Diesel-length aldehydes and ketones via supercritical Fischer Tropsch Synthesis on an iron catalyst

作者：Durham Ed; Zhang Sihe; Roberts Christopher^*

来源：Applied Catalysis A: General , 2010, 386(1-2): 65-73.

DOI：10.1016/j.apcata.2010.07.032

• Fischer Tropsch Synthesis
• Supercritical fluids
• Iron catalyst
• Aldehyde
• Ketone
• CO insertion
• Mechanism

Use of an iron-based catalyst (1 Fe:0.01 Cu:0.02 K by mole with and without 0.1 Zn) for Fischer Tropsch Synthesis with a supercritical hexanes reaction media resulted in a significant selectivity towards diesel-length aldehydes and methyl-ketones. Varying the residence time indicated that aldehydes are primary products that are converted by secondary reactions to olefins. Additionally, incorporation studies showed that octyl aldehyde and octyl alcohol incorporated into growing chains while the octyl olefin did not. The results of this work support n-alkanes and aldehydes as primary products, olefins as both primary and secondary products, CH(4) and CO(2) as secondary products, and an oxygenate mechanism for propagation.

• 出版日期2010-9-30