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ChemEngineering, Volume 8, Issue 3

June 2024 - 19 articles

Cover Story: Solid–liquid separation plays a crucial role in various industrial applications, particularly in the treatment and purification of suspensions. Decanter centrifuges are frequently used because they operate continuously and enable high throughput rates with short residence times. However, predicting separation performance is challenging due to dynamic phenomena within the device, such as sedimentation, sediment build-up and sediment transport. In practice, design considerations are based on analytical models and the expertise of manufacturers. Computational fluid dynamics (CFD) enables a more accurate investigation of flow phenomena and their effects. This study uses OpenFOAM to simulate and validate multiphase flow in a laboratory decanter centrifuge. The results demonstrate the potential of CFD for optimizing centrifuge processes. View this paper
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Articles (19)

  • Article
  • Open Access
2 Citations
2,720 Views
14 Pages

Synthesis of AgCoCuFeNi High Entropy Alloy Nanoparticles by Hydrogen Reduction-Assisted Ultrasonic Spray Pyrolysis

  • Srecko Stopic,
  • Ayadjenou Humphrey Hounsinou,
  • Tatjana Volkov Husovic,
  • Elif Emil-Kaya and
  • Bernd Friedrich

Because of their high mixing entropies, multi-component alloys can exhibit enhanced catalytic activity compared to traditional catalysts in various chemical reactions, including hydrogenation, oxidation, and reduction processes. In this work, new AgC...

  • Article
  • Open Access
2,680 Views
24 Pages

Purifying biogas can enhance the performance of distributed smart grid systems while potentially yielding clean feedstock for downstream usage such as steam reforming. Recently, a novel anion-pillared metal–organic framework (MOF) was reported...

  • Review
  • Open Access
7 Citations
2,853 Views
24 Pages

Synergistic Innovations: Organometallic Frameworks on Graphene Oxide for Sustainable Eco-Energy Solutions

  • Ganeshraja Ayyakannu Sundaram,
  • Ahmed F. M. EL-Mahdy,
  • Phuong V. Pham,
  • Selvaraj Kunjiappan and
  • Alagarsamy Santhana Krishna Kumar

Combining organometallic frameworks with graphene oxide presents a fresh strategy to enhance the electrochemical capabilities of supercapacitors, contributing to the advancement of sustainable energy solutions. Continued refinement of materials and d...

  • Article
  • Open Access
1 Citations
2,620 Views
18 Pages

Effects of Mineral Elements and Annealing on the Physicochemical Properties of Native Potato Starch

  • Johanna A. Thomann,
  • Michael Polhuis,
  • Alessia Lasorsa,
  • Hero J. Heeres and
  • André Heeres

Native potato starch is an excellent carrier of minerals due to its inherent ion exchange capacity. Mineral enrichment not only changes the nutritional value but also influences starch pasting and swelling properties. Hydrothermal treatments like ann...

  • Article
  • Open Access
2,273 Views
23 Pages

The awareness of the concept of the “Circular Economy” is motivating scientists to convert drinking water treatment plant by-products, which are based on aluminum waste, into a valorized material for wastewater treatment. Alum sludge from...

  • Article
  • Open Access
16 Citations
3,890 Views
25 Pages

Using Excel Solver’s Parameter Function in Predicting and Interpretation for Kinetic Adsorption Model via Batch Sorption: Selection and Statistical Analysis for Basic Dye Removal onto a Novel Magnetic Nanosorbent

  • Akkharaphong Wongphat,
  • Surachai Wongcharee,
  • Nuttapon Chaiduangsri,
  • Kowit Suwannahong,
  • Torpong Kreetachat,
  • Saksit Imman,
  • Nopparat Suriyachai,
  • Sukanya Hongthong,
  • Panarat Phadee and
  • Preut Thanarat
  • + 1 author

Magnetic nanosorbents efficiently capture substances, particularly basic dyes, and can be easily recovered using a magnetic field in water treatment. Adsorption is a cost-effective and highly efficient method for basic dye removal. This study compare...

  • Article
  • Open Access
4 Citations
3,570 Views
20 Pages

Partial Replacement of Carbon Black with Graphene in Tire Compounds: Transport Properties, Thermal Stability and Dynamic Mechanical Analysis

  • Krishna Prasad Rajan,
  • Aravinthan Gopanna,
  • Mohammed Rafic,
  • Rajesh Theravalappil and
  • Selvin P. Thomas

In this study, natural rubber (NR)/polybutadiene rubber (PB) blend-based composites were prepared using graphene as a partial replacement for carbon black (CB) in different parts per hundred rubber (phr) percentages. In a previous study, the vulcaniz...

  • Feature Paper
  • Review
  • Open Access
3 Citations
3,194 Views
13 Pages

The usage of copper (Cu) ores containing low or no arsenic (As) has reduced, and Cu ores containing high levels of As have emerged as vital mineral resources for Cu extraction and processing. The quality of the Cu ores has decreased from 1.6% to appr...

  • Feature Paper
  • Article
  • Open Access
9 Citations
3,610 Views
19 Pages

Hydrotalcite-derived mixed metal oxides containing Co and Ni and containing these metals supported on MgO and Al2O3 were prepared and tested as catalysts for the decomposition of ammonia to hydrogen and nitrogen. The obtained samples were characteris...

  • Article
  • Open Access
4 Citations
2,722 Views
20 Pages

This study explores the dynamics of liquid holdup in a lab-scale co-current two-phase upflow moving packed bed reactor, specifically examining how superficial gas velocity influences the line average external liquid holdup at a fixed superficial liqu...

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ChemEngineering - ISSN 2305-7084