Optimization of Rhodium-Based Catalysts for Mixed Alcohol Synthesis – 2012 Progress Report

Gerber, Mark A. ; Gray, Michel J. ; Albrecht, Karl O. ; Thompson, Becky L.

Pacific Northwest National Laboratory (U.S.)

关键词: Rhoduim-Based Catalysts, Mixed Alcohol Synthesis;   

DOI  :  10.2172/1110484
RP-ID  :  PNNL-22659
RP-ID  :  AC05-76RL01830
RP-ID  :  1110484

美国|英语

来源: UNT Digital Library

【 摘 要 】

Pacific Northwest National Laboratory has been conducting research to investigate the feasibility of producing mixed alcohols from biomass-derived synthesis gas (syngas). In recent years, this research has primarily involved the further development of catalysts containing rhodium and manganese based on the results of earlier catalyst screening tests. Testing continued in FY 2012 to further improve the Ir-promoted RhMn catalysts on both silica and carbon supports for producing mixed oxygenates from synthesis gas. This testing re-examined selected alternative silica and carbon supports to follow up on some uncertainties in the results with previous test results. Additional tests were conducted to further optimize the total and relative concentrations of Rh, Mn, and Ir, and to examine selected promoters and promoter combinations based on earlier results. To establish optimum operating conditions, the effects of the process pressure and the feed gas composition also were evaluated.