Investigating copper impregnated 3D printed Al2O3 catalyst for methanol steam reforming

Abstract

Using 3D printing to fabricate catalysts is regarded as a revolutionary process with numerous advantages. This technique can enhance the efficiency and cost-effectiveness of catalyst synthesis. Methanol steam reforming (MSR) is a promising technology for in-vehicle hydrogen generation. In this study, a wood-pile structured 3D Cu/Al₂O₃ catalyst was manufactured using a 3D printing process and evaluated for MSR reaction in a fixed bed reactor operating at atmospheric H₂ pressure. The characterization study of the 3D catalyst was carried out in terms of textural properties, composition, morphology, and active sites. The MSR reaction was performed for different operating parameters, such as reaction temperature, WHSV, and stability. In similar reaction conditions, we compared this 3D Cu/Al₂O₃ catalyst with a bead-type Cu/Al₂O₃ catalyst. The rate of reaction for both catalysts was calculated using the activity data. 3D Cu/Al₂O₃ catalyst exhibits a higher value than bead-type catalyst, indicating that 3D Cu/Al₂O₃ catalysts possess higher active sites, which is in accordance with their catalytic activity.