Sour gas shift process over sulfided Co–Mo–K catalysts supported on carbon material - Support characterization and catalytic activity of catalysts

Katarzyna Antoniak-Jurak , Paweł Kowalik , Wiesław Próchniak , Wioletta Raróg-Pilecka , Piotr Kuśtrowski , Janusz Ryczkowski

Abstract

The possibility of porous structure improvement of commercial active carbon and its application as Co–Mo–K catalysts support for SGS (SGS — Sour Gas Shift) process has been investigated. Microporous activated carbon has been modified by thermal treatment at 1900 °C under helium atmosphere and then subjected to steam gasification in order to obtain supports with different textural properties. Supports have been characterized by used nitrogen physisorption, mercury porosimetry, thermogravimetry (TG), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Model samples of Co–Mo–K catalysts with the same content of Mo, Co and K (16 wt.% of MoO3 and 4 wt.% of CoO, and the promoter content expressed as K/month ratio was 0.1.) were prepared on modified carbon supports. Catalytic activity measurements were carried out in gradientless reactor in a kinetic region at low partial pressure of reagents. Through modification (in the controlled manner) of properties of carbon material it is possible to obtain good support for sour gas shift process. Simple relationship between surface area of the support and activity of the catalysts has been estimated. The highest activity in the SGS process was determined for the catalyst supported on NRO/1900/33.3. Carbon supported Co–Mo–K catalysts shown even twice higher activity compared to systems supported on flash calcined alumina.
Author Katarzyna Antoniak-Jurak
Katarzyna Antoniak-Jurak,,
-
, Paweł Kowalik
Paweł Kowalik,,
-
, Wiesław Próchniak
Wiesław Próchniak,,
-
, Wioletta Raróg-Pilecka (FC / CChT)
Wioletta Raróg-Pilecka,,
- Chair of Chemical Technology
, Piotr Kuśtrowski
Piotr Kuśtrowski,,
-
, Janusz Ryczkowski
Janusz Ryczkowski,,
-
Journal seriesFuel Processing Technology, ISSN 0378-3820, (A 35 pkt)
Issue year2015
Vol138
Pages305-313
Publication size in sheets0.5
Keywords in Englishsulfur-tolerant catalyst, sour water gas shift, carbon support, graphitized carbon material, coal gasification
DOIDOI:10.1016/j.fuproc.2015.05.029
URL http://www.sciencedirect.com/science/article/pii/S0378382015300230
Languageen angielski
File
1-s2.0-S0378382015300230-main.pdf 1.76 MB
Score (nominal)40
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2015 = 3.847 (2) - 2015=3.949 (5)
Citation count*
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back