Publications by Marco Wellinger

Related publications (5)

Development and Application of Devices for Online Trace Element Analysis of Thermal Process Gases from Woody Feedstocks

When using natural or waste wood in thermo-chemical conversion processes, the presence of a number of heteroatoms (e.g. sulfur, chlorine, potassium and sodium or heavy metals) may hinder the processes themselves as well as pose a threat to equipment and/or ...

EPFL2012

Online elemental analysis of process gases with ICP-OES: A case study on waste wood combustion

Christian Ludwig, Marco Wellinger

A mobile sampling and measurement system for the analysis of gaseous and liquid samples in the field was developed. An inductively coupled plasma optical emission spectrometer (ICP-OES), which is built into a van, was used as detector. The analytical syste ...

Elsevier2012

Sampling and Online Analysis of Alkalis in Thermal Process Gases with a Novel Surface Ionization Detector

Christian Ludwig, Marco Wellinger

When using biomass or waste as a feedstock for power production, alkalis are a major concern because of their negative effects on equipment. To investigate the release behavior of alkalis and the effectiveness of countermeasures, it is indispensable to qua ...

American Chemical Society2011

Gasification of Hay in a Bench Scale Fluidised Bed Reactor with Emphasis on the Suitability for Gas Turbines

Christian Ludwig, Marco Wellinger

Thermal gasification of pasture plants (hay) is so far considered as difficult mainly due to the high amount of inorganics (ash, alkalis). Under certain circumstances it could be an additional resource for power production. There has been some experiments ...

Elsevier2012

Relating alkali release from a wood pellet with combustion progress: A modified random pore model supportive study

Christian Ludwig, Rudolf Paul Wilhelm Jozef Struis, Marco Wellinger

This paper concerns a miniature gasifier fed with a constant ambient-pressure flow of air to study the pyrolysis and subsequent combustion stage of a single wood pellet at T = 800 ℃. The alkali release and the concentration of simple gases were recorded si ...

EnPress Publisher2024