| 赵焕利,蒋惠亮,赵 起，等.油脂加氢镍基纳米催化剂的研究[J].中国油脂,2015,40(8):.[ZHAO Huanli,JIANG Huiliang,ZHAO Qi,etc.Ni-based nano hydrogenation catalyst for oils and fats[J].China Oils and Fats,2015,40(8):.] |
| 油脂加氢镍基纳米催化剂的研究 |
| Ni-based nano hydrogenation catalyst for oils and fats |
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| DOI： |
| 中文关键词: 催化剂 镍 载体 纳米碳酸钙 加氢 |
| 英文关键词:catalyst Ni carrier nano calcium carbonate hydrogenation |
| 基金项目: |
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| 摘要点击次数: 1075 |
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| 中文摘要: |
| 以纳米碳酸钙为载体，采用沉淀法制备了镍基纳米催化剂，以棕榈油的加氢为探针表征其活性。分析了制备方法、负载量、焙烧温度、还原温度及促进剂对催化剂活性的影响。研究结果显示：以纳米碳酸钙为载体，在镍负载量为30%左右、添加铝（镍与铝原子摩尔比6∶[KG-2mm]1）或钴（镍与钴原子摩尔比600∶1）为促进剂、焙烧温度350℃、还原温度400℃时，采用沉淀法制备的催化剂活性最高，可使氢化后的棕榈油碘值（I）降到0.5 g/100 g以下（催化剂用量占棕榈油质量的0.07%），表明该催化剂的催化性能可达工业要求水平。此外，采用相对廉价的纳米碳酸钙作载体，镍为主要活性组分，操作步骤简单，催化剂性能稳定，活性较高，经济效益好，具有较好的应用前景。 |
| 英文摘要: |
| Ni-based nano hydrogenation catalyst was prepared by precipitation with nano calcium carbonate as carrier,and its activity was characterized by the hydrogenation of palm oil. The effects of preparation method, loading amount, calcination temperature, reduction temperature and promoter on the activity of catalyst were investigated. The results showed that under the conditions of loading amount of Ni approximately 30%, Al(molar ratio of Ni to AL 6∶1) or Co(molar ratio of Ni to Co 600∶1) added as promoter, calcination temperature 350℃, reduction temperature 400℃ with nano calcium carbonate as carrier, the catalyst prepared by precipitation had the highest activity with the iodine value of hydrogenated palm oil falling to below 0.5 gI/100 g (catalyst dosage was accounted for 0.07% of palm oil mass), which indicated that the catalytic performance of the catalyst could meet the industrial requirements. In addition, the preparation method was simple with relatively cheaper nano calcium carbonate as carrier and Ni as main active component, and the catalyst prepared had good application prospect with steady performance,higher activity and good economic benefit. |
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