Searched for: subject%3A%22Syngas%22
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Yska, Stijn (author)
As global climate change concerns intensify, the search for renewable-based alternatives to products and processes that rely on fossil fuels becomes ever more important. A process that has been championed is the co-electrolysis of carbon dioxide and water, under the supply of renewable energy, via high-temperature solid oxide electrolyser...
master thesis 2022
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SELVAM, KARTHIK (author)
CO2 is the major contributor of green houses gases in the atmosphere. Two notable branches that revolutionized the approach toward reducing the CO2 in the atmosphere are Carbon Capture Storage (CCS) and Carbon Capture Utilization (CCU). CCS has its shortcomings in the long run, a study from MIT shows that the united states have an adequate land...
master thesis 2022
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Hoetmer, Jamie (author)
Capturing and utilizing the emissions of CO<sub>2</sub> has become a method to reduce the occurring emissions from industrial flue gases. One of the methodologies to capture and use the CO<sub>2</sub> is through the CO<sub>2</sub> capture and reduction (CCR) process. This process uses a bi-functional catalyst to capture CO<sub>2</sub> from...
master thesis 2022
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Korkontzelos, Harry (author)
The increasing demands for chemicals and fuels combined with the fuel versus food competition over first generation feedstocks requires the development of more sustainable alternatives. Syngas fermentation offers a sustainable production of fuels and recycling of gaseous and solid waste utilizing gas<br/>fermenting bacteria. Acetogens, such as...
master thesis 2022
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Al-Muraisy, S.A.A. (author), Soares, L.A. (author), Chuayboon, Srirat (author), Ismail, Shahrul Bin (author), Abanades, Stéphane (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)
Oil palm empty fruit bunch (OPEFB) is an abundant waste that is commonly incinerated, causing environmental pollution. In this study, an alternative waste management approach was investigated to produce value-added syngas from OPEFB using solar steam gasification. The three operating variables were temperature (1100–1300 °C), H<sub>2</sub>O...
journal article 2022
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Almeida Benalcazar, E.F. (author), Noorman, H.J. (author), Filho, Rubens Maciel (author), Posada Duque, J.A. (author)
This study describes a methodological framework designed for the systematic processing of experimental syngas fermentation data for its use by metabolic models at pseudo-steady state and at transient state. The developed approach allows the use of not only own experimental data but also from experiments reported in literature which employ a...
book chapter 2022
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Recalde Moreno Del Rocio, M.D.R. (author), Amladi, Amogh (author), Venkataraman, Vikrant (author), Woudstra, T. (author), Aravind, P.V. (author)
The low cost of electricity in some areas facilitates the adoption of high-temperature electrolysis plants for the large-scale storage of electricity. Supercritical water gasification (SCWG) is a promising method of syngas production from wet biomass. Additionally, it is a potential source of steam for electrochemical plants. However, the...
journal article 2022
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Almeida Benalcazar, E.F. (author), Noorman, H.J. (author), Maciel Filho, Rubens (author), Posada Duque, J.A. (author)
This study explores key success factors for ethanol production via fermentation of gas streams, by assessing the effects of eight process variables driving the fermentation performance on the production costs and greenhouse gas emissions. Three fermentation feedstocks are assessed: off-gases from the steel industry, lignocellulosic biomass...
journal article 2022
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Puiman, Lars (author), Perdigão Elisiário, M. (author), Crasborn, Lilo M.L. (author), Wagenaar, Liselot E.C.H. (author), Straathof, Adrie J.J. (author), Haringa, C. (author)
In gas fermentations (using O2, CO, H2, CH4 or CO2), gas-to-liquid mass transfer is often regarded as one of the limiting processes. However, it is widely known that components in fermentation broths (e.g., salts, biomass, proteins, antifoam, and organic products such as alcohols and acids) have tremendous impact on the volumetric mass transfer...
journal article 2022
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Puiman, L. (author), Abrahamson, Britt (author), van der Lans, R.G.J.M. (author), Haringa, C. (author), Noorman, H.J. (author), Picioreanu, C. (author)
Mass transfer limitations in syngas fermentation processes are mostly attributed to poor solubility of CO and H<sub>2</sub> in water. Despite these assumed limitations, a syngas fermentation process has recently been commercialized. Using large-sale external-loop gas-lift reactors (EL-GLR), CO-rich off-gases are converted into ethanol, with...
journal article 2022
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Sasayama, Tomone (author), Kosaka, Fumihiko (author), Liu, Yanyong (author), Yamaguchi, Toshiaki (author), Chen, S. (author), Mochizuki, Takehisa (author), Urakawa, A. (author), Kuramoto, Koji (author)
Integrated CO2 capture and conversion (ICCC) using dual-function materials (DFMs) is one of the key technologies for addressing critical global environmental and energy issues. DFMs generally consist of alkali or alkaline earth metals for CO2 capture and transition metal catalysts for CO2 conversion. In this study, we studied the ICCC to CO...
journal article 2022
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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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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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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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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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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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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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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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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
Searched for: subject%3A%22Syngas%22
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