Conversion of syngas to LPG and aromatics over commercial Fischer-Tropsch Catalyst and HZSM-5 in a dual bed reactor

Abstract

The commercial Co-based Fischer-Tropsch catalyst and HZSM-5 were tested in a single reactor process. FT catalyst was evaluated at 463 K, whereas HZSM-5 was evaluated at various temperatures (523, 573, and 623 K). The effect of syngas flow rate, HZSM-5 temperature and loading on liquefied petroleum gas (LPG) and aromatics selectivities were investigated. HZSM-5 addition suppressed the formation of CO2 and CH4, and remarkably enhanced the simultaneous formation of LPG and aromatics. The optimal operating conditions were identified as: THZM-5 = 623 K, HZSM-5 loading = 2.5 g, and GHSV = 4.8 Lsyngas/(gcat h).