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

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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Insight study of rare earth elements in PM_(2.5)during five years in a Chinese inland city:Composition

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Journal of Environmental Sciences 2024年第4期138卷 439-449页

作者： Yi-Wen Shen Chang-Xian Zhao Hao Zhao Shuo-Fei Dong Qi Guo Jiao-Jiao Xie Mei-Ling Lv Chun-Gang Yuan Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department ofEnvironmental Science&EngineeringNorth China Electric Power UniversityBaoding 071000China MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China agilent technologies Co.Ltd.(China) Beijing 100102China

The booming development of rare earth industry and the extensive utilization of its products accompanied by urban development have led to the accelerated accumulation of rare earth elements(REEs)as emerging pollutants in atmospheric *** this study,the variation of REEs in PM_(2.5)with urban(a non-mining city)transformation was investigated through five consecutive years of sample *** compositional variability and provenance contribution of REEs in PM_(2.5)were characterized,and the REEs exposure risks of children and adults via inhalation,ingestion and dermal absorption were also *** results showed an increase in the total REEs concentration from 46.46±35.16 mg/kg(2017)to 81.22±38.98 mg/kg(2021)over the five-year period,with Ce and La making the largest *** actual increment of industrial and traffic emission source among the three pollution sources was 1.34 ng/m^(3).Coal combustion source displayed a downward *** was the main exposure pathway for REEs in PM_(2.5)for both children and *** contributed the most to the total intake of REEs in PM_(2.5)among the population,followed by La and *** exposure risks of REEs in PM_(2.5)in the region were relatively low,but the trend of change was of great *** was strongly recommended to strengthen the concern about traffic-related non-exhaust emissions of particulate matter.

关键词： Rare earth elements Exposure risks Pollution sources Traffic-related non-exhaust emissions

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Comprehensive characterization and detection of nut allergens in bakery foods using Q-TOF mass spectrometry and bioinformatics

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Food Quality and Safety 2024年第1期8卷 145-157页

作者： Daokun Xu Haolun Huang Zhen Liu YumeiWang Qinan Liu Xing Jiang JunYang Rui Ling Nanjing Institute for Food and Drug Control NanjingChina State Key Laboratory of Food Science and Technology School of Food Science and TechnologyJiangnan UniversityWuxiChina Demonstration Collaborative Laboratory of Analysis and Detection Technology for Food and Drug Safety Nanjing Institute for Food and Drug Control and Agilent Technologies(China)NanjingChina Collaborative Laboratory for Food Safety Nanjing Institute for Food and Drug Control and SCIEX(China)NanjingChina

Food allergy is a growing health issue worldwide and the demand for sensitive,robust and high-throughput analytical methods is *** recent years,mass spectrometry-based methods have been established for multiple food allergen *** the present study,a novel method was developed for the simultaneous detection of almond,cashew,peanut,and walnut allergens in bakery foods using liquid chromatography–mass *** unique to these four ingredients were extracted,followed by trypsin digestion,quadrupole time-of-flight(Q-TOF)mass spectrometry and bioinformatics *** raw data were processed by de-novo sequencing module plus PEAKS DB(database search)module of the PEAKS software to screen peptides specific to each nut *** thermal stability and uniqueness of these candidate peptides were further verified using triple quadrupole mass spectrometry(QQQ-MS)in multiple reaction monitoring(MRM)*** nut species was represented by four peptides,all of which were validated for label-free quantification(LFQ).Calibration curves were constructed with good linearity and correlation coefficient(r 2)greater than *** limits of detection(LODs)were determined to range from 0.11 to 0.31 mg/kg,and were compared with the reference doses proposed by Voluntary Incidental Trace Allergen Labelling(VITAL).The recoveries of the developed method in incurred bakery food matrices ranged from 72.5%to 92.1%with relative standard deviations(RSD)of<5.2%.The detection of undeclared allergens in commercial bakery food samples confirmed the presence of these *** conclusion,this method provides insight into the qualitative and quantitative detection of trace levels of nut allergens in bakery foods.

关键词： Nut allergen Q-TOF mass spectrometry peptides label-free quantitation bakery foods.

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Microbial electricity-driven anaerobic phenol degradation in bioelectrochemical systems

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Environmental Science and Ecotechnology 2024年第1期17卷 40-47页

作者： Shixiang Dai Falk Harnisch Micjel Chávez Morejòn Nina Sophie Keller Benjamin Korth Carsten Vogt Department of Environmental Microbiology Helmholtz Centre for Environmental Research GmbH-UFZLeipzigGermany Department of Isotope Biogeochemistry Helmholtz Centre for Environmental Research GmbH-UFZLeipzigGermany

Microbial electrochemical technologies have been extensively employed for phenol ***,previous research has yielded inconsistent results,leaving uncertainties regarding the feasibility of phenol degradation under strictly anaerobic conditions using anodes as sole terminal electron *** this study,we employed high-performance liquid chromatography and gas chromatography-mass spectrometry to investigate the anaerobic phenol degradation *** findings provide robust evidence for the purely anaerobic degradation of phenol,as we identified benzoic acid,4-hydroxybenzoic acid,glutaric acid,and other metabolites of this ***,no typical intermediates of the aerobic phenol degradation pathway were ***-chamber reactors(t0.4 V ***)exhibited a phenol removal rate of 3.5±0.2 mg L^(-1) d^(-1),while two-chamber reactors showed 3.6±0.1 and 2.6±0.9 mg L^(-1) d^(-1) at anode potentials of t0.4 and t 0.2 V,*** results also suggest that the reactor configuration certainly influenced the microbial community,presumably leading to different ratios of phenol consumers and microorganisms feeding on degradation products.

关键词： Microbial electroremediation Geobacter Extracellular electron transfer Anaerobic phenol degradation Microbial syntrophy

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Pollution Characteristics and Ecological Impact of Screening Analysis of Fishing Port Sediments from Dalian,North China

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Environment & Health 2024年第10期2卷 702-711页

作者： Haichao Mu Xulin Hou Zilan Wu Jiaojiao Li Wenwen Wang Meiling Lu Xing Liu Ziwei Yao Key Laboratory for Ecological Environment in Coastal Areas Ministry of Ecology and EnvironmentNational Marine Environmental Monitoring CenterDalian 116023China School of Light Industry and Chemical Engineering Dalian Polytechnic UniversityDalian 116034China College of Marine Science and Environment Engineering Dalian Ocean UniversityDalian 116023China agilent technologies(China)Ltd. Inc.Beijing 100102China Laboratory for Ecological Environment in Coastal Areas Ministry of Ecology and EnvironmentNational Marine Environmental Monitoring CenterDalian 116023China

Environmental pollution from synthetic chemical mixtures has significant adverse impacts on marine ***,identifying the main constituents of chemical mixtures that pose ecological threats is challenging due to the necessity of an integrated workflow for comprehensive identification and toxicological prioritization of ***,an all-in-one mass spectrometric strategy integrating target,suspect,and nontarget analysis was used to investigate organic pollutants of concern in fishing port sediments,with 355 pollutants(32 from target analysis,118 from suspect screening and 205 from nontarget analysis)identified in 11 *** chemical classes of polycyclic aromatic hydrocarbons(PAHs),pesticides,and intermediates were the extensively detected chemical *** ecological risks of absolutely quantified pollutants(i.e.,16 parent PAHs,7 organophosphate esters(OPEs),10 pesticides and 4 benzotriazole ultraviolet absorbers)were assessed using toxicity-weighted concentration ranking,with o,p’-DDT being the major *** the toxicological priority index(ToxPi)framework,an extended ranking of all identified pollutants was achieved by combining instrument response and detection frequency,with a priority control list of 15 pollutants obtained,of which benzo[ghi]perylene(BghiP)and p,p’-DDE had the highest risk *** to frequent detection rates and significant environmental risks,routine monitoring of petroleum pollutants is considered *** study presents a general workflow that includes comprehensive identification and prioritization of pollutants,facilitating chemical management and ecological risk assessment.

关键词： fishing port sediments suspect screening nontarget analysis toxicity-weighted concentration ToxPi ecological risk assessment

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Testing and modelling of transient adhesion phenomena in rolling-sliding contacts

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Friction 2024年第5期12卷 1016-1027页

作者： Daniel KVARDA Alexander MEIERHOFER Klaus SIX Faculty of Mechanical Engineering Brno University of TechnologyBrno61669Czech Republic Virtual Vehicle Research gmbh Graz8010Austria

Transient adhesion effects in rolling–sliding contacts influence all aspects of train–track *** is of high importance specifically when these effects result in critically low adhesion,which poses a risk to traction and braking of railway *** study presents a model that can replicate the transient changes of the coefficient of adhesion with tested water and solid particle *** experimental data for the model are measured using a commercial ball-on-disc *** experimental results showed a liquid reservoir in front of the contact area that slowly reduces in *** observation was used in the modelling approach to divide the calculation into two stages where the reservoir is present and when it *** model was able to reproduce the occurrence of low adhesion region seen in experimental results with different particle concentrations.

关键词： coefficient of adhesion tribology transient effects wheel-rail contact

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COMBINED CONTAMINANT AND MULTI-RESIDUE TESTING BY LC/MS/MS FOR THE QUALITY CONTROL OF HERBAL DRUGS USED IN TRADITIONAL CHINESE MEDICINE(TCM)

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World Journal of Traditional Chinese Medicine 2016年第2期 84-85页

作者： Thomas Glauner Morgane Even Tao Bo Andreas Tei Lester Taylor agilent technologies R&D and Marketing gmbh agilent technologies Inc.

Introduction:Routine screening and quantitation for pesticides is important to increase the safety of herbal drugs used in *** plants are also affected by fungal infections and the presence of weed plants raising the ... 详细信息

关键词： MS LC TCM COMBINED CONTAMINANT AND MULTI-RESIDUE TESTING BY LC/MS/MS FOR THE QUALITY CONTROL OF HERBAL DRUGS USED IN TRADITIONAL CHINESE MEDICINE

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The TCM Chemistry Specialty Committee and the TCM Pharmaceutical Analysis Specialty Committee of the World Federation of Chinese Medicine Societies

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World Journal of Traditional Chinese Medicine 2015年第4期 65-107页

作者： Sonja Krieger Waldbronn agilent technologies

0-1TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY (2D-LC) IN THE ANALYSIS OF PHARMACEUTICALS AND AUTHENTICATION OF CHINESE HERBAL MEDICINE Sonja Kriegera,Waldbronnb *** technologies;*** One-dimensional liquid chromatography(1D-LC)is routinely applied to the analysis of all kinds of samples in different *** the introduction of UHPLC instruments and sub-2micron particle columns,the separation efficiency was greatly *** resolve all components of complex samples,however,1D-LC does not provide enough resolving power,or peak *** addition,to separate compounds co-eluting in 1D-LC,increasing the separation efficiency by increasing the

关键词： LC IN THE ANALYSIS OF PHARMACEUTICALS AND AUTHENTICATION OF CHINESE HERBAL MEDICINE TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY

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THAI experimental research on hydrogen risk and source term related safety systems

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Frontiers in Energy 2021年第4期15卷 887-915页

作者： Sanjeev GUPTA Martin FREITAG Gerhard POSS Becker technologies gmbh Rahmannstrasse 11Eschborn 65760Germany

In the defense-in-depth concept employed for the safety of nuclear installations,maintaining integrity of containment as the last barrier is of high importance to limit the release of radioactivity to the environment in case of a severe *** active and passive safety systems implemented in containments of light water reactors(LWRs)are designed to limit the consequences of such *** the performance and reliability of such systems under accident conditions is critical to the safety of nuclear *** the aftermath of the Fukushima accident,there has been focus on re-examining the existing safety systems to demonstrate their capabilities for a broader range of boundary conditions comprising both the early as well as the late phases of an *** addition to the performance testing of safety systems,their interaction with containment atmosphere needs detailed investigations to evaluate the effects of operation of safety systems on H2 risk and fission product(FP)behavior in containment,which may ultimately have an impact on the source term to the *** this context,an extensive containment safety related experimental research has been conducted in a thermalhydraulics,hydrogen,aerosols,and iodine test facility(THAI,60 m3,single vessel)/(THAI+,80 m3,two interconnected vessels).Related to the subject of this paper,experimental investigations covered performance testing of various safety and mitigation systems,i.e.,containment spray,passive autocatalytic recombiner(PAR),pressure suppression pool(water pools),and effects of their operation on H2 risk and in-containment FP *** experimental results have provided a better phenomenological understanding and database for validation and further improvement of a safety analysis tool based on computation fluid dynamic(CFD)and lumped parameter(LP)modeling *** paper summarizes the main insights obtained from the aforesaid THAI experimental research covering safety systems

关键词： severe accident containment safety mitigation H2 risk source term

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An Investigation into the Current Situation and Trend of E-business in the Automotive Industry

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中国汽车（英文版） 2005年第4期 16-17页

作者： CATARC agilent technologies

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