Large-Scale Production and Use of Biomethane
Doctoral thesis, 2016
Chalmers, Energy and Environment, Energy Technology
Fuel Quality Analysis for Biogas Utilization in Heavy Duty Dual Fuel Engines
20th European Biomass conference & exhibition - Milan -June 2012,; (2012)p. 5-
Paper in proceedings
Alamia, A. Gardarsdòttir, S. Ò. Larsson, A. Norman, F. Thunman, H. “Comparison of decentralized and standalone thermochemical biorefineries at large scale”
Alamia, A. Larsson, A. Breitholtz, C. Thunman, H. “Performance of large-scale biomass gasifiers in a biorefinery, a state-of-the-art reference"
Design of an integrated dryer and conveyor belt for woody biofuels
Biomass and Bioenergy,; Vol. 77(2015)p. 92-109
Well-to-wheel analysis of bio-methane via gasification, in heavy duty engines within the transport sector of the European Union
Applied Energy,; Vol. 170(2016)p. 445-454
Process Simulation of Dual Fluidized Bed Gasifiers Using Experimental Data
Energy & Fuels,; (2016)p. 4017-4033
This thesis investigates the conversion of forest residues via indirect gasification for the production of biofuels, in particular, biomethane. Indirect gasification represents a key technology for achieving sustainability targets, since it is a scalable and highly efficient process for the conversion of biomass. This work summarises and places in context in context the experience acquired in the research groups at Chalmers and Göteborg Energi AB, during the dedicated experiments in the Chalmers Gasifier and the commissioning phase of the GoBiGas demonstration plant, the launch of which (2015) represented a world-first advancement for large scale production of biomethane. The state-of-the-art of indirect gasification is evaluated and several potential improvements are explored for future up-scaling to a full commercial plant.
The benefit of using biomass is assessed by the overall emissions from biomass conversion and biomethane use as fuel for the heavy-duty vehicles. Compared to fossil fuels, such as natural gas and diesel, the emissions are reduced approximately by two-thirds, establishing biomethane as a biofuel with high environmental impact. It is highlighted that the biomethane production process can be considerably improved at full commercial scale, further increasing the benefit of biomass utilization.
Chemical Process Engineering
Chalmers Power Central
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4189
Chalmers University of Technology
Hörsal HA3, Hörsalsvägen 4,Chalmers
Opponent: Lars Olof Nord, Norges Teknisk-Naturvetenskapliga Universitet, Norway