The work investigated performances of several CoMoP and CoMoW catalysts supported on different carbon materials in catalytic hydrodeoxygenation (HDO) of pyrolysis oil in supercritical ethanol using formic acid as an in-situ hydrogen source. Among them, the CoMoP catalyst supported on ZnCl₂ activated sawdust carbon (ASC-Zn) and the CoMoW catalyst supported on multi-walled carbon nanotubes (MWNTs) showed the best HDO performance at both 300 °C and 350 °C for 2 h, obtaining higher upgraded oil yield, lower oxygen contents of the upgraded oils, and higher degrees of deoxygenation (DOD). Whereas the stability tests with three HDO cycles showed that both catalysts were slightly deactivated likely by active metals leach-out or coke/carbon deposition on active sites of the catalysts.

该工作研究了几种负载在不同碳材料上的 CoMoP 和 CoMoW 催化剂在超临界乙醇中使用甲酸作为原位氢源的热解油催化加氢脱氧 (HDO) 的性能。其中，ZnCl _{2负载的CoMoP催化剂}活性木屑碳 (ASC-Zn) 和负载在多壁碳纳米管 (MWNT) 上的 CoMoW 催化剂在 300 °C 和 350 °C 下均表现出最佳 HDO 性能 2 h，获得更高的提纯油收率，更低的氧含量升级后的油和更高程度的脱氧 (DOD)。而三个 HDO 循环的稳定性测试表明，两种催化剂都可能因活性金属浸出或催化剂活性位点上的焦炭/碳沉积而轻微失活。