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Ni改性的Cu/Mn/ZrO2 是CO加氢合成低碳混合醇的有效催化剂 ,在较为温和的条件 (T =573K ,p =8 0MPa ,GHSV =50 0 0h- 1 )下 ,醇的时空产率为 0 36g/(ml·h) ,其中C2 +OH的选择性约 30 % .产物由直链C2 +OH和以异丁醇为主的支链醇构成 .温度和压力的提高明显促进了异丁醇的生成 .可以认为 ,Ni的添加对直链醇的生成有决定性作用 ,而异丁醇的生成取决于Zr的作用 .反应过程中甲烷等副产物的生成及水煤气变换反应可控制在合理的范围内 .另外 ,K助剂的加入可进一步促进C2 +OH的生成 .
Ni modified Cu / Mn / ZrO2 is an effective catalyst for the hydrogenation of CO to low-carbon mixed alcohols. Under mild conditions (T = 573K, p = 80MPa and GHSV = 50000h-1) The yield was 0 36 g / (ml · h), of which the selectivity for C2 + OH was about 30% .The product consisted of straight-chain C2 + OH and branched-chain alcohols dominated by isobutanol.The improvement of temperature and pressure obviously promoted The formation of isobutanol can be considered that the addition of Ni has a decisive effect on the formation of linear alcohols and the formation of isobutanol depends on the action of Zr.The formation of by-products such as methane and water-gas shift reaction can be controlled during the reaction In a reasonable range.In addition, K additives can further promote the formation of C2 + OH.