Title:
Techno-economic and Environmental Survey of an Industrial Gasification and Methanation Plant for the Production of Synthetic Methane from Tyre Crumb
Author(s):
Maitre, P.-A., Cren, J., Valin, S., Goudal, E., Philippe, E., Faure, J.-P.
Document(s):
Paper
Poster
Abstract:
A new potential industrial pathway to valorise rubber from worn tyres into synthetic methane is assessed via a techno-economic and environmental analysis. In this process, tyre crumb is firstly gasified in an Entrained Flow Reactor (EFR), which produces syngas that is further adjusted to a H2/CO ratio of 3, cleaned and finally reacted in a methanation reactor to produce synthetic methane. An industrial-scale gasifier (2.5 t/h) was modelled and all other elementary steps of the plant scaled accordingly. Two different pathways were considered: the first one, whereby the syngas adjustment is conducted by a Water Gas Shift (WGS) reactor, and a second one in which H2 produced by an electrolyser is added to the gas stream. Both pathways were shown to have a similar global energy yield, whilst the electrified process demonstrated a significant improvement of carbon use (89 % vs. 35 %). The specific CO2 content of the synthetic methane reached 400 kg/MWhLHV and 227 kg/MWhLHV for the pathway with WGS and the electrolyser, respectively. Finally the Levelised Cost Of methane (LCOCH4) was estimated to be equal to 105 €/MWhHHV for the pathway with WGS and 118 €/MWhHHV for the pathway with the electrolyser.
Keywords:
synthetic fuel, waste valorisation, electrolysis, carbon assessment
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Synthetic fuels from biomass and hydrogen
Event:
31st European Biomass Conference and Exhibition
Session:
5BV.6.10
Pages:
924 - 927
ISBN:
978-88-89407-23-3
Paper DOI:
10.5071/31stEUBCE2023-5BV.6.10
Price:
FREE
