Abstract
The combined steam/dry reforming of clean biogas (CH4/CO2 = 50/50 v/v) represents an innovative way to produce synthesis gas (CO + H2) using renewable feeds, avoiding to deplete the fossil resources and increase CO2 pollution. The reaction was carried out to optimize the reaction conditions for the production of a syngas with a H2/CO ratio suitable for the production of methanol or fuels without any further upgrading. Ni-Rh/Mg/Al/O catalysts obtained from hydrotalcite-type precursors showed high performances in terms of clean biogas conversion due to the formation of very active and resistant Ni-Rh bimetallic nanoparticles. Through the utilization of a {Ni10Rh(CO)19}{(CH3CH2)4N}3 cluster as a precursor of the active particles, it was possible to promote the Ni-Rh interaction and thus obtain low metal loading catalysts composed by highly dispersed bimetallic nanoparticles supported on the MgO, MgAl2O4 matrix. The optimization of the catalytic formulation improved the size and the distribution of the active sites, leading to a better catalyst activity and stability, with low carbon deposition with time-on-stream.
Highlights
IntroductionWith the aim of achieving the reduction of greenhouse gas emissions, the production of biogas (BG)
With the aim of achieving the reduction of greenhouse gas emissions, the production of biogas (BG)has increased in the last decades, leading to a more efficient management of wastes [1,2]
When purified from main pollutants, the clean biogas (CB) obtained is a mixture of CH4 and CO2 [14] that can be used as such to produce electricity [15,16], heat [17,18] or after CO2 removal directly introduced in energy grid [19,20,21]
Summary
With the aim of achieving the reduction of greenhouse gas emissions, the production of biogas (BG). Syngas represents a crucial feedstock that can be converted into methanol or liquid fuels (Fischer–Tropsch synthesis). It is produced on a large scale by the conversion of fossil fuels, including methane reforming, coal gasification and heavy oil partial oxidation. It is attractive that allows the production of more sustainable fuels and valuable chemicals through renewable r to convert the industrial steam reforming (SR) = +206 existing plants, but the steam rich condition inhibits the CO conversion reducing the productivity of the process reforming
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
