A novel experimental method to determine substrate uptake kinetics of gaseous substrates applied to the carbon monoxide-fermenting Clostridium autoethanogenum

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...

Conceptual design of pre-treatment units for co-electrolysis of CO₂ and water

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...

Modelling syngas fermentation in hollow fibre membrane reactors

Design, construction, and testing of a gasifier-specific solid oxide fuel cell system

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...

Bifunctional catalysts for the direct production of liquid fuels from syngas

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)...

CO2 capture using liquid crystals: Selectivity analysis for CO2 capture from syngas

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...

On the gasification of biomass in a steam-oxygen blown CFB gasifier with the focus on gas quality upgrading: Technology background, experiments and mathematical modeling

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...

Catalytic heavy tar reduction in synthetic natural gas reduction

Experimental study towards selective catalytic conversion of raw synthesis gas.

Using an agent-based model for analysing the robustness of a syngas cluster

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...

A novel 'green' process for cheaper production of furfural from biomass

Design of a plant producing 500,000 tonnes/annum synthetic oil products from natural gas, using Fischer-Tropsch technology

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