CATALYST DEVELOPMENT FOR METHANOL SYNTHESIS FROM SYNTHESIS GAS CONTAINING CARBON DIOXIDE

• Main Author: Damey Anugrah, Ezard
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/74061
• Institution: Institut Teknologi Bandung

Nowadays, the world energy mainly relies on fossil fuels which produce high CO2. One of the CO2 emission handling methods that currently developed is by carbon capture and utilization, which by reutilizing the produced CO2, specifically by convert it into useful chemicals. One of the chemicals that can be synthesized from CO2 is methanol Methanol is a basic chemical that can bes used as fuels dan as feedstock to produce other chemicals. The process to convert CO2 into methanol is by hydrogenation reaction. This reaction involves catalyst. At industrial scale, methanol is produced by synthetic gas hydrogenation with low CO2 composition by copper based catalyst. However, by using pure CO2 gas feed, this catalyst encounters some problems, such as low conversion and selectivity, as well as fast deactivation. Based on previous researches, one of the ways to increase the activity of the catalyst is by promotor addition. In this research, the effects of Ga2O3 and MgO promotors addition on Cu/ZnO/Al2O3 (CZA) catalyst is being analyzed. The catalyst is synthesized using the combination of coprecipitation method. After that, the catalyst will be characterized using XRF, and N2 adsorption-desorption). The catalyst evalution will take place in vinci reactor. This evaluiton will be done at 50 barg and 250oC. Based on the conducted characterization, it is found that the addition of Ga and Mg increase the surface area and pore volume of catalyst. In the activity test of catalyst, CZA catalyst with the addition of Mg gives the highest CO2 conversion, follow by CZA catalyst without added promotor and with the addition of Ga. Based on the conducted economic analysis, it is found that producing metanol from CO2 is more ecpansive than from syngas.