文献类型：期刊文献

中文题名：Ni-Fe系列催化剂用于硬脂酸制备脂肪醇的性能研究

英文题名：Ni-Fe Catalysts for the Production of Fatty Alcohols From Stearic Acid

作者：郭效博[1,2] 张爱华[1] 刘朋[1,2] 肖志红[1] 徐俊明[2] 蒋剑春[2]

第一作者：郭效博

机构：[1]木本油料资源利用全国重点实验室,湖南省林业科学院,湖南长沙410004;[2]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏省林业资源高效加工利用协同创新中心,江苏南京210042

年份：2025

卷号：45

期号：5

起止页码：72-78

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：;北大核心:【北大核心2023】；

基金：木本油料资源利用国家重点实验室开放课题(GZKF202213);国家自然科学基金资助项目(32301548)。

语种：中文

中文关键词：脂肪醇;催化剂载体;加氢脱氧

外文关键词：fatty alcohol;catalyst support;hydrodeoxygenation

分类号：TQ35

摘要：以Ni、Fe金属为活性组分,γ-Al_(2)O_(3)、SBA-15和HZSM-5作载体,制备了不同的Ni-Fe催化剂,探讨了其对催化硬脂酸转化为脂肪醇的影响。进一步考察了反应温度、初始H_(2)压力、反应时间等工艺条件,发现Ni-Fe/HZSM-5不是制备脂肪醇的理想催化剂,而Ni-Fe/γ-Al_(2)O_(3)和Ni-Fe/SBA-15催化剂分别在200℃、4 MPa初始H_(2)压力、4 h和190℃、3 MPa初始H_(2)压力、3 h条件下表现出较佳的催化性能,此时硬脂酸转化率均为100%,其脂肪醇产物选择性分别为98.8%和99.4%。结合XRD、BET、H_(2)-TPR、NH3-TPD等表征手段对催化剂进行理化性质分析,研究结果表明:Ni-Fe/HZSM-5、Ni-Fe/SBA-15催化剂生成了FeNi_(3)合金物种,而Ni-Fe/γ-Al_(2)O_(3)催化剂仅检测到了Fe_(3)O_(4)物种,Ni-Fe/HZSM-5催化剂因较强酸性不利于脂肪醇的生成,而Ni-Fe/γ-Al_(2)O_(3)和Ni-Fe/SBA-15催化剂因较低的酸性,用于硬脂酸加氢脱氧时的主要产物为脂肪醇。其中,Ni-Fe/SBA-15催化剂较高的比表面积(404.81 m^(2)/g)使其在脂肪醇制备的过程中表现最佳。
The catalytic conversion of stearic acid to fatty alcohols using Ni and Fe metals as active components was studied in the presence ofγ-Al_(2)O_(3),SBA-15,and HZSM-5 supports.Further investigation of the reaction conditions,including temperature,initial H_(2)pressure,and reaction time,revealed that Ni-Fe/HZSM-5 was not a suitable catalyst for fatty alcohol preparation while Ni-Fe/γ-Al_(2)O_(3)and Ni-Fe/SBA-15 catalysts exhibited optimal performance at 200℃,4 MPa initial H_(2)pressure,4 h and 190℃,3 MPa initial H_(2)pressure,3 h,respectively.Under these conditions,both catalysts achieved 100%conversion of stearic acid and fatty alcohol selectivities of 98.8%and 99.4%,respectively.The physicochemical properties of the catalysts were analyzed using XRD,BET,H_(2)-TPR,NH3-TPD,and other characterization techniques.The results showed that Ni-Fe/HZSM-5 and Ni-Fe/SBA-15 catalysts formed FeNi_(3)alloy species,while Ni-Fe/γ-Al_(2)O_(3)catalysts formed Fe_(3)O_(4)species.Ni-Fe/HZSM-5 was not conductive to fatty alcohol generation due to its strong acidity.However,due to the low acidity of Ni-Fe/γ-Al_(2)O_(3)and Ni-Fe/SBA-15,the main product used in the hydrodeoxygenation of stearic acid primarily was fatty alcohols.Among them,the Ni-Fe/SBA-15 catalyst demonstrated superior performance in fatty alcohol production due to its high specific surface area.