Abstract: 

The present invention discloses a reactor to perform a low-temperature methane splitting process with high hydrogen productivity, and long-term stability without catalyst replacement. It also relates to a solid catalyst that is highly active for methane splitting at reaction temperatures ≤ 650 °C, does not undergo irreversible physical degradation due to carbon growth, and can be integrated in the form of a thin film on a macro support which is loaded and sealed in the reactor. The reactor comprises two compartments: a first compartment that hosts the catalytic system, wherein the methane splitting reaction occurs, and a second compartment that hosts a gas separation module.

Background: 

Currently, most hydrogen produced worldwide comes from the reforming of natural gas or coal gasification. These processes are gradually becoming environmentally less appealing, due to extensive CO2 emissions. Therefore, the method of methane splitting holds significant promise for disrupting the current paradigm also due to the ongoing advancements in reactor design, catalyst development and process optimization.

Benefits: 

This innovative reactor technology addresses the global demand for hydrogen production while eliminating CO2 emissions. Unlike existing methane splitting system on the market, this technology not only facilitates the separation but also recovery of graphitic carbon materials. These materials hold significant economic value and, crucially, their removal prevents catalyst deactivation, ensuring sustained operational efficiency.

This advanced approach positions the reactor as a superior solution in the hydrogen production industry, offering both environmental and economic benefits.

Potential comercial use/applications: 

The current invention may have an important market share in hydrogen production, as it would allow economically viable hydrogen production without CO2 emissions, which is not currently provided by any classic technology. The introduction of this reactor represents a major advancement in the field, providing a cleaner, more cost-effective solution for hydrogen production that meets the growing global demand for environmentally friendly energy alternatives.

Co-owners: 
University of Porto; Consejo Superior de Investigaciones Científicas (CSIC); Universitat Politecnica de Valencia (UPV)