Searched for: subject%3A%22Syngas%22
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Allaart, M.T. (author), Korkontzelos, Charilaos (author), Sousa, Diana Z. (author), Kleerebezem, R. (author)
Syngas fermentation has gained momentum over the last decades. The cost-efficient design of industrial-scale bioprocesses is highly dependent on quantitative microbial growth data. Kinetic and stoichiometric models for syngas-converting microbes exist, but accurate experimental validation of the derived parameters is lacking. Here, we...
journal article 2024
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Almeida Benalcazar, E.F. (author)
The mitigation of global warming requires an urgent shift from the fossil fuel-based productive matrix currently in place. Technological platforms are being developed to reduce the amount of carbon of fossil origin, which is emitted to the atmosphere as a side-product from the production of energy. Gas mixtures containing CO, H2 and CO2 are...
doctoral thesis 2023
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Allaart, M.T. (author)
One of the main challenges society currently deals with is the depletion of fossil fuels. To navigate this issue, we must embrace the concept of circularity and turn waste into a resource. Waste streams are omnifarious and their conversion into new chemical building blocks is not always trivial. Luckily, we can take a look at nature’s problem...
doctoral thesis 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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Shijaz, H. (author), Gallucci, Fausto (author), Straathof, Adrie J.J. (author), Posada Duque, J.A. (author)
Syngas fermentation is a biochemical pathway to produce ethanol and has been commercialized successfully. The economic viability of this process could be further improved to become more competitive in the existing ethanol market. Improving gas utilization is the key, and can be done by recycling the unreacted syngas. This work is an early...
book chapter 2023
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Vos, Josephine (author), Ramirez, Andrea (author), Pérez-Fortes, Mar (author)
Reaching our climate goals will require urgent advancements in the development of fossil-free technologies. Solid-oxide electrolysis (SOE) at high-temperature is a promising candidate for combining CO₂ utilization and renewable electricity use. Explorative techno-economic analyses are being performed to understand the full plant design...
book chapter 2023
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Jankovic, T.J. (author), Straathof, Adrie J.J. (author), Kiss, A.A. (author)
Syngas fermentation is used industrially to produce diluted bioethanol (about 1–6 wt%). This research study proposes a novel downstream process that recovers bioethanol in an energy-efficient and cost-effective manner, improves fermentation yield by recycling all fermentation broth components (microbes, acetate and water), and is designed for...
journal article 2023
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Zhao, Guofeng (author), Moulijn, J.A. (author), Kapteijn, F. (author), Dautzenberg, Frits M. (author), Xu, Bin (author), Lu, Yong (author)
Heterogeneous catalysis plays a pivotal role in the current chemical and energy vectors production. Notably, to fully utilize the intrinsic activity and selectivity of a catalyst, the chemical reactor has to be designed and operated optimally to achieve enhanced heat/mass transfer, well-defined contact time of reactants, uniform flow pattern,...
journal article 2023
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Puiman, L. (author), Almeida Benalcazar, E.F. (author), Picioreanu, C. (author), Noorman, H.J. (author), Haringa, C. (author)
In large-scale syngas fermentation, strong gradients in dissolved gas (CO, H<sub>2</sub>) concentrations are very likely to occur due to locally varying mass transfer and convection rates. Using Euler-Lagrangian CFD simulations, we analyzed these gradients in an industrial-scale external-loop gas-lift reactor (EL-GLR) for a wide range of...
journal article 2023
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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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Puiman, L. (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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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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Sasayama, Tomone (author), Kosaka, Fumihiko (author), Liu, Yanyong (author), Yamaguchi, Toshiaki (author), Chen, Shih Yuan (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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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), 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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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
Searched for: subject%3A%22Syngas%22
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