Loading...

Effect of recycle gas composition of the performance of Fischer-Tropsch catalyst

Rohani, A. A ; Sharif University of Technology

1105 Viewed
  1. Type of Document: Article
  2. DOI: 10.1080/10916460902744596
  3. Abstract:
  4. In this study, the influence of CO2 and CH4 on the performance and selectivity of Co-Ru/Al2O3 catalyst is investigated by injection of these gases (0-20 vol.% of feed) to the feed stream. The effect of temperature and feed flow rate are also inspected. The results show that low amounts of CO2 in the feed stream do not change the catalyst activity, but increasing the amount of CO2 (more than 10 vol.%), causes the CO conversion to decrease and the selectivity of heavy components to increase. Methane acts as an inert gas and does not affect the catalyst performance. Increasing feed flow rate has a negative effect on both CO conversion and heavy component selectivity. By raising the temperature, CO conversion will increase but there are more volatile components in the product. The effect of CO2 on catalyst deactivation is also investigated and a mechanism is suggested to explain the negative influence of CO2 on catalyst deactivation
  5. Keywords:
  6. Alumina ; Fischer-Tropsch ; Selectivity ; Catalyst performance ; CO conversion ; Cobalt catalyst ; Effect of CO ; Effect of temperature ; Feed flow rate ; Feed streams ; Fischer Tropsch ; Fischer-Tropsch catalysts ; Gas compositions ; Negative influence ; Volatile components ; Carbon dioxide ; Catalyst activity ; Catalyst deactivation ; Catalyst poisoning ; Cobalt ; Hydraulics ; Inert gases ; Methane ; Catalyst selectivity
  7. Source: Petroleum Science and Technology ; Volume 28, Issue 5 , 2010 , Pages 458-468 ; 10916466 (ISSN)
  8. URL: http://www.tandfonline.com/doi/abs/10.1080/10916460902744596?journalCode=lpet20