Middle distillates production via Fischer–Tropsch synthesis with integrated upgrading under supercritical conditions

— filed under:

S. Zhang, R. Xu, E. Durham, and C. B. Roberts, “Middle distillates production via Fischer–Tropsch synthesis with integrated upgrading under supercritical conditions,” AIChE J., vol. 60, no. 7, pp. 2573–2583, May 2014.

Type Journal Article
Author Sihe Zhang
Author Rui Xu
Author Ed Durham
Author Christopher B. Roberts
URL http://dx.doi.org/10.1002/aic.14493
Volume 60
Issue 7
Pages 2573-2583
Publication AIChE Journal
ISSN 1547-5905
Date May 22, 2014
Journal Abbr AIChE J.
DOI 10.1002/aic.14493
Abstract A vertically aligned fixed-bed reactor system with a cascade of three sequential catalyst beds has been used to incorporate Fischer–Tropsch synthesis (FTS) in the first bed, oligomerization (O) in the second bed, and hydrocracking/isomerization (HC or C) in the third bed (FTOC). Compared to gas phase FTS (GP-FT) alone, gas phase FTS with the subsequent upgrading beds (GP-FTOC) is demonstrated to result in a reduction in the olefin selectivity, a reduction in the C26+ selectivity, and a marked enhancement in the production of branched paraffins and aromatics. Utilization of supercritical hexane as the reaction medium in supercritical FTS (SC-FT) and supercritical phase FTOC (SC-FTOC) resulted in a significant reduction in both CH4 selectivity and CO2 selectivity. Interestingly, significant amounts of aldehydes and cyclo-paraffins were collected in SC-FT and in SC-FTOC, respectively, while not being observed in traditional gas phase operation (both GP-FT and GP-FTOC). © 2014 American Institute of Chemical Engineers AIChE J, 60: 2573–2583, 2014


Keywords:

 

  • Carbon
  • Carbon Dioxide
  • Catalysts
  • Fischer–Tropsch synthesis
  • Fuels
  • Hydrocarbons
  • Hydrocracking
  • Isomerization
  • Liquids
  • Middle distillates
  • Multibed reaction system
  • Oligomerization
  • Paraffin
  • Products
  • Supercritical phase conditions
  • Transport

Download File

citation.ris — Octet Stream, 1Kb

 
Document Actions
Personal tools