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RECENT DEVELOPMENTS IN NON-V/OCD RCER PULPING AND BLEACHING

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RECENT DEVELOPMENTS IN NON-V/OCD RCER PULPING AND BLEACHING

第二届国际非木材纤维制浆造纸会议

作者： BRIAN ORGILL WALTER PICHLER voest-alpine industrieanlagenbau gmbh SINGAPORE voest-alpine industrieanlagenbau gmbh LINZ/AUSTRIA

＜正＞During recent years there has been increasing pressure from environmental protection groups to reduce the emission of chlorinated organic compounds from pulp milk. This has resulted in a considerable amount of research work aimed at reducing and eventually eliminating the use of chlorine and/or chlorine containing bleaching agents. A good start has been made with extended delignification in the cooking process, followed by oxygen delignification, but chlorine containing chemicals are still required for high brightness pulps. To further reduce chlorine consumption, voest-alpine industrieanlagenbau gmbh （VAI） has concentrated their research efforts on the development of bio pre-bleaching, and ozone bleaching, and details of this work will be given in this paper.

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中板坯技术-传统和薄板坯之间的桥梁-原理和操作结果

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连铸 2005年第4期30卷 6-10页

作者： Josef Watzinger Karl Moerwald Anton Wagner voest-alpine industrieanlagenbau gmbh Austria

展示中板坯连铸技术最大程度结合传统和薄板坯生产线优势的能力。由于概念的灵活性,它适合于较大的应用范围。此种设备10年前就已问世,它要求板坯厚度范围为典型的100-150mm,且其已获得可观的市场占有量,尤其是在近几年有显著提高。介... 详细信息

展示中板坯连铸技术最大程度结合传统和薄板坯生产线优势的能力。由于概念的灵活性,它适合于较大的应用范围。此种设备10年前就已问世,它要求板坯厚度范围为典型的100-150mm,且其已获得可观的市场占有量,尤其是在近几年有显著提高。介绍工厂配置的宽广目标,从高质量特殊钢设备的超高生产能力带生产到十分经济的的板生产线。讨论原理设备参数和生产能力,具体开发和设计测量以应对所选板坯厚度,以及铸造和轧制之间直接联系的挑战。介绍不同设备的操作参数,包括最近调试连铸机的运转结果。

关键词：连铸技术操作参数薄板坯原理传统设备参数桥梁生产能力板坯厚度

Improved training framework in a neural network model for disruption prediction and its application on EXL-50

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Plasma Science and Technology 2024年第5期26卷 29-39页

作者：蔡剑青梁云峰 Alexander KNIEPS 齐东凯王二辉向皓明廖亮黄杰阳杰黄佳刘建文 Philipp DREWS 徐帅顾翔高轶琛罗宇李直 the EXL-50 Team Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China Forschungszentrum Jülich gmbh Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Cluster(TEC)Jülich 52425Germany ENN Science and Technology Development co. LtdLangfang 065001People’s Republic of China

A neural network model with a classical annotation method has been used on the EXL-50tokamak to predict impending ***,the results revealed issues of overfitting and overconfidence in predictions caused by inaccurate *** mitigate these issues,an improved training framework has been *** this approach,soft labels from previous training serve as teachers to supervise the further learning process;this has lead to a significant improvement in predictive model ***,this enhancement is primarily attributed to the coupling effect of the soft labels and correction *** improved training framework introduces an instance-specific label smoothing method,which reflects a more nuanced model assessment on the likelihood of a *** presents a possible solution to effectively address the challenges associated with accurate labeling across different machines.

关键词： neural network disruption soft label EXL-50 tokamak

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LD转炉吹炼终点的动态控制

LD转炉吹炼终点的动态控制

1999中国钢铁年会

作者： O.G.Sickert F.Mittermayr W.Pirklbauer 孙彦辉 EKO-Stahl gmbh voest-alpine industrieanlagenbau gmbh voest-alpine industrieanlagenbau gmbh

EKO转炉炼钢厂有 2×240 t转炉,实行二吹一操作模式。 1998年夏天,在两台转炉上的操作系统中,装入一个废气连续分析系统（LOMAS系统）并投入运行。在EKO厂与VAI的合作工程中,在用于LD转炉炼钢吹炼终点确定的废气分析系统中,采用了动态... 详细信息

EKO转炉炼钢厂有 2×240 t转炉,实行二吹一操作模式。 1998年夏天,在两台转炉上的操作系统中,装入一个废气连续分析系统（LOMAS系统）并投入运行。在EKO厂与VAI的合作工程中,在用于LD转炉炼钢吹炼终点确定的废气分析系统中,采用了动态工艺模型“DYNAcoN”。1998年10月开始应用这个模型,并在以后的几个月内做了大量的综合性试验工作。这种动态模型的主要特征是在吹炼过程的最后 2 min内（倒计时）,依据吹炼终点目标碳含量连续地决定吹炼时间。试验表明,试验初期目标碳含量波动在±0.005％的范围内,终点碳的命中率大约为80％。将要讨论达到这种命中率的边界条件以及可能的改进措施。另外还要给出通过动态控制吹炼终点而获得的利润,主要在渣铁、氧活度和铝消耗几个方面。

关键词：转炉吹炼终点动态工艺模型吹炼终点

co_(2)capture costs of chemical looping combustion of biomass:A comparison of natural and synthetic oxygen carrier

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Journal of Energy Chemistry 2024年第5期92卷 296-310页

作者： Benjamin Fleiß Juraj Priscak Martin Hammerschmid Josef Fuchs Stefan Müller Hermann Hofbauer Institute of Chemical Environmental and Bioscience EngineeringTU WienVienna1060 ViennaAustria BEST–Bioenergy and Sustainable Technologies gmbh Graz8010 StyriaAustria

Chemical looping combustion has the potential to be an efficient and low-cost technology capable of contributing to the reduction of the atmospheric concentration of co_(2) in order to reach the 1.5/2°C goal and mitigate climate *** this process,a metal oxide is used as oxygen carrier in a dual fluidized bed to generate clean co_(2) via combustion of *** commonly,natural ores or synthetic materials are used as oxygen carrier whereas both must meet special requirements for the conversion of solid *** oxygen carriers are characterized by higher reactivity at the expense of higher costs versus the lower-cost natural *** determine the viability of both possibilities,a techno-economic comparison of a synthetic material based on manganese,iron,and copper to the natural ore ilmenite was *** synthetic oxygen carrier was characterized and tested in a pilot plant,where high combustion efficiencies up to 98.4%and carbon capture rates up to 98.5%were *** techno-economic assessment resulted in co_(2) capture costs of 75 and 40€/tco_(2) for the synthetic and natural ore route respectively,whereas a sensitivity analysis showed the high impact of production costs and attrition rates of the synthetic *** synthetic oxygen carrier could break even with the natural ore in case of lower production costs and attrition rates,which could be reached by adapting the production process and recycling *** comparison to state-of-the-art technologies,it is demonstrated that both routes are viable and the capture cost of co_(2) could be reduced by implementing the chemical looping combustion technology.

关键词： Chemical looping combustion BECCS Techno-economic assessment co_(2)capture costs Oxygen carrier development Synthetic materials Ilmenite

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无弹性物质参与的密封是未来的趋势

流程工业 2024年第4期 14-17页

作者： Harry Jost Anja Quattelbaum Matthias Dörr NEUMO gmbh+co.KG

即将实施的PFAS(全氟和多氟烷基化合物)禁令以及更严格的TA Luft(空气清洁技术标准)排放限值,是当前困扰着化工和生命科学行业从业者的两大热门话题。这使得管道连接如何能够实现安全密封并符合法规要求成为焦点问题。本文描述了制药、... 详细信息

即将实施的PFAS(全氟和多氟烷基化合物)禁令以及更严格的TA Luft(空气清洁技术标准)排放限值,是当前困扰着化工和生命科学行业从业者的两大热门话题。这使得管道连接如何能够实现安全密封并符合法规要求成为焦点问题。本文描述了制药、生物科技、食品和化工及氢能领域在这样的政策环境下所面临的问题,并给出了解决方案。此外,本文还特别介绍了不含弹性密封材料的管道连接件,并强调了无弹性物质参与的密封是未来的趋势。

关键词：连接件密封交叉污染

In situ nanoscale mapping of electrical and catalytic properties

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National Science Review 2024年第07期 65-66页

作者： Christopher S.Kley Helmholtz Young Investigator Group Nanoscale Operando co2 Photo-Electrocatalysis Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Department of Interface Science Fritz Haber Institute of the Max Planck Society

By enabling the conversion of sustainably-derived electrical energy into chemical energy, electrocatalytic reactions are vital for closing the anthropogenic carbon cycle. A wide array of electrocatalytic reactions have gained extensive attention, including hydrogen evolution（HER）, oxygen evolution（OER）, and co2electroreduction（co2RR）.

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Study on Chrome-free Purging Plugs for Steel Ladles

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China's Refractories 2024年第2期33卷 41-47页

作者： Yunpeng ZHOU Wang FENG Shankha CHATTERJEE Andus BUHR Sebastian KLAUS Almatis Qingdao co. Ltd.Qingdao 266510China Almatis Alumina Pvt Ltd. Kolkata 700071India Almatis gmbh Frankfurt 60528Germany

Purging plug refractories in China typically contain around 3 mass% of super-fine chromium oxide in the matrix in order to improve the performance of the purging plugs, primarily, slag corrosion and wear resistance. Alternatives to chromium oxide containing refractories have gained interest due to health concerns related to the formation of soluble chromium compounds over long storage periods of refractory wastes. Super-ground reactive alumina can replace chromium oxide in purging plug refractories and this paper discussed the new reactive alumina E-SY 88 in comparison to chromium oxide in a typical purging plug castable. The mixing behaviour, wet castable properties, as well as cured, dried, and fired properties at different temperatures up to 1 600 ℃ were compared. In addition, the hot modulus of rupture, creep behaviour, thermal shock resistance and slag corrosion resistance were tested. The microstructure after slag corrosion was investigated by SEM. The results prove that E-SY 88 is an economically viable technical alternative to chromium oxide in purging plug refractories.

关键词： purging plug alumina-spinel castable workability chromium-free thermal shock resistance

SOLLAC FOS SUR MER厂2号连铸机由弧形向垂直形结晶器的改造

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SOLLAC FOS SUR MER厂2号连铸机由弧形向垂直形结晶器的改造

1999中国钢铁年会

作者： J.F.Marioton V.Guyot G.Zurita A.Eichinger H.Hodl M.Stiftinger 吴海民 SOLLAC Fos sur Mer France SOLLAC Fos sur Mer France SOLLAC Fos sur Mer France voest-alpine industrieanlagenbau gmbh（VAI） LinzAustria voest-alpine industrieanlagenbau gmbh（VAI） LinzAustria voest-alpine industrieanlagenbau gmbh（VAI） LinzAustria

在SOLLAC的计划方案基础上,VAI和SOLLAC共同开发了一项独特的经济可行的技术方法,用以改造2号两流板坯连铸机（SOLLAC FOS SUR MER厂）,可在尽可能最短停机时间内完成从弧形到立弯型的转换,并能够最大限度的利用现有设备。此项改造计划... 详细信息

在SOLLAC的计划方案基础上,VAI和SOLLAC共同开发了一项独特的经济可行的技术方法,用以改造2号两流板坯连铸机（SOLLAC FOS SUR MER厂）,可在尽可能最短停机时间内完成从弧形到立弯型的转换,并能够最大限度的利用现有设备。此项改造计划的目标是通过优化垂直段长度来增强某些钢种质量以达到汽车外部板和D＆I罐的要求。自从 1998年11月 11日开机以来,SOLLAC已经成功的保证了现代化的两流板坯连铸机稳定生产。仅仅过了九天的停机后,铸机已达到正常产量,其铸坯质量效果也非常今人满意。

关键词：连铸机垂直形结晶器铸坯清洁度改造费用少停机时间短