Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide In the context of power to gas (PtG) technology, different studies are developed to convert carbon dioxide and hydrogen into methane (synthetic natural gas, SNG). The aim of this technology consists of storing renewable energy and reducing greenhouse gas emissions with a net zero process. The present study focuses on the analysis of a small pilot plant designed for the methanation of CO 2 to produce synthetic methane. The size of this plant is set to produce 1 Nm 3 /h of synthetic methane by using a monotube plug flow reactor (PFR) filled with a Ni-based catalyst, which allows the CO 2 methanation to occur according to the Sabatier reaction. The study analyzes various process parameters over a 10 h period to assess the system’s dynamic behavior, including CO 2 conversion and CH 4 content. The experimental setup features enhanced temperature control through a diathermic oil circuit and optimized reactor design, ensuring stability and reducing hot spot risks. This configuration minimizes pressure drops, leading to an efficient performance. During the process, CO 2 conversion of approximately 70% and CH 4 composition of 63.4 vol % are reached. Overall, the system effectively handles fluctuations in renewable energy supply and demonstrates operability under constant reactants flowrates.
Authors: Paolo Deiana, Leonardo Colelli, Claudia Bassano, Yuri De Pra, Giovanni Testa, Nicola Verdone, Giorgio Vilardi
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Award: G7700486221
OpenAlex ID: W4407172976