April 16, 2015
Journal Article

Direct Syngas Hydrogenation over a Co-Ni Bimetallic Catalyst: Process Parameter Optimization

Abstract

The CO hydrogenation activity of the Co-Ni bimetallic catalyst containing total metal loading less than 10 wt% was prepared via a wet impregnation method and was studied with respect to the reaction temperature and the catalyst composition. Among the hydrocarbons generated, small olefinic compounds between C2 and C7 (up to 40%) were the highest in the product mixture. The olefin to paraffin ratio for C3 hydrocarbon is around 8. For all variables tested, the product distribution contains up to 10% oxygenates along with the hydrocarbon compounds An acidic alumina containing reactor was added followed by the Co-Ni containing reactor to demonstrate the deoxygenation of oxygenates generated from the FTS process to improve the small olefinic fraction and the overall carbon yield to the valuable products.

Revised: August 27, 2015 | Published: April 16, 2015

Citation

Ramasamy K.K., M.J. Gray, H.M. Job, and Y. Wang. 2015. Direct Syngas Hydrogenation over a Co-Ni Bimetallic Catalyst: Process Parameter Optimization. Chemical Engineering Science 135. PNNL-SA-107517. doi:10.1016/j.ces.2015.03.064