Searched for: subject%3A%22process%22
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Isobutanol is a highly attractive renewable alternative to conventional fossil fuels, with superior fuel properties as compared to ethanol and 1-butanol. Even though the isobutanol production by fermentation has significant potential, complex downstream processing is limiting the wide-spreading of this technology. Accordingly, this original...
journal article 2024
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Fedeli, M. (author), Negri, F. (author), Bornazzini, A. (author), Montastruc, L. (author), Manenti, F. (author), Kiss, A.A. (author)
This study investigates an innovative method to produce dimethyl ether (DME) by direct synthesis from syngas derived from biogas. The proposed process was rigorously simulated in Aspen Plus, highlighting the main sections: (i) biogas tri-reforming, (ii) dimethyl-ether synthesis, and (iii) DME purification. The tri-reforming section has a CO...
journal article 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), McGregor, Ian R. (author), Kiss, A.A. (author)
Distillation is the most used separation technology at industrial-scale, but using distillation in bio-based processes (e.g. fermentation processes to produce bioethanol) is quite challenging when mild temperatures are needed to keep the microbes alive. Vacuum distillation can be used to perform evaporation at low temperatures, but setting a...
journal article 2024
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Vaquerizo, L. (author), Kiss, A.A. (author)
Methanol and DME are highly efficient fuels and relevant building blocks that can be synthesized by CO<sub>2</sub> hydrogenation. While several alternatives for methanol production by CO<sub>2</sub> hydrogenation have already been developed at a commercial scale, DME production is still based on methanol dehydration. In this sense, the...
journal article 2024
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Dal Mas, R. (author), Somoza Tornos, A. (author), Pérez-Fortes, Mar (author), Kortlever, R. (author), Kiss, A.A. (author)
Despite the huge efforts devoted to the development of the electrochemical reduction of CO2 (ECO2R) in the past decade, still many challenges are present, hindering further approaches to industrial applications. This paper gives a perspective on these challenges from a Process Systems Engineering (PSE) standpoint, while at the same time...
journal article 2024
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Li, Q. (author), Somoza Tornos, A. (author), Grievink, J. (author), Kiss, A.A. (author)
Process Intensification (PI) is an effective way to enhance process efficiency and sustainability at affordable costs and efforts, attracting particular interest in the European area, as one of the most important chemical production areas in the world. PI primarily contributes by developing and testing new processing technologies that once...
journal article 2024
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Bosman, Danforth Brandon (author), Li, Q. (author), Kiss, A.A. (author)
Downstream processing of natural gas liquids (NGL) provides feedstock needed for plastic production, upgraded fuels and heating, but it is one of the largest high-pressure and energy intensive processes. This original study is the first to integrate novel process intensification options from a holistic viewpoint for the full process covering...
journal article 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Isopropanol-butanol-ethanol (IBE) fermentation is a superior biofuel production technology as compared to acetone-butanol-ethanol (ABE) fermentation due to the better fuel properties of the obtained products. However, low product concentrations, thermodynamic constraints and the presence of microorganisms lead to complex downstream processing...
journal article 2024
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Kiss, A.A. (author), Muthia, Rahma (author), Pazmiño-Mayorga, Isabel (author), Harmsen, G.J. (author), Jobson, Megan (author), Gao, Xin (author)
Reactive distillation (RD) is a process intensification technique that offers major advantages over conventional technologies by enabling the integration of reaction and separation into a single apparatus. This integration introduces and exploits complex interaction between mass transfer, chemical reaction and hydrodynamics within an RD...
review 2024
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Cui, C. (author), Zhang, Xiaodong (author), Qi, Meng (author), Lyu, Hao (author), Sun, Jinsheng (author), Kiss, A.A. (author)
In industrial processes there are instances where heat pump assisted distillation falls short of full electrification, necessitating an auxiliary reboiler. To solve this limiting issue, this short communication proposes a new method using flash vapour circulation (FVC) to recuperate the waste heat within the heat pump cycle. This method...
journal article 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
PDO (1,3-propanediol) is a platform chemical that is obtained by petrochemical routes and by fermentation. The latter needs relatively complex downstream processing after fermentation, due to the modest concentration of the high-boiling product, and the presence of microorganisms and many impurities in the fermentation medium. This novel...
journal article 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Propionic acid is a valuable platform chemical that is usually produced via fossil routes. As these are energy-intensive and eco-unfriendly processes, fermentative production of propionic acid is becoming more attractive. However, the complex downstream processing (due to low achievable product concentrations, high water content, presence of by...
journal article 2024
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Cui, C. (author), Qi, Meng (author), Zhang, Xiaodong (author), Sun, Jinsheng (author), Li, Q. (author), Kiss, A.A. (author), Wong, David Shan-Hill (author), Masuku, Cornelius M. (author), Lee, Moonyong (author)
Distillation remains the leading and most frequently adopted technique for the separation and purification of condensable mixtures in numerous industries. However, the inherently poor thermal efficiency of distillation requires a large amount of thermal energy, making it the chief factor in total process energy usage and a significant emitter of...
review 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Even though industrial biotechnology is successfully used for the production of some chemicals, for many other chemicals it is not yet competitive with conventional petrochemical production. Usually, fermentation as well as downstream processing requires improvement. Downstream processing has to deal with low product concentrations,...
journal article 2024
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Moraru, Mihai Daniel (author), Bildea, Costin Sorin (author), Kiss, A.A. (author)
This chapter focuses on the design and control of reactive distillation (RD) columns, which are seen as an integral part of an intensified chemical process. While most of the published literature presents analyses of the RD columns as standalone process units, this work frames the RD columns within a process where recycle streams (to these...
book chapter 2024
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Increasing concerns over environmental pollution, climate change and energy security are driving a necessary transition from fossil carbon sources to more sustainable alternatives. Due to lower environmental impact, biochemicals are rapidly gaining significance as a potential renewable solution, particularly of interest in Europe. In this...
journal article 2023
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
BACKGROUND: Isopropanol and acetone production by syngas fermentation is a promising alternative to conventional fossil carbon-dependent production. However, this alternative technology has not yet been scaled up to an industrial level owing to the relatively low product concentrations (about 5 wt% in total). This original research aims to...
journal article 2023
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Pazmiño-Mayorga, Isabel (author), Jobson, Megan (author), Kiss, A.A. (author)
Advanced reactive distillation technologies (ARDT) are often overlooked during process synthesis due to their complexity. This work proposes the use of operating windows with additional features to identify suitable operating limits for ARDT. Data needed to construct the operating windows are thermodynamic properties, kinetic parameters,...
journal article 2023
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Li, Q. (author), Finn, Adrian J. (author), Doyle, Stephen J. (author), Smith, Robin (author), Kiss, A.A. (author)
The synthesis of heat-integrated distillation sequences for energy-efficient separation of zeotropic multicomponent mixtures is complex due to the many interconnected design degrees of freedom. This paper explores the basis on which reliable screening can be carried out. To solve this problem, a screening algorithm has been developed using...
book chapter 2023
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Bedryk, Olesja (author), Shevchenko, Alexander (author), Mishchenko, O. S. (author), Maleta, Vladimir N. (author), Kiss, A.A. (author)
This study provides novel details about the industrial use of cyclic distillation in the production of food-grade alcohol, which confirmed the theoretical predictions of increasing separation efficiency. Increasing the profitability of the production of ethanol food grade is primarily associated with an increase in product quality and...
journal article 2023
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