Publications related to Underground coal gasification

Biodiesel from Bark and Black Liquor-A Techno-Economic, Social, and Environmental Assessment

A techno-economic assessment and environmental and social sustainability assessments of novel Fischer-Tropsch (FT) biodiesel production from the wet and dry gasification of biomass-based residue streams (bark and black liquor from pulp production) for tran ...

MDPI2024

A systemic study for enhanced waste heat recovery and renewable energy integration towards decarbonizing the aluminium industry

François Maréchal, Daniel Alexander Florez Orrego, Réginald Germanier

The aluminium remelting industry relies on natural gas to transform recycled aluminium into aluminium feedstock, entailing significant atmospheric emissions. Hydric resources are also affected as they are used as sinks of waste heat from the casting proces ...

2023

Next generation cogeneration system for industry - Combined heat and fuel plant using biomass resources

François Maréchal, Adriano Viana Ensinas, Ayse Dilan Celebi

The requirement for sustainable development has prompted the researchers to explore solutions for better utilization of renewable energy resources in the future. Biomass is a promising resource and it can be converted to multiple products and services incl ...

Elsevier2019

Exergy Recovery During Liquefied Natural Gas Regasification Using Methane as Working Fluid

François Maréchal, Francesca Belfiore, Francesco Baldi

The increased concerns about the effect of human activities on the climate have pushed natural gas among the most obvious solutions for the transition to a low-carbon economy. The growing importance and volumes of liquefied natural gas for transportation o ...

The Italian Association of Chemical Engineering2018

Design and demonstration of a prototype 1.5 kWth hybrid solar/autothermal steam gasifier

Sophia Haussener, Iacopo Guscetti

A 1.5 kWth hybrid solar/autothermal steam gasifier was designed and tested for continuously producing synthesis gas. Time-averaged responses to a series of inlet flow conditions were examined in a high-flux solar simulator. The gasifier consisted of a SiC ...

Elsevier Sci Ltd2018

Catalytic Supercritical Water Gasification: Continuous Methanization of Chlorella vulgaris

Christian Ludwig, Frédéric Vogel, Gaël Peng, Dominik Refardt

Continuous catalytic supercritical water gasification (CSCWG; 400 degrees C, 28 MPa) of microalgal biomass (Chlorella vulgaris) was carried out at the microalgae production site of ZHAW in Wadenswil (Switzerland) nonstop over a period of 100 h. Microalgae ...

American Chemical Society2017

Online Detection of Selenium and Its Retention in Reducing Gasification Atmosphere

Christian Ludwig, Andrea Testino, Mohamed Tarik, Adrian Hess

The emission of selenium from coal gasification processes can cause harm to the environment and downstream equipment. With upcoming legislation, reliable detection as well as control of such gas species become crucial. This study therefore addresses the de ...

American Chemical Society2016

Methane Production from Microalgae via Continuous Catalytic Supercritical Water Gasification: Development of Catalysts and Sulfur Removal Techniques

Gaël Peng

This doctoral thesis aims at demonstrating the technical feasibility of methane production from microalgae via continuous catalytic supercritical water gasification (CSCWG). This work focuses on three different research approaches: (i) assessment and impro ...

EPFL2015

Sulfur containing organic compounds in the raw producer gas of wood and grass gasification

Christian Ludwig, Tilman J. Schildhauer

The detailed description of gas streams in biomass gasification plants is necessary for the correct design and operation of these units. Sulfur containing compounds are usually present in biomass gasification gas, since sulfur is typically found in the fee ...

Elsevier2014

Thermo-economic and environmental model of microalgae-to-SNG conversion process through hydrothermal gasification

François Maréchal, Adriano Viana Ensinas, Alberto Mian, Kevin Arrandel

Due to its high photosynthesis conversion efficiency, microalgae are currently considered as a serious feedstock for next-generation biofuels production. One possible conversion process is the production of synthetic natural gas (SNG) through catalytic hyd ...

2013

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

Increasing Conversion Efficiency in Fuel Ethanol Production from Lignocellulosic Biomass by Polygeneration - and a Paradoxon between Energy and Exergy in Process Integration

François Maréchal, Martin Gassner

In the public and scientific debate on biofuels, ethanol from lignocellulosic biomass is generally the most popular alternative that may allow for a sustainable production. Compared to thermochemical processing of biomass which assures a complete conversio ...

2010

Thermo economic analysis for the optimal conceptual design of biomass gasification energy conversion systems

François Maréchal, Martin Gassner, David Brown

This study addresses the thermo economic assessment of a biomass gasification, gas cleaning and energy conversion process, with particular attention given to tar control and the communication of the process design rationale. Product distributions were esti ...

2006