CFD Optimization of DME Direct Synthesis from Syngas in Experimental Slurry Bed Reactor

In this research, optimization of direct synthesis of Dimethyl ether experimental reactor considering four main catalytic reactions of production was performed and validated. Effect of temperature, pressure and reactor length on the productivity of reactor was also studied. The reactor was modeled in steady state and isothermal situation. The equations were solved by CFD method of k-e model. The salvation of them for the model was performed separately assuming 10% intensity. Also the impacts of pressure parameters on CO conversion and DME selectivity wereexamined. Then the results were compared with those obtained under H-Mordente Zeolite modified catalyst with Alumina for methanol dehydration reaction and Cuo/Zno/Al2O3 for water gas shift and CO consumption reactions. For each case the maximum error was less than 11%. Taking into account the influence of reactor length increase on its productivity, the results showed that efficient reactor length was 15 cm.

Keywords:

Optimization , DME , Direct Synthesis , Experimental Reactor , CFD