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de Dios García, Ignacio (author), Stankiewicz, A.I. (author), Nigar, H. (author)Energy-efficient CH4-CO2 valorization to fuels and chemicals presents an urgent need considering the great variety of methane sources and the removal of greenhouse gases. In the present work, the microwave-assisted dry reforming of methane, DRM, has been carried out in a custom-designed rectangular mono-mode microwave applicator over several...journal article 2021
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Magalhaes de Medeiros, E. (author), Noorman, H.J. (author), Filho, Rubens Maciel (author), Posada Duque, J.A. (author)This work presents a strategy for optimizing the production process of ethanol via integrated gasification and syngas fermentation, a conversion platform of growing interest for its contribution to carbon recycling. The objective functions (minimum ethanol selling price (MESP), energy efficiency, and carbon footprint) were evaluated for the...journal article 2021
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Perdigão Elisiário, M. (author), De Wever, Heleen (author), Van Hecke, Wouter (author), Noorman, H.J. (author), Straathof, Adrie J.J. (author)Syngas fermentation to biofuels and chemicals is an emerging technology in the biobased economy. Mass transfer is usually limiting the syngas fermentation rate, due to the low aqueous solubilities of the gaseous substrates. Membrane bioreactors, as efficient gas–liquid contactors, are a promising configuration for overcoming this gas-to...review 2021
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Quan Reyes, Diego (author)The current economic-development system based on fossil fuels can no longer sustain itself and is incapable of satisfying the needs of the global population. Nearly one third are unable to meet even their most basic needs that involve harnessing energy for everyday essential tasks such as maintaining livable shelter and food preparation. Models...master thesis 2020
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Kolf, D.I. (author)The steel making industry is highly energy intensive and a great contributor of greenhouse gas (GHG) emissions. It generated between 7% and 9% of direct emissions from the global use of fossil fuels in 2017 [1]. Gas emissions in an integrated steel mill (ISM) arise mainly from three streams: coke oven gas (COG), blast furnace gas (BFG) and basic...master thesis 2020
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- Puiman, Lars (author) master thesis 2020
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Almeida Benalcazar, E.F. (author), Noorman, H.J. (author), Maciel Filho, Rubens (author), Posada Duque, J.A. (author)Background: Ethanol production through fermentation of gas mixtures containing CO, CO<sub>2</sub> and H<sub>2</sub> has just started operating at commercial scale. However, quantitative schemes for understanding and predicting productivities, yields, mass transfer rates, gas flow profiles and detailed energy requirements have been lacking in...journal article 2020
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Magalhaes de Medeiros, E. (author), Noorman, H.J. (author), Maciel Filho, Rubens (author), Posada Duque, J.A. (author)In this work, a model was developed to predict the performance of a bubble column reactor for syngas fermentation and the subsequent recovery of anhydrous ethanol. The model was embedded in an optimization framework which employs surrogate models (artificial neural networks) and multi-objective genetic algorithm to optimize different process...journal article 2020
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Kuo, P.C. (author), Illathukandy, Biju (author), Wu, Wei (author), Chang, Jo Shu (author)Plasma gasification of raw and torrefied woody, non-woody, and algal biomass using three different gasifying agents (air, steam, and CO<sub>2</sub>) is conducted through a thermodynamic analysis. The impacts of feedstock and reaction atmosphere on various performance indices such as syngas yield, pollutant emissions, plasma energy to syngas...journal article 2020
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Delikonstantis, Evangelos (author), Sturm, G.S.J. (author), Stankiewicz, A.I. (author), Bosmans, Anouk (author), Scapinello, Marco (author), Dreiser, Christian (author), Lade, Oliver (author), Brand, Stefan (author), Stefanidis, G. (author)In this work, we report on air/N<sub>2</sub> gasification of a byproduct stream from an industrial fermenter in a tubular microwave plasma reactor to investigate the feasibility of the technology for organic compounds valorization, given the limited number of relevant works in the literature. In this context, an operating window regarding air...journal article 2019
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Magalhaes de Medeiros, E. (author), Posada Duque, J.A. (author), Noorman, H.J. (author), Filho, Rubens Maciel (author)Syngas fermentation is one of the bets for the future sustainable biobased economies due to its potential as an intermediate step in the conversion of waste carbon to ethanol fuel and other chemicals. Integrated with gasification and suitable downstream processing, it may constitute an efficient and competitive route for the valorization of...journal article 2019
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Monteiro Fernandes, A.B. (author), Brabandt, Joerg (author), Posdziech, Oliver (author), Saadabadi, S.A. (author), Recalde Moreno Del Rocio, M.D.R. (author), Fan, L. (author), Promes, E.J.O. (author), Liu, M. (author), Woudstra, T. (author), Aravind, P.V. (author)This paper describes the steps involved in the design, construction, and testing of a gasifier-specific solid oxide fuel cell (SOFC) system. The design choices are based on reported thermodynamic simulation results for the entire gasifier- gas cleanup-SOFC system. The constructed SOFC system is tested and the measured parameters are compared...journal article 2018
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Redl, Stephanie (author), Sukumara, Sumesh (author), Ploeger, Tom (author), Wu, Liang (author), Ølshøj Jensen, Torbjørn (author), Nielsen, Alex Toftgaard (author), Noorman, H.J. (author)Background: Syngas fermentation is a promising option for the production of biocommodities due to its abundance and compatibility with anaerobic fermentation. Using thermophilic production strains in a syngas fermentation process allows recovery of products with low boiling point from the off-gas via condensation. Results: In this study we...journal article 2017
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Tabish, A.N. (author), Patel, H.C. (author), Aravind, P.V. (author)Fuel flexibility of solid oxide fuel cells enables the use of low cost and practical fuels like syngas. Understanding of the oxidation kinetics with syngas is essential for proper selection of anode material and its design optimization. Using nickel and ceria pattern anodes, we study the electrochemical oxidation of syngas in both dry and wet...journal article 2017
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Sartipi, S. (author)Design and development of catalyst formulations that maximize the direct production of liquid fuels by combining Fischer-Tropsch synthesis (FTS), hydrocarbon cracking, and isomerization into one single catalyst particle (bifunctional FTS catalyst) have been investigated in this thesis. To achieve this aim, a second functionality (other than FTS)...doctoral thesis 2014
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Ramaker, B.C. (author)The current need to reduce CO2 emission from power plant flue gas demands development of new and more energy efficient separation processes. Liquid crystals are a new class of solvents for CO2 absorption; making use of a solubility switch between two phases. Solubility of CO2 is higher in the isotropic liquid phase than in the structured liquid...master thesis 2013
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Siedlecki, M. (author)This work presents and discusses the results of the research on the gasification of biomass in an atmospheric circulating fluidized bed, with a mixture of steam and oxygen as fluidization / gasification medium. The main objectives of this research were to investigate and improve the gasification process in order to produce hydrogen-rich gas from...doctoral thesis 2011
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Wang, Y. (author)Experimental study towards selective catalytic conversion of raw synthesis gas.master thesis 2010
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Goosens, F.J. (author)The thesis research was conducted at the section E&I (energy and industry) of the faculty of Technology, Policy and Management. The world around us is complex and this complexity is only expected to increase as technological development spurs on. This complexity arises from social and technical parts that interact with each other and co?evolve...master thesis 2010
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Ligtvoet, A. (author)Future price developments and availability of energy resources are uncertain. Therefore, developers of energy infrastructures will have to consider different scenarios in their planning. Moreover, the implementation of large infrastructures requires the cooperation of several actors, which adds to the uncertainty. In this paper we describe the...conference paper 2010