EVALUATION OF CAPTURED CO2 AND WASTE H2 AS POTENTIAL FEEDSTOCK FOR METHANOL PRODUCTION

Abstract

Global warming is the critical issue that is the result of Greenhouse Gases (GHGs) emission. Carbon dioxide (CO2) is concerned to be major GHGs. Thus, Carbon dioxide utilization is the promising pathway to reduce the emission of CO2. To utilize CO2, waste hydrogen from sodium methoxide production is used to produce methanol which can be recycled as reactant of sodium methoxide synthesis. Carbon dioxide hydrogenation process is used for produce methanol from CO2 and waste H2 from various size of sodium methoxide production process. In every size of methanol production process, methanol which produce from the process is 16.3% of required methanol for sodium methoxide process and CO2 is consumed 1.34 kg per 1 kg of methanol which is produced from process. However, the economic feasibility of methanol process is depended on size of process. The process start to be profitable at 9.5 folds of present actual sodium methoxide production capacity with 17 years payback period (P.O. period = 16.9) and profitability at the 20th years of project near to 1 (PI = 1.02). The larger capacity or production of more valuable product from methanol may be improve the economic feasibility of process.