Efficient and selective electrochemical hydrogenation (ECH) of organic compounds is crucial for global sustainability; offering both chemical feedstock circularity and routes to generate synthetic fuels, reducing fossil fuel reliance. This study focuses on ECH of benzoic acid (BA), phenol (P), and guaiacol (G), commonly appearing as mixtures in potential oils for upgrade. The impact of various conditions on the hydrogenation process was elucidated using a carbon-supported PtRu catalyst; assessing initial concentrations/mixtures, temperatures, and current densities.