Chinese Journal of Catalysis ›› 2012, Vol. 33 ›› Issue (12): 1938-1944.DOI: 10.1016/S1872-2067(11)60460-9

• Research papers • Previous Articles     Next Articles

Synthesis of Mixed Alcohols from CO Hydrogenation over Iron and Nickel Metal Phosphide Catalysts

SONG Xiangen1,3, DING Yunjie1,2,*, CHEN Weimiao1, DONG Wenda1,3, PEI Yanpeng1,3, ZANG Juan1,3, YAN Li1, LÜ Yuan1   

  1. 1Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, Liaoning, China; 2State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 3Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-09-10 Revised:2012-10-08 Online:2013-01-18 Published:2012-12-18

Abstract: A series of silica supported iron and nickel metal phosphides with different molar ratios of P to metal were synthesized by the temperature programmed reduction method. Their catalytic performance for CO hydrogenation in a fixed bed reactor was tested with the conditions of 553 K, 5.0 MPa, and H2:CO = 2 (molar ratio). With the FePx/SiO2 catalysts (x denotes the molar ratio of P to metal), the product was a mixture of oxygenates containing methanol as the major component. With the NiPx/SiO2 samples, the liquid product was mainly methanol. The Fe2P, Fe3P, Ni, Ni2P, Ni3P, and Ni12P5 phases were stable during CO hydrogenation, while most of the metallic Fe phase transformed into iron carbide.

Key words: carbon monoxide hydrogenation, oxygenates, metal phosphides, silica, iron phosphide, nickel phosphide