This case study highlights the efficiency gains achieved in a hydrogen plant in Southern Europe through the implementation of innovative cleaning technology by IGS. The technology, focusing on the convection section cleaning of Steam Methane Reformers (SMRs), led to a substantial 4.9% radiant efficiency gain, improving the plant's overall performance. By applying IGS Cetek high emissivity refractory coatings to radiant surfaces, the plant witnessed enhanced hydrogen production capacity and a reduction in CO2 emissions, showcasing a commitment to sustainability. The projects undertaken during turnarounds in 2017 and 2023 resulted in immediate payback, operational flexibility, and increased production margins. The efficiency enhancements not only saved fuel but also allowed for greater throughput, contributing to a more sustainable and cost-effective hydrogen production process. The success of this project underscores the importance of leveraging innovative technologies to drive efficiency, reduce emissions, and enhance production capacity in the refining industry.