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Hire Nabin K.

Sweden

USD 150 /hr

Process Simulation & Scale-Up Consultant, PhD Chemical Engineer, Expert in Process Simulations & Membrane Technologies

Profile Summary

I am a PhD-trained Chemical Engineer with extensive experience in process simulations, process design, and scale-up of chemical and membrane-based systems. My background spans both academic research (PhD + postdoc) and industrial applications, enabling me to bridge scientific innovation with practical engineering solutions. Currently, I work as a Senior Process Specialist at TreeToTextile AB (Sweden), where I lead optimization and design of chemical recovery, liquid/solid waste management, and process scale-up. I also coordinate collaborative projects with Chalmers University of Technology, establishing process laboratories and designing experimental setups. Core expertise and skills : Process Simulation & Design: Custom simulation tools. Process Scale-Up: From lab-scale experiments to pilot and industrial plants. Membrane Technologies: Nanofiltration, separation processes, crystallization of heavy metals. Chemical Recovery Systems: Evaporation, washing, dissolution, and concentration processes. Data-Driven Modeling: Statistical analysis, calibration models, and dimensional analysis for viscosity/density prediction. Molecular and Quantum Simulations: GROMACS, QUANTUM ESPRESSO Previous & Ongoing Projects: Developed proprietary simulation software for chemical recovery systems (evaporation, crystallization, nanofiltration). Designed and optimized membrane-based processes for selective separation of solutes. Investigated mass transfer and washing efficiency in pulp and cellulose fiber processing. Built calibration models for process instruments (Coriolis meters, viscometers) linking physical properties to concentration and flow conditions. Led cross-functional R&D teams for scale-up and commissioning of novel processes. With a strong combination of academic depth and industry experience, I provide consultancy to help companies and researchers design, optimize, and validate chemical processes that are both innovative and industrially viable.

Subject Matter Expertise

• ☆ Computer-Aided Engineering
• ☆ Engineering Thermodynamics/Thermophysical Engineering
• ☆ Heat Transfer & Calorimetry
• ☆ Fluid Mechanics
• ☆ Computational Fluid Dynamics
• ☆ Environmental Engineering and Technology
• ☆ Process Engineering

Services

• Research
• Consulting
• Data & AI
• Product Development

Research Feasibility Study, Fact Checking, Systematic Literature Review

Consulting Scientific and Technical Consulting

Data & AI Predictive Modeling, Statistical Analysis, Data Visualization

Product Development Formulation, Product Evaluation, Concept Development, Reverse Engineering

Work Experience

Visiting Researcher

Chalmers University of Technology

February 2025 - Present

Senior Process Specialist

TreeToTextile AB

October 2023 - Present

Consultant ( senior process engineer)

Hultgren Miljö & HälsoDesign AB

January 2022 - October 2022

post - doctoral researcher

Chalmers University of Technology

June 2019 - January 2022

Education

Doctorate in Engineering Sciences with major in Chemical Engineering

Universidad de Concepcion - Chile

March 2014 - December 2018

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Kenneth Arandia, Nabin Kumar Karna, Tuve Mattsson, Hans Theliander (2023). Monitoring Membrane Fouling Using Fluid Dynamic Gauging: Influence of Feed Characteristics and Operating Conditions . Membranes.

Arandia, K., Karna, N.K., Mattsson, T., Larsson, A., Theliander, H.(2023). Fouling characteristics of microcrystalline cellulose during cross-flow microfiltration: Insights from fluid dynamic gauging and molecular dynamics simulations . Journal of Membrane Science. 669.

Arandia, K., Karna, N.K., Mattsson, T., Larsson, A., Theliander, H.(2023). Fouling characteristics of microcrystalline cellulose during cross-flow microfiltration: Insights from fluid dynamic gauging and molecular dynamics simulations . Journal of Membrane Science. 669.

Lidén, A., Naidjonoka, P., Karna, N.K., Theliander, H.(2022). Structure of Filter Cakes during the Electroassisted Filtration of Microfibrillated Cellulose . Industrial and Engineering Chemistry Research. 61. (43). p. 16247-16256.

Lidén, A., Naidjonoka, P., Karna, N.K., Theliander, H.(2022). Structure of Filter Cakes during the Electroassisted Filtration of Microfibrillated Cellulose . Industrial and Engineering Chemistry Research. 61. (43). p. 16247-16256.

Karna, N.K., Lidén, A., Wohlert, J., Theliander, H.(2021). Electroassisted Filtration of Microfibrillated Cellulose: Insights Gained from Experimental and Simulation Studies . Industrial and Engineering Chemistry Research. 60. (48). p. 17663-17676.

Karna, N.K., Lidén, A., Wohlert, J., Theliander, H.(2021). Electroassisted Filtration of Microfibrillated Cellulose: Insights Gained from Experimental and Simulation Studies . Industrial and Engineering Chemistry Research. 60. (48). p. 17663-17676.

Karna, N.K., Wohlert, J., Lidén, A., Mattsson, T., Theliander, H.(2021). Wettability of cellulose surfaces under the influence of an external electric field . Journal of Colloid and Interface Science. 589. p. 347-355.

Lidén, A., Karna, N.K., Mattsson, T., Theliander, H.(2021). Dewatering microcrystalline cellulose: The influence of ionic strength . Separation and Purification Technology. 264.

Lidén, A., Karna, N.K., Mattsson, T., Theliander, H.(2021). Dewatering microcrystalline cellulose: The influence of ionic strength . Separation and Purification Technology. 264.

Karna, N.K., Wohlert, J., Lidén, A., Mattsson, T., Theliander, H.(2021). Wettability of cellulose surfaces under the influence of an external electric field . Journal of Colloid and Interface Science. 589. p. 347-355.

Rico, I.L.R., Carrazana, R.J.C., Karna, N.K., Iáñez-Rodríguez, I., de Hoces, M.C.(2018). Modeling the mass transfer in biosorption of Cr (VI) y Ni (II) by natural sugarcane bagasse . Applied Water Science. 8. (2).

Rico, I.L.R., Carrazana, R.J.C., Karna, N.K., Iáñez-Rodríguez, I., de Hoces, M.C.(2018). Modeling the mass transfer in biosorption of Cr (VI) y Ni (II) by natural sugarcane bagasse . Applied Water Science. 8. (2).

Karna, N.K., Rojano Crisson, A., Wagemann, E., Walther, J.H., Zambrano, H.A.(2018). Effect of an external electric field on capillary filling of water in hydrophilic silica nanochannels . Physical Chemistry Chemical Physics. 20. (27). p. 18262-18270.

Karna, N.K., Rojano Crisson, A., Wagemann, E., Walther, J.H., Zambrano, H.A.(2018). Effect of an external electric field on capillary filling of water in hydrophilic silica nanochannels . Physical Chemistry Chemical Physics. 20. (27). p. 18262-18270.

Karna, N.K., Oyarzua, E., Walther, J.H., Zambrano, H.A.(2016). Effect of the meniscus contact angle during early regimes of spontaneous imbibition in nanochannels . Physical Chemistry Chemical Physics. 18. (47). p. 31997-32001.

Karna, N.K., Oyarzua, E., Walther, J.H., Zambrano, H.A.(2016). Effect of the meniscus contact angle during early regimes of spontaneous imbibition in nanochannels . Physical Chemistry Chemical Physics. 18. (47). p. 31997-32001.

Rodríguez Rico, I.L., Karna, N.K., Vicente, I.A., Carrazana, R.C., Ronda, A.(2015). Modeling of two up-flow fixed-bed columns in series for the biosorption of Cr⁶⁺ and Ni²⁺ by sugarcane bagasse . Desalination and Water Treatment. 56. (3). p. 792-805.

Rodríguez Rico, I.L., Karna, N.K., Vicente, I.A., Carrazana, R.C., Ronda, A.(2015). Modeling of two up-flow fixed-bed columns in series for the biosorption of Cr⁶⁺ and Ni²⁺ by sugarcane bagasse . Desalination and Water Treatment. 56. (3). p. 792-805.

Berg, A., Karna, N., Fuentealba, C.(2014). Energetic viability of wheat straw fractionation by acetosolv process . Cellulose Chemistry and Technology. 48. (9-10). p. 787-792.

Berg, A., Karna, N., Fuentealba, C.(2014). Energetic viability of wheat straw fractionation by acetosolv process . Cellulose Chemistry and Technology. 48. (9-10). p. 787-792.

OTHER

Arandia, K., Karna, N.K., Mattsson, T., Larsson, A., Theliander, H.(2022). Fouling Characteristics of Microcrystalline Cellulose Duringcross-Flow Microfiltration: Insights from Fluid Dynamicgauging and Molecular Dynamics Simulations . SSRN.

Arandia, K., Karna, N.K., Mattsson, T., Larsson, A., Theliander, H.(2022). Fouling Characteristics of Microcrystalline Cellulose Duringcross-Flow Microfiltration: Insights from Fluid Dynamicgauging and Molecular Dynamics Simulations . SSRN.