HYDROGEN RECOVERY FROM FORMIC ACID PRODUCED BY CO? ELECTROCHEMICAL REDUCTION

• Main Author: Mutiara Adya P, Lintang
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/84916
• Institution: Institut Teknologi Bandung

CO2 mitigation technology through the CCUS (Carbon, Capture, Utilization, and Storage) system is rapidly advancing. One of the technologies that can be applied is the Electrochemical Reduction of CO2 into value-added chemicals, such as formic acid (HCOOH). Formic acid can be used as a hydrogen carrier. When the hydrogen is to be used, the formic acid needs to be decomposed back into hydrogen and CO2. The catalyst that can be used for this purpose is Pt and Au-based catalysts. This research varied formic acid concentrations (0.01 M, 0.05 M, 0.1 M, and 0.5 M) and catalyst types (Pt, Au, and Pt-Au wires). This research employed several characterizations including High-Performance Liquid Chromatography (HPLC), Gas Chromatography (GC), and a Dissolved Hydrogen Meter. Results indicated that a 0.5 M formic acid solution yielded the highest conversion rates with Pt, Au, and Pt-Au catalysts at 43%, 37.5%, and 58%, respectively. Despite this, hydrogen remained undetected, requiring estimated hydrogen production calculations based on produced CO2 and formic acid dehydrogenation reaction stoichiometry, peaking at a concentration of 0.436 ppm. Additionally, a transition from batch to continuous reactor systems was designed for operational viability, this system will then be utilized for subsequent experimental research groups.