| One objective of this research project was to derive a catalyst and operating conditions which would result in the conversion of synthesis gas to as near 100% methanol as possible with no by-products such as methane, dimethyl-ether, or higher alcohols. Another objective was to derive catalysts and conditions whereby CO, H;The catalyst preparation procedure is critical and is reported in detail herein. The catalyst has also been physically characterized in the used and unused conditions, and these observations are also reported. The mechanistic implications of the results of this study are discussed. Pathways involving the crossed aldol condensation (for the formation of primary aldehydes and alcohols) and the Claisen condensation (for the generation of ketones and secondary alcohols) for the higher alcohols synthesis are proposed.;Despite the attainment of the original objectives, changes in the catalyst composition and the preparation procedures to improve operating procedures and conditions are suggested by the data.;The crucial factors in the catalyst composition and processing conditions are as follows: (1) A relatively high proportion of Cu (4 molar) and Mn (3 molar), (2) Zn equivalent to approximately 25% (molar) of the Cu or Mn, (3) Co equivalent to approximately 0.1% to 0.6% (molar) of the Cu, (4) A stabilizer-promoter which consists of Cr... |
