Comparing the Economics of Metal Additive Manufacturing Processes for Micro-scale Plate Reactors in the Chemical Process Industry

Manoharan, Sriram; Lee, Kijoon; Freiberg, Lucas; Coblyn, Matthew; Paul, Brian K.

doi:10.1016/j.promfg.2019.06.168

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…At present, additive manufacturing of metal parts remains expensive, but cost reductions are expected over the coming decade, 68,69 largely driven by increased use of additive manufacturing in the aerospace, healthcare and energy sectors 70 . Metal additive manufacturing is presently being considered for the design of structured catalysts, mixers and chemical reactors 71,72 . If these materials can provide significant improvements in process performance, it is plausible that they will be cost effective in the near future.…”

Section: Discussionmentioning

confidence: 99%

Advanced absorber heat integration via heat exchange packings

et al. 2021

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A rate‐based model of an absorption column was developed and used to analyze several intercooling strategies utilizing “heat exchange packings.” These packings are capable of removing heat from the column and transferring it to a cooling fluid within the packing. For absorption of CO2 into aqueous monoethanolamine under industrial conditions, intercooling via heat exchange packings placed along 10–20% of the column could reduce the column height by ∼15%. The height of these columns was close to the minimum theoretical value, calculated by numerically optimizing the temperature profile. Effective intercooling could also be achieved by using the cool, rich solvent as the cooling fluid. This reduces the cooling load and facilitates recovery of waste heat. Heat exchange packings could also be used to redistribute heat within the column, reducing the column height with no net cooling load. However, this approach requires larger heat transfer coefficients than have been experimentally observed.

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Section: Discussionmentioning

confidence: 99%

Advanced absorber heat integration via heat exchange packings

et al. 2021

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“…Insgesamt ist das BJT/M‐Verfahren deutlich zeitaufwendiger aufgrund der größeren Zahl an Schritten. Zu beachten ist bei den angegebenen Zeiten, dass die Druckzeiten und Sinterzeiten leichter skalierbar sind, da nicht direkt vom Bauteilvolumen abhängig 21, 27. Andererseits ist die Entpulverung von innen liegenden Kanälen deutlich zeitintensiver.…”

Section: Herstellung Der Apparateunclassified

Einfluss des additiven Fertigungsverfahrens auf die Gestalt einer Mikrorektifikationsapparatur

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Klahn

et al. 2022

Chemie Ingenieur Technik

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Die additive Fertigung eröffnet auch in der Verfahrenstechnik neue Möglichkeiten. In der Entwicklung kompakter Rektifikationsapparate sind Vorteile für die Herstellung ebenso wie für die Trennleistung denkbar. Der Designprozess für kompakte, fertigungsgerechte Mikrorektifikationsapparate für zwei Metall‐3D‐Druck‐Verfahren wird gezeigt: Binder‐Jetting (BJT/M) und pulverbettbasiertes Schmelzen von Metallen mittels Laser (PBF‐LB/M). Restriktionen der Verfahren, z. B. in Bezug auf Überhänge und die Entpulverungs‐ und Sinterschritte, werden erklärt. Die erste Charakterisierung der gedruckten Teile zeigt, dass die Entwürfe vielversprechend sind.

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“…These extra process steps have been included in cost models and applied to case studies on Electron Beam Melting (EBM) processes. Manoharan et al [15] applied cost models to compare two different metal-based additive manufacturing approaches, namely powder bed fusion and binder jetting. Baumers et al [16] adapted the model proposed by Ruffo et al [7] to quantify the production costs of EBM and DMLS processes.…”

Section: Introductionmentioning

confidence: 99%