, Greece, Norway and Switzerland(active observer). As the EU ERIC-regulation [3] would offer the most suitable legal framework for ECCSEL, the host country, Norway, will apply for establishing ERIC as the ECCSEL Research Infrastructure(RI)legal entity in 2017. Until the ECCSEL ERIC is approved by the European Commission(probably by summer 2017), an interim MoU agreement for the implementation phase of ECCSEL RI has been signed by 13 research institutions and universities representing the 9 countries. A consortium of these partners were granted 3 million EURO from Horizon 2020 to boost implementation of ECCSEL from September 2015 and two years onwards.?2016, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license(http://creativecommons.org/licenses/by-nc-nd/4.0/).

Carbon Dioxide Capture and Utilization for Gas Engine

Sodium glycinate absorption and ethylene carbonate synthesis from a mixture gas of ethylene oxide and carbon dioxide are evaluated as carbon dioxide capture and utilization system for gas engine flue gas. The energy requirement for CO2 capture is estimated at 3.3 GJ/tonne CO2. The ethylene carbonate synthesis utilizes more than 90% of the captured CO2 and supply 2.5 GJ/tonne CO2 of thermal energy, which is 76% of the energy requirement for CO2 capture. The thermal integration of the sodium glycinate absorption and the ethylene carbonate synthesis reduces the energy requirement for CO2 capture from 3.3 GJ/tonne CO2 to 0.8 GJ/tonne CO2. The energy requirement for the CO2 capture is supplied using the steam saturated at 0.78 MPa from the gas engine without its electric power reduction.

Mapping Highly Cost-Effective Carbon Capture and Storage Opportunities in India

Carbon dioxide (CO2) is the primary anthropogenic greenhouse gas (GHG). India’s CO2 emissions are expected to increase 70% by 2025. Geologic carbon storage (GCS) offers a way to reduce CO2 emissions. Here we present the results of a search for the most cost-effective GCS opportunities in India. Source-Sink matching for large and concentrated CO2 sources near geological storage in India indicates one very high priority target, a fertilizer plant in the city of Narmadanagar in Bharuch District of Gujarat Province, India that is <20 km from old oil and gas fields in the Cambay Basin. Two pure CO2 sources are <20 km from deep saline aquifers and one

实现碳中和目标的CCUS产业发展展望

中国碳中和目标的实现对CCUS技术需求巨大,亟须加快培育CCUS产业,赋能中国碳中和时代高质量发展。CCUS技术全链条产业体系建设将牵引制造业、采矿业、金融业等七大产业门类、25个大类和64个小类国民经济行业的技术、设备、材料、服务、市场及政策等创新需求,培植碳核查、碳金融、碳资产管理等新产业。围绕中国CCUS产业化现存的技术基础薄弱、市场被国外厂商主导、政策体系不完善等挑战,建议未来从以下几方面着手:搭建CCUS产业基础数据共享平台,加大产业关键技术研发投入,打造CCUS产业孵化基地,探索创新产业商业模式及市场机制,重视CCUS专业人才培养等。

含CCUS和P2G的综合能源系统分布式鲁棒优化调度

在双碳战略背景下,综合能源系统成为探索可再生能源低碳高效利用及多能耦合的主要途径。为兼顾综合能源系统在低碳优化时的稳定性和经济效益,提出了一种含碳捕集、利用与封存-电转气协同运行的综合能源系统分布式鲁棒低碳优化策略。首先,对电转气过程精细化建模,研究氢能的多方面效益,建立CHP-CCUS-P2G耦合模型,并引入阶梯式碳交易机制,提出一种基于阶梯式碳交易机制的CHP-CCUS-P2G低碳经济调度方法;其次,考虑风光出力的不确定性,以调度系统中可用的历史数据为基础,构建数据驱动下min-max-min的两阶段鲁棒调度模型,采用1-范数和∞-范数约束场景概率分布模糊集;最后,基于列约束生成算法对模型反复迭代求解。算例仿真结果表明,上述模型提高了IES的风光消纳率和经济性,并降低了系统碳排放量。

双碳愿景下CCUS提高油气采收率技术

二氧化碳(CO_(2))捕集与封存技术(CCS)是实现“双碳”目标的一项重大技术,如何运用CCS技术实现碳减排,成为全球关注的热点问题。因地质体具有良好的封闭性和巨大的封存潜力,CO_(2)地质封存成为碳封存的首选方式。单纯的地质封存项目成本高昂,不适宜开展大规模推广;油气藏注CO_(2)提高采收率技术在全球范围内已经较为成熟,其目的主要是提高油气采收率。将这两者相结合,大幅度提高油气采收率的同时,可实现CO_(2)长久安全封存,节约碳封存成本。在对CO_(2)地质封存与油气藏注CO_(2)提高采收率技术的作用机理与发展现状进行阐述的基础上,提出“双碳”愿景下中国油气工业应大力发展二氧化碳捕集、利用及封存(CCUS)提高油气采收率技术,实现CO_(2)绿色资源化利用,达到既实现CO_(2)的地质封存又提高油气采收率双赢的目的。指出目前的技术瓶颈及进一步发展的方向,特别是随着油气勘探开发领域向非常规、难采储量油气藏发展,中国大力发展CCUS提高油气采收率技术更具重要性和迫切性,并且具有广阔的应用前景,对于中国顺利实现“双碳”目标,保障国家能源安全及可持续高质量发展具有重要意义。

计及P2G的综合能源系统CCUS容量规划

考虑到碳捕集利用与封存(CCUS)是对电转气(P2G)过程中二氧化碳(CO_(2))来源的细化,文中提出对综合能源系统(IES)进行电-氢-氧-甲烷-二氧化碳和虚拟二氧化碳等P2G过程的定性定量建模,以及对风-光-电动汽车-负荷等随机源荷进行时空聚类以深度挖掘IES氢源碳源潜力的CCUS设备容量规划模型。以阶梯正负碳交易、弃风弃光惩罚和年设备投资成本等的年综合成本最低为目标,以碳捕集、碳存储和甲烷化等CCUS设备功率容量限值为全局变量对电气平衡和能量耦合进行二次约束,经过混合整数线性化处理后利用Cplex求解。算例分析表明,源荷时空聚类可在典型日场景缩减时保留IES廉价碳源氢源特征,合理规划后的CCUS设备可兼具弃风消纳和碳减排功能,使P2G制取的天然气更具市场竞争力。

International experience of carbon neutrality and prospects of key technologies:Lessons for China

Carbon neutrality(or climate neutrality)has been a global consensus,and international experience exchange is essential.Given the differences in the degree of social development,resource endowment and technological level,each country should build a carbon-neutral plan based on its national conditions.Compared with other major developed countries(e.g.,Germany,the United States and Japan),China's carbon neutrality has much bigger challenges,including a heavy and time-pressured carbon reduction task and the current energy structure that is over-dependent on fossil fuels.Here we provide a comprehensive review of the status and prospects of the key technologies for low-carbon,near-zero carbon,and negative carbon emissions.Technological innovations associated with coal,oil-gas and hydrogen industries and their future potential in reducing carbon emissions are particularly explained and assessed.Based on integrated analysis of international experience from the world's major developed countries,in-depth knowledge of the current and future technologies,and China's energy and ecological resources potential,five lessons for the implementation of China's carbon neutrality are proposed:(1)transformation of energy production pattern from a coal-dominated pattern to a diversified renewable energy pattern;(2)renewable power-to-X and large-scale underground energy storage;(3)integration of green hydrogen production,storage,transport and utilization;(4)construction of clean energy systems based on smart sector coupling(ENSYSCO);(5)improvement of ecosystem carbon sinks both in nationwide forest land and potential desert in Northwest China.This paper provides an international perspective for a better understanding of the challenges and opportunities of carbon neutrality in China,and can serve as a theoretical foundation for medium-long term carbon neutral policy formulation.

碳捕集、利用和封存(CCUS)技术发展现状及应用展望

梳理了碳捕集、利用和封存(CCUS)技术各关键环节的发展概况,阐述了全球和我国现阶段CCUS技术应用进展和挑战.结果表明,在当前的经济技术水平下,CCUS项目难以实现成本效益的平衡,因此必须转变思路,将CO_(2)视为一种基础工业原料,加快CO_(2)资源化利用布局.基于此,提出CO_(2)转化利用金字塔模型,通过优化组合高附加值碳基材料、化工利用、生物合成等CO_(2)转化利用路径,形成兼具减排和商业价值的新型碳经济.最后,根据我国未来在能源领域的领先性和电网的灵活度的实际需要,提出了加快我国CCUS技术布局和应用的政策建议,以期助力CCUS技术产业化落地与可持续发展.

Simulation study of supercritical carbon dioxide jet fracturing for carbonate geothermal reservoir based on fluid-thermo-mechanical coupling model

Geothermal energy is a kind of renewable,sustainable and clean energy resource.Geothermal energy is abundant in carbonate reservoirs.However,low matrix permeability limits its exploitation.The super-critical carbon dioxide(SC-CO_(2))jet fracturing is expected to efficiently stimulate the carbonate geothermal reservoirs and achieve the storage of CO_(2) simultaneously.In this paper,we established a transient seepage and fluid-thermo-mechanical coupled model to analyze the impact performance of sc-CO_(2) jet fracturing.The mesh-based parallel code coupling interface was employed to couple the fluid and solid domains by exchanging the data through the mesh interface.The physical properties change of sC-CO_(2) with temperature were considered in the numerical model.Results showed that SC-CO_(2) jet frac-turing is superior to water-jet fracturing with respect to jetting velocity,particle trajectory and pene-trability.Besides,stress distribution on the carbonate rock showed that the tensile and shear failure would more easily occur by SC-CO_(2) jet than that by water jet.Moreover,pressure and temperature control the jet field and seepage field of sC-CO_(2) simultaneously.Increasing the jet temperature can effectively enhance the impingement effect and seepage process by decreasing the viscosity and density of SC-CO_(2).The key findings are expected to provide a theoretical basis and design reference for applying SC-CO_(2) jet fracturing in carbonate geothermal reservoirs.

基于碳排放核算的CCUS源汇匹配和部署研究

针对不同碳源捕集能耗、不同运输地貌和距离的压缩功耗,以及CO_(2)驱不同开发阶段能耗和泄漏的差异,以CCUS项目能耗和泄漏、散逸排放为约束条件,项目周期全流程净减排量最大为优化目标,建立碳减排量核算约束下符合油藏动态开发规律的CCUS源汇匹配方法,可为“双碳”目标下CCUS技术产业布局和项目实施提供决策依据。以中国石油在鄂尔多斯盆地的CCUS产业规划为例,综合考虑现有煤电、煤化工碳源运行和装置服役时限、CO_(2)捕集能耗预测、CO_(2)驱注入倍数与循环气量,以及盆地内煤基工业产业布局规划等限制因素,按2025年、2030年、2040年、2050年和2060年5个阶段完成鄂尔多斯盆地CCUS项目源汇匹配优化和阶段部署,匹配的CCUS/CCS项目群在2025—2060期间累计注入CO_(2)约3.96×10^(8)t(含循环气0.48×10^(8)t),扣除各工艺能耗和泄漏排放后的CO_(2)净减排量可达2.54×10^(8)t,净减排效率约为72.9%。

苏北油区CCUS-EOR项目全成本经济评价体系研究

将CO_(2)捕集、利用与封存(CCUS)技术与提高原油采收率(EOR)技术相结合,将捕集的CO_(2)注入地下驱油,在提高采收率的同时实现碳封存。CCUS-EOR项目的完整流程包括捕集压缩、运输、驱油、回注等多个环节。本文将CCUS-EOR全流程视为一个整体,通过剖析CO_(2)驱与常规水驱开发成本构成差异,建立适宜的CCUS-EOR项目全成本经济评价体系,确定捕集成本、运输成本、驱油成本的取值依据,推导出考虑碳减排收益的盈亏平衡模型,满足CCUS-EOR项目快速评价、辅助决策需求。

面向碳中和的CCUS政策研究

中国“双碳”战略目标的提出使得碳捕集、利用与封存(Carbon Capture,Utilization,and Storage,CCUS)技术成为实现化石能源低碳化利用的关键方法,也是支撑碳中和目标的重要手段。在当前由工业示范阶段向商业应用阶段发展的关键时期,技术创新、项目运营、市场发展和政策制定之间存在割裂问题,限制了CCUS技术规模化部署和产业化发展。因此,建立包括规范性支撑体系和各种政策工具在内的政策体系对于CCUS的发展至关重要。围绕当前碳达峰、碳中和面临的新形势,梳理了CCUS领域政策机制研究的最新成果,讨论了美国、英国、澳大利亚、欧盟等主要国家和地区在促进CCUS发展方面所采用的不同类型的政策工具,并分析了宏观支持政策、行政命令政策、资金激励政策和市场机制政策之间的协同作用效果。最后,结合CCUS发展面临的机遇与挑战,提出了关于中国CCUS产业化发展的激励政策设计建议。研究结果可为应对气候变化和“双碳”目标的相关政策制定者和科研工作者提供有益的启发和参考。

中美CCUS技术发展与政策体系对比

碳捕集、利用与封存(CCUS)技术是指能够将二氧化碳从能源利用、工业生产等排放源或生物质利用尾气、空气中等不同碳源捕集分离,并输送到适宜的场地加以利用或封存,最终实现二氧化碳减排的技术组合,是各国实现气候目标所不可或缺的重要技术支撑。碳达峰碳中和目标提出后,中国已初步建立碳达峰碳中和相关政策体系,积极推进各行业深度技术创新和系统性变革。CCUS技术既是可以实现化石能源的大规模低碳利用的重要技术选择,又是推进钢铁、水泥等难减排工业行业深度脱碳的可行技术方案,更是未来抵消剩余温室气体排放的托底技术手段。为实现中美两国气候目标,两国最终需要通过CCUS技术实现每年数十亿吨的二氧化碳减排量。美国是全球CCUS技术的先行者之一,在政策法规制定、基础设施建设、大规模工程运营方面具有相对优势。为支撑净零排放目标,美国通过一系列卓有成效的财税激励机制加快了CCUS项目大规模部署进展,相关经验值得借鉴。文章通过比较中美两国在CCUS技术领域的潜力需求、政策法规、研发示范等情况,为我国CCUS技术及配套政策环境发展提供参考,并提出中美在CCUS技术领域开展合作的潜在方向。