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ChemEngineering, Volume 9, Issue 2

2025 April - 21 articles

Cover Story: This study explores the innovative application of soft actor-critic (SAC) reinforcement learning to optimize the design of multistage distillation column internals. By integrating Python’s OpenAI Gymnasium module with AspenPlus® software, the research demonstrates how SAC automates the traditionally manual and iterative process of column internal parameter optimization to achieve target flooding rates. The key findings highlight SAC’s efficiency in high-dimensional design spaces, the influence of reward schemes, and the role of hyperparameters. This approach not only reduces runtime but also enhances accuracy, offering a transformative solution for chemical process design challenges. View this paper
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Articles (21)

  • Article
  • Open Access
1,027 Views
20 Pages

In recent years, the Italian peninsula has frequently been affected by fires in waste storage facilities, both accidental and malicious. Waste storage activities must comply with a series of regulations that require the employer to carefully assess t...

  • Article
  • Open Access
3 Citations
1,849 Views
32 Pages

Dye wastewater poses significant risks to human health and aquatic ecosystems, necessitating efficient remediation strategies. This study developed a magnetic Fe2O3 nanocomposite (MNC) derived from phosphoric acid-treated walnut shell biomass carbon...

  • Article
  • Open Access
1,315 Views
15 Pages

Research of the Process of Obtaining Monocalcium Phosphate from Unconditional Phosphate Raw Materials

  • Abibulla Anarbayev,
  • Balzhan Kabylbekova,
  • Zhakhongir Khussanov,
  • Bakyt Smailov,
  • Nurlan Anarbaev and
  • Yevgeniy Kulikov

The article presents methods for processing low-grade phosphate raw materials from the Chilisay deposit using a circulation method to produce mineral fertilizers and feed monocalcium phosphate. A study was conducted on the process of obtaining high-q...

  • Article
  • Open Access
2 Citations
2,533 Views
19 Pages

Enhanced Efficiency of CZTS Solar Cells with Reduced Graphene Oxide and Titanium Dioxide Layers: A SCAPS Simulation Study

  • Dounia Fatihi,
  • Giorgio Tseberlidis,
  • Vanira Trifiletti,
  • Simona Binetti,
  • Eleonora Isotta,
  • Paolo Scardi,
  • Abderrafi Kamal,
  • R’hma Adhiri and
  • Narges Ataollahi

Copper zinc tin sulfide (commonly known as CZTS) solar cells (SCs) are gaining attention as a promising technology for sustainable electricity generation owing to their cost-effectiveness, availability of materials, and environmental advantages. The...

  • Article
  • Open Access
3 Citations
2,862 Views
14 Pages

Drilling Optimization Using Artificial Neural Networks and Empirical Models

  • Mohammed F. Al Dushaishi,
  • Ahmed K. Abbas,
  • Mortadha T. Al Saba and
  • Jarrett Wise

A key role of drilling optimization is reducing the cost and non-productive time (NPT) for drilling operations. The rate of penetration (ROP) directly affects the overall cost and cost per foot of drilling operations and could lead to significant cos...

  • Review
  • Open Access
3 Citations
4,513 Views
32 Pages

The ever-growing environmental and sustainability awareness as well as the associated increased independence from petroleum has led to bio-based materials increasingly replacing synthetic, non-renewable materials in various applications, including fo...

  • Article
  • Open Access
2 Citations
1,467 Views
22 Pages

Development of New Xanthan-Aldehyde/Gelatin Nanogels for Enhancement of Ibuprofen Transdermal Delivery: In-Vitro/Ex-Vivo/In-Vivo Evaluation

  • Yacine Nait Bachir,
  • Ramdane Mohamed Said,
  • Mohamed Lamine Abdelli,
  • Walid Namaoui,
  • Meriem Medjkane,
  • Nouara Boudjema,
  • Halima Meriem Issaadi and
  • Elisabeth Restrepo Parra

The aim of this study was to prepare nanogels based on gelatin and xanthan-aldehyde for the enhancement of ibuprofen transdermal delivery. Firstly, the process of formulating nanogels using the reaction of Schiff’s base was optimized using expe...

  • Article
  • Open Access
2,469 Views
20 Pages

Soft Actor-Critic Reinforcement Learning Improves Distillation Column Internals Design Optimization

  • Dhan Lord B. Fortela,
  • Holden Broussard,
  • Renee Ward,
  • Carly Broussard,
  • Ashley P. Mikolajczyk,
  • Magdy A. Bayoumi and
  • Mark E. Zappi

Amid the advancements in computer-based chemical process modeling and simulation packages used in commercial applications aimed at accelerating chemical process design and analysis, there are still certain tasks in design optimization, such as distil...

  • Article
  • Open Access
997 Views
15 Pages

The reliance on greenhouse gas-emitting unrenewable energy sources such as coal, natural gas, and oil, increases climate change. Transitioning to renewable energy, such as biogas, is crucial to reducing environmental degradation and global warming. T...

  • Article
  • Open Access
2,233 Views
16 Pages

As a kind of high-oxygen organic liquid produced during biomass pyrolysis, wood vinegar possesses significant industrial value due to its rich composition of acetic acid, phenols, and other bioactive compounds. In this study, we explore the applicati...

  • Article
  • Open Access
2 Citations
2,236 Views
14 Pages

Phytochemical Profiling and Antioxidant Activity of True Leaves and Cotyledons of Adenocaulon himalaicum

  • Sang-Yun Lee,
  • Nari Yoon,
  • Neil Patrick Uy,
  • Chung-Ho Choi and
  • Sanghyun Lee

Adenocaulon himalaicum is widely distributed across Asia. In its early growth stages, A. himalaicum is traditionally consumed as a food source in Korea. Although previous research has identified the presence of bioactive compounds in A. himalaicum ex...

  • Article
  • Open Access
5 Citations
3,469 Views
17 Pages

This study aimed at preparing three types of biochar derived from rice husk via pyrolysis, including unactivated biochar, biochar chemically activated after with H3PO4, and biochar impregnated with γ-Fe2O3 nanoparticles. These materials were su...

  • Article
  • Open Access
1 Citations
1,554 Views
17 Pages

The introduction of a gas phase into a liquid is used in a variety of technical applications. Based on the purpose of the application, different flow behaviors of the gas phase and specific gas phase parameters are preferred. In this study, the influ...

  • Communication
  • Open Access
4 Citations
1,639 Views
9 Pages

Plasma Modification of Technical Carbon with Nitrogen and Sulfur-Containing Functional Groups for Application in Catalytic Systems

  • Ksenia Kharisova,
  • Evgenii Beletskii,
  • Oleg Levin,
  • Ruopeng Li,
  • Peixia Yang and
  • Elena Alekseeva

This study presents an effective plasma treatment method for doping technical carbon by nitrogen- and sulfur-containing functional groups. Nitrogen incorporation shifted the oxygen reduction reaction onset potential by 0.25 V and increased the limiti...

  • Article
  • Open Access
1,369 Views
12 Pages

Silica–zirconia nanoparticles were successfully synthesised using the precipitation process. The surface area and shape of the Si-ZrO2 nanoparticles were investigated using BET, X-ray diffraction (XRD), scanning electron microscopy (SEM), and t...

  • Article
  • Open Access
7 Citations
5,554 Views
19 Pages

Pectin Extraction Process from Cocoa Pod Husk (Theobroma cacao L.) and Characterization by Fourier Transform Infrared Spectroscopy

  • Ismael Santiago-Gómez,
  • Areli Carrera-Lanestosa,
  • Fanny Adabel González-Alejo,
  • Zenaida Guerra-Que,
  • Ricardo García-Alamilla,
  • José Luis Rivera-Armenta and
  • Pedro García-Alamilla

The Cocoa Pod Husk (CPH) accounts for 67–76% of the total cocoa fruit weight, making it its main agro-industrial waste of cocoa production. A valorization of this waste is possible through the extraction of pectin. In this study, pectin was ext...

  • Article
  • Open Access
4 Citations
2,789 Views
12 Pages

Synthesis of MOFs and Characterization and Drug Loading Efficiency

  • Chuang Wu and
  • Haithm Yahya Mohammed Almuaalemi

Asthma and allergic rhinitis (AR) stand as prevalent chronic ailments impacting children within the United States. It is approximated that as many as 40% of American children exhibit symptoms indicative of AR, a condition which, if inadequately manag...

  • Article
  • Open Access
2,836 Views
19 Pages

Removal of Pb(II) and Cd(II) Ions from Aqueous Solutions Using Modified Fish Scale Bioadsorbent

  • Yamilet Hernández Pérez,
  • Everth J. Leal Castañeda,
  • Jorge Meléndez Estrada,
  • Edith Montesinos-Pedro,
  • Ahmad Abo Markeb and
  • Xavier Font

The need to conserve water is important, as it is predicted that in approximately 20 years there will be a global water shortage. In Mexico and the rest of the world, scientists are constantly looking for methods to help conserve and improve the proc...

  • Article
  • Open Access
1 Citations
1,827 Views
15 Pages

Improvement of Malagasy Traditional Earth Bricks by Using a Derivative of CNSL as a Binding Agent

  • Volana Mifelana Holiarinala,
  • Fenia Diane Ramiharimanana,
  • Hermann Rafanoela,
  • Stephanoel Randriatsarazaka,
  • Raymond Razafimahatratra,
  • Estelle Metay,
  • Voahangy Vestalys Ramanandraibe and
  • Marc Lemaire

Traditional bricks are still the most widely used building material in Madagascar. Bricks are made from clay that is fired for weeks in open-air kilns (600–750 °C) by using rice husks, peat, charcoal, coal, and wood as fuels. This process c...

  • Article
  • Open Access
4,233 Views
27 Pages

Operative Improvement in the Naphtha Catalytic Reforming Process to Reduce the Environmental Impact of Benzene Fugitive Emissions from Gasoline

  • Fabiola Velázquez-Alonso,
  • César Abelardo González-Ramírez,
  • José Roberto Villagómez-Ibarra,
  • Elena María Otazo-Sánchez,
  • Martín Hernández-Juárez,
  • Fernando Pérez-Villaseñor,
  • Ángel Castro-Agüero,
  • Laura Olivia Alemán-Vázquez,
  • César Camacho-López and
  • Claudia Romo-Gómez

A challenge for the oil refinement industry is the production of high-octane gasoline with a low benzene content. This work reports the calculation of the atmospheric benzene emissions generated from gasoline storage, transfer, and transport operatio...

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ChemEngineering - ISSN 2305-7084