Influence of Temperature and Pressure Change on Adiabatic and Isothermal Methanation Processes
- Publication date
- Publisher
- RTU
Abstract
Energy plans of many countries anticipate an
increased use of biomethane for energy supply, i.e., in power and
heat production as well as in the transport sector. Existing
infrastructure of natural gas storage, supply and application
provides a good platform to facilitate transfer to biomethane
utilization on a larger scale. One key element of the biomethane
system is the upgrade of the biomass-derived synthesis gas
originating from different sources, to a quality of natural gas
(SNG - Synthesis Natural Gas) via the methanation process for
further injection into the natural gas grid.. The maximisation of
efficiency of the methanation process is of critical importance in
order to make biomethane technology viable for wider
application. The aim of the study was to improve efficiency of the
methanation process by finding the optimum temperatures and
pressure. Theoretical modelling of adiabatic and isothermal
methanation processes by using thermodynamic equilibrium
calculations was introduced as a method for the study. The
results show the impact of temperature and pressure changes on
the overall efficiency of methane production. It can be concluded
from the study that knowledge about the relation between
temperature, pressure and the efficiency of the methanation
process makes it possible to optimize the process under various
biomass synthesized gas input conditions