Results 101 to 110 of about 521,098 (276)

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

open access: yesChemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler   +3 more
wiley   +1 more source

Composition of Purified CO2 From Steel Mill Processes—A Classification and Analytical Comparison With Commercial CO2

open access: yesChemie Ingenieur Technik, EarlyView.
Due to the severe catalyst poisoning effect of certain trace components, the purity of CO2 is the main attribute to qualify it as syngas for further downstream processes. This study uses PTR–MS to investigate the trace components of the CO2 produced within the Carbon2Chem project.
Tim Herrendorf   +4 more
wiley   +1 more source

On Metal Carbonyl Compounds in Catalytic Methanol Synthesis: Detection, Consequences, and Removal

open access: yesChemie Ingenieur Technik, EarlyView.
Deactivation of Cu/ZnO/Al2O3 catalysts by metal carbonyl compounds in the feed gas is a critical problem in catalytic methanol synthesis. We utilize PTR–MS to identify potential chemical sources, detect contamination in an in‐house CO gas line, and validate filter methods for removing these catalyst poisons before synthesis.
Florian Stappert   +4 more
wiley   +1 more source

Symposium Didactique de la technologie [PDF]

open access: yes, 2019
Ce symposium présente quatre recherches actuelles menées en Suisse qui in-vestiguent la conception et la reconception des objets techniques du quotidien, dans une perspective interdisciplinaire.
Didier, John   +6 more
core  

Methanol With Increased Water Content in Internal Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
This study investigates the potential to improve overall Well‐to‐Wheel efficiency by using low‐purity methanol from synthesis of hydrogen and furnace gas as CO2‐source. Combustion efficiency is comparable to pure methanol, while distillation energy could be saved.
Maximilian Dobberkau   +3 more
wiley   +1 more source

Development and Validation of a Multipurpose Setup for Synthesis Gas Chemistry

open access: yesChemie Ingenieur Technik, EarlyView.
Validation of a flexible multipurpose setup for synthesis gas reactions under industrially relevant conditions equipped with precise control of temperature, pressure, and gas composition, and multiple online detection methods (IR, GC, QMS, and RAMAN), demonstrated by successful operation of NH3 decomposition, MeOH synthesis, and NH3 synthesis ...
Jan Folke   +4 more
wiley   +1 more source

Einfache Herstellung von Kohlenstoff‐Nanopartikeln durch elektrochemische Exfoliation von thermisch vorgeschädigtem Graphit

open access: yesCHEMKON, EarlyView.
Kohlenstoffhaltige Nanopartikel stellen eine spannende Schnittstelle zwischen Kohlenstoffchemie und Nanochemie dar und wurden von der IUPAC als eine der Top Ten Emerging Technologies des Jahres 2025 ausgezeichnet. Darüber hinaus sind sie geeignet, Top‐Down‐Synthesen von Nanopartikeln im Chemieunterricht zu thematisieren, die bereits curricular ...
Edwin Bogdan   +2 more
wiley   +1 more source

Zahnpasta in Batterien? – Schulexperimente zu Gelelektrolytbatterien für Lernende

open access: yesCHEMKON, EarlyView.
Mit der europäischen Richtlinie für Erneuerbare Energien und dem Ziel, den Anteil erneuerbarer Energien bis 2030 auf mindestens 42,5 % zu steigern, wächst der Bedarf an innovativen Energiespeichersystemen. Neben etablierten Technologien rücken alternative Batteriekonzepte zunehmend in den Fokus von Forschung und Entwicklung.
Tom Severin Gabriel, Dominique Rosenberg
wiley   +1 more source

Wpływ dokarmiania dolistnego na zdrowotność roślin ziemniaka w okresie wegetacji

open access: yesAgronomy Science, 2009
Badania oparto na wynikach doświadczenia polowego, przeprowadzonego w latach 2004–2006 na glebie kompleksu żytniego dobrego. Eksperyment założono metodą losowanych podbloków, a badano technologie uprawy: technologię z zastosowaniem bioregulatora wzrostu 
BARBARA SAWICKA, DOMINIKA SKIBA
doaj  

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