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基于一步法制备超高PEO负载的亲 CO<sub>2sub>气体分离膜用于高效碳 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CO<sub>2sub>含量,膜技术被认为是一种有前景的碳策略,其中亲CO<sub>2sub>分离膜已经展示出显著的应用潜力,特别是在CO<sub>2sub>/轻质气体分离方面。以聚环氧乙烷(PEO)为代表的CO<sub>2sub>亲和材料,因其与CO<sub>2sub>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CO<sub>2sub>渗透系数和气体选择性。本研究同时改善了全聚合物膜的机械性能和气体分离性能,在工业碳和气体净化领域展现出显著潜力。

关键词: 膜分离     气体分离     CO<sub>2sub>     CO<sub>2sub>分离膜     聚环氧乙烷    

聚乙烯胺促进传递膜用于燃烧后二氧化碳——从材料到工艺的挑战和前景 Perspective

何雪忠

《工程(英文)》 2021年 第7卷 第1期   页码 124-131 doi: 10.1016/j.eng.2020.11.001

摘要:

由于气体分离膜具有高能效、相对较低的成本和环境影响,通过气体分离膜二氧化碳(CO<sub在过去的十年中,人们开发了基于聚乙烯胺(PVAm)的促进传递(FT)膜来CO<sub>2sub>。本文讨论了聚乙烯胺促进传递膜应用于发电厂和水泥厂的燃烧后CO<sub>2sub>从材料到工艺的挑战。我们可以基于先前中试示范中获得的经验来指导设计其他类型的膜CO<sub>2sub>。我们发现单位CO<sub>2sub>的集成本在很大程度上取决于所需的CO<sub>2sub>率,在50%的中等CO<sub>2sub>率下,每吨CO<sub>2sub>的成本为因此,我们发现FT膜系统对于部分CO<sub>2sub>更具竞争力。

关键词: 促进传递膜     烟道气排放     中空纤维     二氧化碳     过程模拟    

单乙醇胺碳工艺大规模工业化应用:提高非平衡级速率模型的预测精度

罗小波,Wang Meihong

《工程(英文)》 2017年 第3卷 第2期   页码 232-243 doi: 10.1016/J.ENG.2017.02.001

摘要:

对于减少化石能源发电厂和其他能源密集型过程的人为二氧化碳(CO<sub>2sub>) 的排放,碳和储存(CCS)技术将发挥至关重要的作用。然而, 由于装备CO<sub>2sub>集装置而导致的成本增加是其大规模工业化应用的主要障碍。本文论述了关于通过升级参数和多级模型验证来开发一个更精确的基于乙醇胺碳过程的非平衡级速率模型。本文首先分析了该过程速率模型的建模框架。采用Aspen Plus® 软件开发此过程的稳态模型,并且在三个模拟阶段对较宽范围的压力,温度和CO<sub>2sub> 载荷进行了模型验证,包括热力学建模、物性计算和中试规模工艺模拟。随后本文采用这一模型对一个250 MW 的联合循环燃气发电厂的碳工艺过程设计进行了案例研究,并和另一文献进行了对比,本文的设计降低了吸收塔和解析塔的填料高度并减少了CO<sub>2sub>特征热负荷

关键词: 过程模拟     模型验证     单乙醇胺     CO<sub>2sub>     联合燃气发电厂     和存储    

碳配额市场下以乙醇胺溶液进行碳的电厂的优化竞标和运行:基于强化学习的Sarsa时间差分算法的解决

李子昂, 王美宏, 丁正桃

《工程(英文)》 2017年 第3卷 第2期   页码 257-265 doi: 10.1016/J.ENG.2017.02.014

摘要:

对于处在碳配额市场条件下以乙醇胺(MEA) 进行碳的燃煤电厂,本文应用了基于强化学习的Sarsa 时间差分算法为其自行搜寻一种统一的竞标和运行策略。其中,我们引入以下两个限制条件:一是碳的高能耗和电力生产之间的权衡;二是碳排放交易市场中竞得的碳配额数量与电力生产导致的实际碳排放量的近似相等。本文给出了三个案例方便研究。第二个案例中,相互独立设计的运行和竞标策略与统一设计的运行和竞标策略相互比较,以表明加入了随时间变化、市场导向的碳集水平后,Sarsa 算法将有助于电厂决策者获得更高的贴现累计利润。两家电厂设置了相同的发电和二氧化碳设备,但新电厂采用不同的策略获得利润。比较两家电厂的贴现累计利润,结果表明:采用Sarsa 学习算法、找到统一的竞标和运行策略的原电厂会更具竞争力。

关键词: 电厂     燃烧后碳     化学吸收     碳配额市场     决策优化     强化学习    

离岸碳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、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CO<sub>2sub>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CO<sub>2sub>,加压并运输至离岸封存平台后注入海底地质储层中,实现CO<sub>2sub>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CO<sub>2sub>工厂CO<sub>2sub>管道运输、CO<sub>2sub>海底咸水层封存与驱油利用、CO<sub>2sub>化学利用以及其他技术架构。

关键词: 离岸碳、利用与封存;CO2CO2运输;CO2封存;CO2利用;沿海地区;近海沉积盆地    

富氧燃烧技术兼容性设计理念的基础研究与技术挑战 Article

郑楚光, 柳朝晖, 向军, 张立麒, 张世红, 罗聪, 赵永椿

《工程(英文)》 2015年 第1卷 第1期   页码 139-149 doi: 10.15302/J-ENG-2015008

摘要:

富氧燃烧技术是一项颇具潜力的燃煤电站大规模CO<sub>2sub>减排的CO<sub>2sub>与存储(CCS)新技术。以华中科技大学等为代表的中国若干高校和企业已经在该技术从0.4 MW<sub>thsub>到35 MW<sub>thsub>规模的试验平台上取得了较大进展,200 MW<sub>thsub>空气燃烧/富氧燃烧的兼容性设计是示范路线图的重要部分,针对富氧燃烧技术的一些挑战,本文简明阐述了该技术的基础研究与技术创新,包含稳燃、传热、系统运行、矿物演变、腐蚀特性等研究;为了进一步降低碳的成本以及部署大规模应用

关键词: 富氧燃烧     研发与示范     CO<sub>2sub>    

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

《化学科学与工程前沿(英文)》 2016年 第10卷 第2期   页码 273-280 doi: 10.1007/s11705-016-1563-5

摘要: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnation method. The effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanation of CO and CO in a fixed-bed reactor was investigated. The catalysts were characterized by N physisorption, hydrogen temperature-programmed reduction and desorption, carbon dioxide temperature-programmed desorption, X-ray diffraction and high-resolution transmission electron microscopy. The presence of Mn increased the number of CO adsorption sites and inhibited Ni particle agglomeration due to improved Ni dispersion and weakened interactions between the nickel species and the support. The Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperatures (250 to 400 °C). The Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-Ni/Al O catalyst. The co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the CO methanation activity especially at low temperatures but it had little influence on the CO methanation performance. CO methanation was more sensitive to the reaction temperature and the space velocity than the CO methanation in the co-methanation process.

关键词: Mn promotion     nickel catalysts     CO2 methanation     co-methanation of CO and CO2    

以净零排放为目标的封存驱动型CO<sub>2sub>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CO<sub>2sub>封存在油藏地质体中,因此,CO<sub>2sub>驱油与封存被视为降低CO<sub>2sub>排放的重要手段之一。本研究提出了一种新型的CO<sub>2sub>提高采收率(EOR)方法,即封存驱动型CO<sub>2sub>提高采收率,其主要目标是通过在油藏中封存尽可能多的CO<sub>2sub>来实现CO结果表明,DME可提高CO<sub>2sub>在原油中的溶解度,有利于CO<sub>2sub>的溶解封存;可抑制因CO<sub>2sub>的抽提作用造成的原油轻质组分“逃逸&rdquo封存驱动型CO<sub>2sub> EOR方法在提高波及效率方面优于传统的CO<sub>2sub> EOR,尤其是在采油后期更为明显;同时,封存驱动型CO<sub>2sub> EOR比传统的此外,通过封存驱动型CO<sub>2sub> EOR封存的CO<sub>2sub>量远超采出原油燃烧产生的碳排放总量。

关键词: CO<sub>2sub> EOR     CO<sub>2sub>净排放量     二甲醚     封存驱动型CO<sub>2sub> EOR     CO<sub>2sub>封存    

固体氧化物电解池共电解H<sub>2sub>O/CO<sub>2sub>研究进展

范慧,宋世栋,韩敏芳

《中国工程科学》 2013年 第15卷 第2期   页码 107-112

摘要: 本文介绍了固体氧化物电解池的结构特点及其用于H2O/CO2的共电解制备H2CO的工作原理,综述了固体氧化物电解池的组成形式,以及单片电解池和电解池堆用于H2O/CO2共电解反应的国内外研究进展,并阐述了提高固体氧化物电解池共电解效率所亟需解决的问题

关键词: 固体氧化物电解池     H<sub>2sub>O/CO<sub>2sub>共电解     合成气     电解效率     水电解    

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    

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    

Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> 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    

ZnFe<sub>2sub>O<sub>4sub> deposited on BiOCl with exposed (001) and (010) facets for photocatalyticreduction of CO<sub>2sub> in cyclohexanol

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

《化学科学与工程前沿(英文)》 2017年 第11卷 第2期   页码 197-204 doi: 10.1007/s11705-016-1606-y

摘要: ZnFe O -BiOCl composites were prepared by both hydrothermal and direct precipitation processes and the structures and properties of the samples were characterized by various instrumental techniques. The samples were then used as catalysts for the photocatalytic reduction of CO in cyclohexanol under ultraviolet irradiation to give cyclohexanone (CH) and cyclohexyl formate (CF). The photocatalytic CO reduction activities over the hydrothermally prepared ZnFe O -BiOCl composites were higher than those over the directly-precipitated composites. This is because compared to the direct-precipitation sample, the ZnFe O nanoparticles in the hydrothermal sample were smaller and more uniformly distributed on the surface of BiOCl and so more heterojunctions were formed. Higher CF and CH yields were obtained for the pure BiOCl and BiOCl composite samples with more exposed (001) facets than for the samples with more exposed (010) facets. This is due to the higher density of oxygen atoms in the exposed (001) facets, which creates more oxygen vacancies, and thereby improves the separation efficiency of the electron-hole pairs. More importantly, irradiation of the (001) facets with ultraviolet light produces photo-generated electrons which is helpful for the reduction of CO to ·CO . The mechanism for the photocatalytic reduction of CO in cyclohexanol over ZnFe O -BiOCl composites with exposed (001) facets involves electron transfer and carbon radical formation.

关键词: reduction of CO2     cyclohexanol     ZnFe2O4 deposited BiOCl     facet     composite photocatalyst    

太阳能技术对我国未来减排CO<sub>2sub> 的贡献

赵玉文

《中国工程科学》 2003年 第5卷 第4期   页码 38-40

摘要:

在“我国后续能源发展战略研究”基础上对太阳能技术在我国未来减排CO<sub>2sub>中的作用进行了估计,结果表明,在2010年后太阳能技术对CO<sub>2sub

关键词: 太阳能,CO2减排    

A CO and CO

Guoxing Chen, Marc Widenmeyer, Binjie Tang, Louise Kaeswurm, Ling Wang, Armin Feldhoff, Anke Weidenkaff

《化学科学与工程前沿(英文)》 2020年 第14卷 第3期   页码 405-414 doi: 10.1007/s11705-019-1886-0

摘要: A series of novel dense mixed conducting ceramic membranes based on K NiF -type (La Ca ) (Ni Cu )O was successfully prepared through a sol-gel route. Their chemical compatibility, oxygen permeability, CO and CO tolerance, and long-term CO resistance regarding phase composition and crystal structure at different atmospheres were studied. The results show that higher Ca contents in the material lead to the formation of CaCO . A constant oxygen permeation flux of about 0.63 mL·min ·cm at 1173 K through a 0.65 mm thick membrane was measured for (La Ca ) (Ni Cu )O , using either helium or pure CO as sweep gas. Steady oxygen fluxes with no sign of deterioration of this membrane were observed with increasing CO concentration. The membrane showed excellent chemical stability towards CO for more than 1360 h and phase stability in presence of CO for 4 h at high temperature. In addition, this membrane did not deteriorate in a high-energy CO plasma. The present work demonstrates that this (La Ca ) (Ni Cu )O membrane is a promising chemically robust candidate for oxygen separation applications.

关键词: K2NiF4 structure     oxygen permeation membrane     CO2 and CO resistances     CO2 plasma resistance     long-term robustness    

标题 作者 时间 类型 操作

基于一步法制备超高PEO负载的亲 CO<sub>2sub>气体分离膜用于高效碳

朱斌, 赫羴珊, 吴亚东, 李松伟, 邵路

期刊论文

聚乙烯胺促进传递膜用于燃烧后二氧化碳——从材料到工艺的挑战和前景

何雪忠

期刊论文

单乙醇胺碳工艺大规模工业化应用:提高非平衡级速率模型的预测精度

罗小波,Wang Meihong

期刊论文

碳配额市场下以乙醇胺溶液进行碳的电厂的优化竞标和运行:基于强化学习的Sarsa时间差分算法的解决

李子昂, 王美宏, 丁正桃

期刊论文

离岸碳利用与封存技术体系研究

李姜辉,李鹏春,李彦尊,童峰

期刊论文

富氧燃烧技术兼容性设计理念的基础研究与技术挑战

郑楚光, 柳朝晖, 向军, 张立麒, 张世红, 罗聪, 赵永椿

期刊论文

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

期刊论文

以净零排放为目标的封存驱动型CO<sub>2sub>提高采收率方法

刘月亮, 芮振华

期刊论文

固体氧化物电解池共电解H<sub>2sub>O/CO<sub>2sub>研究进展

范慧,宋世栋,韩敏芳

期刊论文

Frontier science and challenges on offshore carbon storage

期刊论文

Reduction potential of the energy penalty for CO capture in CCS

期刊论文

Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> capture at moderate

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

期刊论文

ZnFe<sub>2sub>O<sub>4sub> deposited on BiOCl with exposed (001) and (010) facets for photocatalyticreduction of CO<sub>2sub> in cyclohexanol

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

期刊论文

太阳能技术对我国未来减排CO<sub>2sub> 的贡献

赵玉文

期刊论文

A CO and CO

Guoxing Chen, Marc Widenmeyer, Binjie Tang, Louise Kaeswurm, Ling Wang, Armin Feldhoff, Anke Weidenkaff

期刊论文