Premium
Sustainable Production of Green Feed from Carbon Dioxide and Hydrogen
Author(s) -
Landau Miron V.,
Vidruk Roxana,
Herskowitz Moti
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201301181
Subject(s) - syngas , catalysis , spinel , fischer–tropsch process , carbon dioxide , chemistry , hydrogen , chemical engineering , carbon dioxide reforming , water gas shift reaction , selectivity , materials science , organic chemistry , metallurgy , engineering
Carbon dioxide hydrogenation to form hydrocarbons was conducted on two iron‐based catalysts, prepared according to procedures described in the literature, and on a new iron spinel catalyst. The CO 2 conversion measured in a packed‐bed reactor was limited to about 60 % because of excessive amounts of water produced in this process. Switching to a system of three packed‐bed reactors in series with interim removal of water and condensed hydrocarbons increased CO 2 conversion to as much as 89 %. The pure spinel catalyst displayed a significantly higher activity and selectivity than those of the other iron catalysts. This process produces a product called green feed, which is similar in composition to the product of a high‐temperature, iron‐based Fischer–Tropsch process from syngas. The green feed can be readily converted into renewable fuels by well‐established technologies.