文献类型：期刊文献

中文题名：NiMoRe/HZSM-5催化剂的制备及其催化脂肪酸甲酯加氢脱氧

英文题名：Preparation of NiMoRe/HZSM-5 Catalyst for Hydrodeoxygenation of Fatty Acid Methyl Ester

作者：郭效博[1,2] 江文夺[3] 侯文彪[3] 赵平[2] 徐俊明[1,2] 刘朋[1,2]

第一作者：郭效博

机构：[1]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;[2]西南林业大学西南地区林业生物质资源高效利用国家林业和草原局重点实验室,云南昆明650233;[3]广西梧州日成林产化工股份有限公司,广西梧州543000

年份：2024

卷号：44

期号：2

起止页码：119-126

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：CSTPCD;;Scopus;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：国家自然科学基金资助项目(32301548);江苏省科协青年科技人才托举工程(JSTJ-2023-XH019)。

语种：中文

中文关键词：脂肪酸甲酯;中试;加氢脱氧;烃基生物柴油

外文关键词：fatty acid methyl ester;pilot plant test;hydrodeoxygenation;hydrocarbon based biodiesel

分类号：TQ35

摘要：使用浸渍法制备了5 kg NiMoRe/HZSM-5催化剂,结合X射线衍射(XRD)、扫描电子显微镜(SEM)、电感耦合等离子原子发射光谱(ICP-OES)等表征手段对催化剂进行理化性质分析,并对该催化剂用于硬脂酸甲酯加氢脱氧反应的最佳条件进行探究。研究结果表明:相比3种商用催化剂,NiMoRe/HZSM-5中金属Ni具有较小颗粒,且分散均匀,BET比表面积(S_(BET))更大,为239.1 m^(2)/g,具有更好的催化活性。在温度260℃、0.3 g催化剂用量、反应时间4 h、初始H 2压力3 MPa的最优反应条件下,原料转化率和烷烃选择性均为100%,且催化剂稳定性较佳,第5次循环原料转化率仍高达96.1%,加氢脱氧(HDO)反应的选择性(S HDO/DCO),即HDO反应与脱羧脱羰(DCO)反应的比值由1.2降至0.56。将催化剂NiMoRe/HZSM-5用于脂肪酸甲酯无溶剂条件下的加氢脱氧反应放大实验后进行中试,采用2.8 L固定床对25 kg脂肪酸甲酯进行连续加氢性能评价,经过15循环后脂肪酸甲酯的转化率达到98%。
A 5 kg NiMoRe/HZSM-5 catalyst was prepared by impregnation method,and the physicochemical properties of the catalyst were analyzed using characterization techniques such as X-ray diffraction(XRD),scanning electron microscopy(SEM),and inductively coupled plasma optical emission spectrometry(ICP-OES).The optimal conditions for the catalyst in the hydrogenation deoxygenation reaction of stearic acid methyl ester were explored.The research results showed that,compared to three commercial catalysts,the metal nickel in NiMoRe/HZSM-5 had smaller and more uniformly dispersed particles,a larger BET specific surface area(S_(BET))of 239.1 m^(2)/g,and exhibited better catalytic activity.Under the optimal reaction conditions of 260℃,catalyst dosage of 0.3 g,reaction time of 4 hours,and initial H_(2) pressure of 3 MPa,both the raw material conversion rate and alkane selectivity were 100%.The catalyst demonstrated good stability,with a high raw material conversion rate of 96.1%even after the 5th cycle,and the ratio of hydrogenation deoxygenation(HDO)reaction to decarboxylation/decarbonylation(DCO)reaction decreased from 1.2 to 0.56.After scaling up the hydrogenation deoxygenation reaction of fatty acid methyl ester under solvent-free conditions using the NiMoRe/HZSM-5 catalyst,a pilot-scale evaluation was conducted on 25 kg of fatty acid methyl ester in a 2.8 L fixed bed reactor.After 15 cycles,the fatty acid methyl ester achieved a conversion rate of 98%.