二氧化碳捕集分离技术综述

二氧化碳捕集技术大致可分为:燃烧前脱除二氧化碳,如整体煤气化联合循环发电系统(IGCC);燃烧中脱除二氧化碳,如化学链燃烧(CLC)和富氧燃烧(Oxyfuel Combustion);燃烧后烟气中二氧化碳捕集与封存(CCS)。本文在现有基础上综述了新型二氧化碳捕集技术,包括离子液体吸收、金属有机骨架化合物吸附、电化学法等。     

波塞特葡萄酒采用去氧技术的PET包装瓶

空气产品公司致力于为能源工业及化学公司和其他能源密集型行业提供大规模二氧化碳捕集或二氧化碳减排技术。该公司正在采用3项技术使发电厂减少或避免二氧化碳排放，包括后燃烧洗涤系统，电厂排放娴囱的终端捕集二氧化碳技术，以及涉及二氧化碳捕集和分离的预燃烧气化技术。     

太阳能辅助碳捕集:适用技术、性能比较和发展趋势

太阳能辅助碳捕集系统集合了提高能源转换效率、使用可再生能源和二氧化碳捕集与封存3种应对气候变化挑战的技术,是跨学科研究中的新兴领域。本文综述了燃烧后、燃烧前和富氧燃烧碳捕集技术中太阳能辅助碳捕集的研究现状,并从分离方式、分离技术和太阳能辅助方式等方面进行了深入分析。其后从分离理想最小功和分离热力学效率对不同二氧化碳的分离技术进行了性能评价。最后对太阳能辅助碳捕集技术的发展趋势进行了梳理,分离模型方法不再适合光催化等第二代碳捕集技术,碳捕集理论研究的框架有待拓展;太阳能辅助环节将从碳捕集过程逐步扩展到运输和储存过程;太阳能辅助形式中的梯级利用更加灵活多样。该新兴技术在能效基础理论、太阳能梯级利用和高效集成三方面亟待突破。     

提高IGCC合成气水合物形成速度及提纯其中H2的工艺

引言 化石燃料燃烧释放的二氧化碳气体已经被证明是导致全球气温升高和气候变化的主要温室气体.火力发电厂制造的二氧化碳气体约占全球每年产生的二氧化碳的总量的1/3.二氧化碳分离主要有3种途径:燃前除碳(pre-combustion de-carbonization),富氧燃烧以及燃后工序中从烟气中分离二氧化碳.二氧化碳气在电厂中的分离捕集可以在烟气中(燃后捕集)和IGCC工艺(燃前捕集)中实现.     

碱金属基固体材料捕集燃煤电站二氧化碳研究进展

二氧化碳的捕获、利用和储存最近收到了极大的关注,被公认为是一种减少化石燃料燃烧中二氧化碳排放的重要选择。相对于传统的醇胺法,碱金属基固体材料捕捉燃煤电站烟气中CO_2被认为是一种有前景的二氧化碳捕集技术。本文将从捕集原理,碱金属基固体材料研究进展,工程化进展三个方面介绍该项技术。     

催化裂化实现CO2捕集的技术探讨

论述了4种碳捕集方法,即燃烧前捕集、氧燃烧捕集、燃烧后捕集和化学链燃烧捕集,得出氧燃烧捕集是比较适合于催化裂化实现CO2捕集的技术。同时,讨论了氧燃烧对再生器效率、旋风分离器效率以及取热器负荷的影响。     

碳捕集技术研究进展

碳捕集技术对于减少大气中的CO_2浓度显得至关重要,尤其是对于排放大量温室气体的火力发电厂和工业源的CO_2捕集。本文主要概述了CO_2的燃烧前捕集、富氧燃烧捕集、燃烧后捕集这3种主要的碳捕集技术的研究现状,并结合当前正在研究的碳捕集技术,提出了碳捕集技术未来可能的发展方向。     

二氧化碳捕集技术研究进展

结合目前二氧化碳捕集技术的发展现状,对二氧化碳捕集方法进行深入研究,在此基础上,对二氧化碳捕集机理进行深入分析,为推动二氧化碳捕集技术的进一步发展奠定基础。     

燃气-蒸汽联合循环电厂烟气CO_2捕集与干冰联产技术的研究

烟气二氧化碳捕集与利用技术是火电厂碳减排的重要手段。本文对烟气二氧化碳捕集技术进行了介绍,并选用基于混合胺溶液的化学吸收法,设计了一种用于燃气-蒸汽联合循环电厂的烟气二氧化碳捕集与干冰联产技术工艺,可实现烟气中二氧化碳捕集,并用于食品级和工业级干冰的生产。     

燃烧后CO_2捕集技术与工程进展

当前主流CO2捕集技术有3种,分别是燃烧后、燃烧前和富氧燃烧CO2捕集技术。本文主要介绍了燃烧后脱碳技术的工艺流程以及优缺点,总结了国内外典型CO2捕集项目及其进展情况,最后结合目前CO2捕集发展状况提出了未来碳捕集技术发展方向建议。     

二氧化碳捕集技术的现状与最新进展

CO_2的捕集是缓解温室效应的有效手段,可分为燃烧前分离、发电技术的改进、燃烧后分离。IGCC、化学链燃烧技术、富氧燃烧等技术的主要目的是富集CO_2,降低分离成本。燃烧后分离技术较成熟,主要介绍了其中的吸收分离法、吸附分离法、膜法的原理、优缺点及最新进展。     

Carbon capture from stationary power generation sources: A review of the current status of the technologies

The world will need greatly increased energy supply in the future for sustained economic growth, but the related CO₂ emissions and the resulting climate changes are becoming major concerns. CO₂ is one of the most important greenhouse gases that is said to be responsible for approximately 60% of the global warming. Along with improvement of energy efficiency and increased use of renewable energy sources, carbon capture and sequestration (CCS) is expected to play a major role in curbing the greenhouse gas emissions on a global scale. This article reviews the various options and technologies for CO₂ capture, specifically for stationary power generation sources. Many options exist for carbon dioxide capture from such sources, which vary with power plant types, and include post-combustion capture, pre-combustion capture, oxy fuel combustion capture, and chemical looping combustion capture. Various carbon dioxide separation technologies can be utilized with these options, such as chemical absorption, physical absorption, adsorption, and membrane separation. Most of these capture technologies are still at early stages of development. Recent progress and remaining challenges for the various CO₂ capture options and technologies are reviewed in terms of capacity, selectivity, stability, energy requirements, etc. Hybrid and modified systems hold huge future potentials, but significant progress is required in materials synthesis and stability, and implementations of these systems on demonstration plants are needed. Improvements and progress made through applications of process systems engineering concepts and tools are highlighted and current gaps in the knowledge are also mentioned. Finally, some recommendations are made for future research directions.     

Syngas combustion in a 500 Wth Chemical-Looping Combustion system using an impregnated Cu-based oxygen carrier

Chemical-Looping Combustion (CLC) is an emerging technology for CO₂ capture because separation of this gas from the other flue gas components is inherent to the process and thus no energy is expended for the separation. For its use with coal as fuel in power plants, a process integrated by coal gasification and CLC would have important advantages for CO₂ capture. This paper presents the combustion results obtained with a Cu-based oxygen carrier in a continuous operation CLC plant (500 Wth) using syngas as fuel. For comparison purposes pure H₂ and CO were also used. Tests were performed at two temperatures (1073 and 1153 K), different solid circulation rates and power inputs. Full syngas combustion was reached at 1073 K working at f higher than 1.5. The syngas composition had small effect on the combustion efficiency. This result seems to indicate that the water gas shift reaction acts as an intermediate step in the global combustion reaction of the syngas. The results obtained after 40 h of operation showed that the copper-based oxygen carrier prepared by impregnation could be used in a CLC plant for syngas combustion without operational problems such as carbon deposition, attrition, or agglomeration.     

碳捕捉与封存技术研究

碳捕捉与封存技术指将二氧化碳从工业生产过程中最大限度分离出来,输送到指定地点封存,并与大气长期隔绝过程。CO2捕捉技术有燃烧前捕捉、燃烧后捕捉和富氧燃烧捕捉三类,且各具优缺点和适用情况,实际应用应根据具体情况具体分析;CO2常用输送方式有管道输送、船舶输送和罐车输送三类,对于大规模长距离应首选管道输送,长距离海洋输送应首选船舶输送,对于短距离小输量应首选罐车输送;CO2封存一般有四大类封存方式:海洋封存、矿石碳化、地质封存和工业利用,其中地质封存对减排贡献最大,矿石碳化和工业利用贡献有限,海洋封存仍处研究之中。     

The latest development on amine functionalized solid adsorbents for post-combustion CO2 capture:Analysis review

Global warming and associated global climate change have led to serious efforts towards reducing CO2 emissions through the CO2 capture from the major emission sources.CO2 capture using the amine func-tionalized adsorbents is regard as a direct and effective way to reducing CO2 emissions due to their large CO2 adsorption amount,excellent CO2 adsorption selectivity and lower energy requirements for adsor-bent regeneration.Moreover,large number of achievements on the amine functionalized solid adsorbent have been recorded for the enhanced CO2 capture in the past few years.In view of this,we review and analyze the recent advances in amine functionalized solid adsorbents prepared with different supporting materials including mesoporous silica,zeolite,porous carbon materials,metal organic frameworks(MOF)and other composite porous materials.In addition,amine functionalized solid adsorbents derived from waste resources are also reviewed because of the large number demand for cost-effective carbon dioxide adsorbents and the processing needs of waste resources.Considering the importance of the stability of the adsorbent in practical applications,advanced research in the capture cycle stability has also been summarized and analyzed.Finally,we summarize the review and offer the recommendations for the development of amine-based solid adsorbents for carbon dioxide capture.     

无机固体吸附剂在二氧化碳捕集应用中的研究进展

随着全球气候变暖,二氧化碳的捕集、利用和封存（CCUS）逐渐成为科学界和工业界的研究热点。CCUS的关键是选择性地从气体混合物中捕集二氧化碳。目前二氧化碳捕集技术包括化学吸收、膜分离、吸附和低温分离等。吸附法是利用吸附剂对不同气体的吸附能力差异来进行二氧化碳捕集。综述了分子筛、介孔二氧化硅、黏土及多孔碳等无机固体吸附剂在二氧化碳捕集应用中的研究进展。对比了不同改性方法对吸附剂吸附二氧化碳性能的影响。从应用角度来看,分子筛、介孔二氧化硅、黏土具有潜在的成本效益,但仍需在工程设计开发方面得以进一步发展,以适用于不同应用需求的二氧化碳捕集。     

温室气体CO2的捕集和分离--分离技术面临的挑战与机遇

介绍了采用溶剂吸收、膜分离和变压吸附等方法捕集和分离温室气体CO2的最新进展,并对技术发展动向进行了讨论。     

燃煤电厂C02捕集技术与经济分析

随着全球CO2排放量的逐年递增,气候变化和CO2减排问题已经引起了世界性的关注。电厂CO2捕集技术研究也成了热点。主要对国内外燃煤电厂CO2捕集技术与经济分析作了综述,并对我国现运行的燃煤电厂碳捕集示范装置进行简要的技术与经济分析。     

燃煤电厂烟气中二氧化碳的减排技术

由于CO2等温室气体引发的温室效应对全球生态环境和社会经济发展造成了显著影响,使得CO2减排受到了国际社会的密切关注。文章针对CO2的集中排放源,介绍燃煤电厂烟气中CO2减排技术路线和目前国际上常用的CO2捕集分离技术,最后分析和展望CO2捕集分离技术的发展前景。     

Pursuit of efficient CO2-capture membranes: graphene oxide- and MOF-integrated Ultrason® membranes

Polymer Bulletin - High-performance mixed-matrix membranes (MMMs) were developed to help control the global warming by capturing and sequestrating carbon dioxide (CO2) from post combustion flue gas...