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Carbon monoxide production using a steel mill gas in a combined chemical looping process

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Journal of Energy Chemistry 2022年第5期31卷 811-825页

作者： Varun Singh Lukas C.Buelens Hilde poelman Mark Saeys Guy B.Marin Vladimir V.Galvita Laboratory for Chemical Technology Technologiepark 125B-9052 GhentBelgium

Up to 9% of the global CO_(2) emissions come from the iron and steel industry. Here, a combined chemical looping process to produce CO, a building block for the chemical industry, from the CO_(2) -rich blast furnace gas of a steel mill is proposed. This cyclic process can make use of abundant Fe_(3)O_(4) and CaO as solid oxygen and CO_(2) carriers at atmospheric pressure. A proof of concept was obtained in a laboratory-scale fixed bed reactor with synthetic blast furnace gas and Fe_(3)O_(4) /CaO = 0.6 kg/kg. CO production from the proposed process was investigated at both isothermal conditions(1023 K) and upon imposing a temperature program from 1023 to 1148 K. The experimental results were compared using performance indicators such as CO yield, CO space time yield, carbon recovery of the process, fuel utilisation, and solids’ *** temperature-programmed CO production resulted in a CO yield of 0.056 ± 0.002 mol per mol of synthetic blast furnace gas at an average CO space time yield of 7.6 mmol kgFe^(-1) s^(-1) over 10 cycles, carbon recovery of 48% ± 1%, fuel utilisation of 23% ± 2%, and an average calcium oxide and iron oxide utilisation of 22% ± 1% and 11% ± 1%. These experimental performance indicators for the temperature-programmed CO production were consistently better than those of the isothermal implementation mode by 20% to 35%. Over 10 consecutive process cycles, no significant losses in CO yield were observed in either implementation mode. Process simulation was carried out for 1 million metric tonnes per year of equivalent CO_(2) emissions from the blast furnace gas of a steel mill to analyse the exergy losses in both modes of operation. Comparison of the exergy efficiency of the temperature-programmed process to the isothermal process showed that the former is more efficient because of the higher CO concentration achievable,despite 20% higher exergy losses caused by heat transfer required to change temperature.

关键词： Steel industry CO_(2)capture Calcium oxide CO_(2)sorbent Reverse water gas shift Circular economy Process intensification

A strategy for enhancing luminescence thermometry via Ta^(5+)-triggered K_(0.5)Na_(0.5)NbO_(3):Er^(3+)transparent ceramics

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Journal of Materiomics 2024年第5期10卷 984-994页

作者： Quan Zhang Zetian Yang Mingyuan Wang Yang Liu Shuangying Lei Laihui Luo Dirk poelman Key Laboratory of MEMS of Ministry of Education School of Electrical Science and EngineeringSoutheast UniversityNanjing210096China LumiLab Department of Solid StateSciencesGhent UniversityKrijgslaan 281-S1GhentB-9000Belgium School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing210094China Department of Microelectronic Science and Engineering Ningbo UniversityNingbo315211China

Luminescence thermometry is a reliable approach for remote thermal sensing,and extensive studies have been devoted to designing a luminescence thermometer with heightened thermal ***,we report a promising luminescence thermometric material,Ta^(5+)-substituted K_(0.5)Na_(0.5)NbO_(3):0.003Er^(3+)transparent ferroelectric *** temperature sensing sensitivity is significantly improved by adjusting the concentration of Ta^(5+)in the ***,utilizing the fluorescence intensity ratio from the 2H_(11/2) and 4S_(3/2) thermally coupled states of Er^(3+)as a detecting signal within the temperature range of 273–543 K,an optimal maximum absolute sensitivity of 0.0058 K–1 and relative sensitivity of 0.0158 K–1 are achieved for K_(0.5)Na_(0.5)NbO_(3):0.65Ta^(5+)/0.003Er^(3+).Simultaneously,as the concentration of Ta5+increase,a unique evolution of structural phase transitions is observed from orthorhombic to tetragonal and then to *** is accompanied by an improvement in luminescence temperature sensing properties,and the best sensitivity is demonstrated in the cubic-phase ***,a huge change in infrared luminescence properties as a function of temperature is found around the structure transition temperature of the *** results indicate a promising potential for achieving highly sensitive thermometry or monitoring phase structure transitions through luminescence thermometry behavior in the K_(0.5)Na_(0.5)NbO_(3) host.

关键词： Transparent ceramics Temperature sensing Phase transition Upconversion emission

Photoreceptor-Mediated Bending towards UV-B in Arabidopsis

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Molecular Plant 2014年第6期7卷 1041-1052页

作者： Filip Vandenbussche Kimberley Tilbrook Ana Carolina Fierro Kathleen Marchal Dirk poelman Dominique Van Der Straeten Roman UIm boratory of Functional Plant Biology Department of Physiology Faculty of Sciences Ghent University B-9000 Ghent Belgium Department of Botany and Plant Biology Sciences III University of Geneva CH-1211 Geneva 4 Switzerland Department of Microbial and Molecular Systems Faculty of Bioscience Engineering KU Leuven B-3001 Heverlee Belgium Department of Plant Biotechnology and Bioinformatics Faculty of Sciences Ghent University B-9000 Ghent Belgium Department of Information Technology IMinds Faculty of Sciences Ghent University B-go00 Ghent Belgium Lumilab Department of Solid State Sciences Faculty of Sciences Ghent University B-9000 Ghent Belgium

Plants reorient their growth towards light to optimize photosynthetic light capture--a process known as phototropism. Phototropins are the photoreceptors essential for phototropic growth towards blue and ultraviolet-A （UV- A） light. Here we detail a phototropic response towards UV-B in etiolated Arabidopsis seedlings. We report that early differential growth is mediated by phototropins but clear phototropic bending to UV-B is maintained in photl phot2 double mutants. We further show that this phototropin-independent phototropic response to UV-B requires the UVoB photoreceptor UVR8. Broad UV-B-mediated repression of auxin-responsive genes suggests that UVR8 regulates directional bending by affecting auxin signaling. Kinetic analysis shows that UVR8-dependent directional bending occurs later than the phototropin response. We conclude that plants may use the full short-wavelength spectrum of sunlight to efficiently reorient photosynthetic tissue with incoming light.

关键词： phototropism UV-B auxin UVR8 Arabidopsis,

虚拟极化自适应——一个通过极化-向量处理来提高雷达发现目标能力的方法

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系统工程与电子技术 1982年第12期 41-52页

作者： A.J.poelman ,张以森

利用本文所述的抑制杂波与干扰的方法,可以极大地提高雷达接收机输入端的平均目标信号功率与平均无用信号功率之比。幅射的极化状态、目标后向散射场以及干扰场的作用,在本文称作收发天线极化状态虚拟自适应的技术中,都得到了考虑。这... 详细信息

利用本文所述的抑制杂波与干扰的方法,可以极大地提高雷达接收机输入端的平均目标信号功率与平均无用信号功率之比。幅射的极化状态、目标后向散射场以及干扰场的作用,在本文称作收发天线极化状态虚拟自适应的技术中,都得到了考虑。这项技术可以用来补充频域与空域中的滤波技术。本文对于逻辑积型式的多凹口极化抑制滤波器的潜在优点给予了特别的注意。当要抑制的无用信号的极化状态不确定时,就可以应用这种滤波器。

关键词：杂波抑制无用信号逻辑积合取词极化自适应极化状态后向散射场传感器雷达电子设备滤波器分辨单元散射矩阵正交极化波回波功率凹口天线极化

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有机界面

装饰 2021年第8期 35-41页

作者： [荷]维姆·波尔曼 [荷]埃里克·坦普尔曼汪芸(翻译) 代尔夫特理工大学中国美术学院

本文讨论了响应式材料取代传统界面对产品设计师造成的影响。论文分为三个部分:第一部分提出了关于人机接口新范式的理论框架,第二部分分析了新材料技术为交互风格提供的机会,第三部分讨论了有关设计实践的意义。结论是:基于颜色、形式... 详细信息

本文讨论了响应式材料取代传统界面对产品设计师造成的影响。论文分为三个部分:第一部分提出了关于人机接口新范式的理论框架,第二部分分析了新材料技术为交互风格提供的机会,第三部分讨论了有关设计实践的意义。结论是:基于颜色、形式、纹理等变化的产品语义设计将成为产品开发的一个重要方面。

关键词：语义学智能材料有机界面人机交互

采用水基前驱溶液喷墨印刷制备光催化活性TiO_2薄膜

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中国印刷与包装研究 2012年第5期4卷 67-71页

作者： ARIN Melis LOMMENS Petra AVCI Nursen HOPKINS Simon C BUYSSER Klaartje De ARABATZIS Ioannis M FASAKI Ioanna poelman Dirk DRIESSCHE Isabel Van 何文 SCRIPTS Department of Inorganic and Physical Chemistry Ghent University Krijgslaan 281 (S3) 9000 Ghent Belgium LUMILAB Department of Solid State Sciences Ghent University Krijgslaan 281 (S1) 9000 Ghent Belgium Department of Materials Science and Metallurg University of Cambridge Pembroke Street Cambridge CB2 3QZ United Kingdom NanoPhos SA PO Box 519 Science & Technology Park of Lavriou Lavrio 19500 Attica Greece

近年来,作为一种高能量带隙半导体,二氧化钛(TiO_2)由于在紫外光照射下具有良好的光催化活性,已引起科研人员的广泛关注。由于TiO_2无色透明,具有广泛的应用前景,如薄的TiO_2涂层可用于创建自清洁、防雾、超亲水表面。同时,也能用于太... 详细信息

近年来,作为一种高能量带隙半导体,二氧化钛(TiO_2)由于在紫外光照射下具有良好的光催化活性,已引起科研人员的广泛关注。由于TiO_2无色透明,具有广泛的应用前景,如薄的TiO_2涂层可用于创建自清洁、防雾、超亲水表面。同时,也能用于太阳能电池等光电子行业。

关键词： TiO2 光催化喷墨印刷活性薄膜制备溶液光电子行业

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聚酯表面的生物技术改性

国际纺织导报 2011年第2期39卷 22-23,27页

作者： V. A. Nierstrasz L．V．Langenhove P．Kiekens I．Donelli G．Freddi P．Smet D．poelman 喻盈捷（译）行兰（校） Ghent大学纺织系比利时丝绸研究所意大利根特大学LumiLab比利时不详

合成纤维是纺织工业的重要组成部分。合成纤维的缺点是其亲水度低,PET纤维特别疏水,这影响纤维的加工性和功能性。比较新颖、有前途、可供选择的方法是酶用于合成纤维的表面改性。已经报道,用酶水解酯键,从而提高聚酯的亲水度。这一促... 详细信息

合成纤维是纺织工业的重要组成部分。合成纤维的缺点是其亲水度低,PET纤维特别疏水,这影响纤维的加工性和功能性。比较新颖、有前途、可供选择的方法是酶用于合成纤维的表面改性。已经报道,用酶水解酯键,从而提高聚酯的亲水度。这一促进功能化的过程,目标是用现代的生物技术使PET纺织材料功能化。结果将形成新的特定知识和技术,产生用生物技术改性的纺织材料,从而有助于向生物型经济转变。

关键词：聚酯表面酶生物技术改性功能化