{"id":4572,"date":"2021-09-30T18:01:57","date_gmt":"2021-09-30T10:01:57","guid":{"rendered":"http:\/\/woodrefinery.com\/zhenfang\/?p=4572"},"modified":"2021-09-30T18:05:12","modified_gmt":"2021-09-30T10:05:12","slug":"4572-2","status":"publish","type":"post","link":"https:\/\/woodrefinery.com\/zhenfang\/4572-2\/","title":{"rendered":""},"content":{"rendered":"

\u822a\u7a7a\u71c3\u6599\u5408\u6210<\/strong>Lanthanide catalyst for synthesis of jet fuel intermediates<\/strong><\/p>\n

Recently, master student Miss Lu-ping Li supervised by Dr. Xiao Kong and Prof. Zhen Fang<\/strong> published a research article in Molecular Catalysis about the synthesis of jet fuel intermediates.<\/p>\n

Jet fuel precursors (4-(2-furyl)-3-buten-2-one (FAc) and 1,5-di-2-furanyl-1,4-pentadien-3-one (F2<\/sub>Ac)) can be produced from aldol condensation between furfural and acetone over basic catalysts. However, there is still a need to develop efficient alkaline catalysts and understand the role of alkaline sites. In this work, La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub> catalyst was successfully prepared by coprecipitation and the effect of preparation conditions on the properties and catalytic performance was investigated. Experiments showed that La2<\/sub>O2<\/sub>CO3<\/sub> and La2<\/sub>O3<\/sub> were formed after calcination, and the activity was greatly improved by the introduction of La2<\/sub>O2<\/sub>CO3<\/sub>. At higher coprecipitation pH, rod-shaped La2<\/sub>O2<\/sub>CO3<\/sub> was formed, exposing basic La3+<\/sup>-O2-<\/sup> sites for good performance in aldol condensation reactions. The catalytic performance of La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub> in aldol condensation of furfural with acetone was also evaluated and compared with that of Al2<\/sub>O3<\/sub>, La2<\/sub>O3<\/sub>, La2<\/sub>O3<\/sub>-Al2<\/sub>O3<\/sub>, La(OH)\u2083\/Al2<\/sub>O3<\/sub> and La2<\/sub>O2<\/sub>CO3<\/sub>\/Al2<\/sub>O3<\/sub>. A total conversion of furfural can be realized with F2<\/sub>Ac yield of 67.8% at a furfural\/acetone ratio of 1\/1 and 90 o<\/sup>C, with a FAc yield of 25.8% at the same time. The deactivation mechanism of the La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub> catalyst was also studied.<\/p>\n

\"\"<\/p>\n

Liquid fuel precursors can be produced by furfural-acetone aldol condensation over La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub> catalyst with C13 yield of 67.8%\uff08\u901a\u8fc7\u7ce0\u919b\u548c\u4e19\u916e\u4e4b\u95f4\u7684\u7f9f\u919b\u7f29\u5408\u5728La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub>\u50ac\u5316\u5242\u4e0a\u5236\u5907\u6db2\u4f53\u71c3\u6599\u4e2d\u95f4\u4f53\uff0cC13\u4ea7\u7387\u4e3a67.8%\uff09<\/strong><\/p>\n

Related results were published in Molecular Catalysis:<\/p>\n

Lu-ping Li, Zhen Fang*<\/strong>, Xiao Kong*, Wen-Jie Cong, Molecular Catalysis, 515, 111893 (2021). https:\/\/doi.org\/10.1016\/j.mcat.2021.111893.<\/p>\n

—————————————–<\/p>\n

\u9567\u7cfb\u50ac\u5316\u5242\u5408\u6210\u822a\u7a7a\u71c3\u6599\u4e2d\u95f4\u4f53<\/strong><\/p>\n

\u6700\u8fd1\uff0c\u7855\u58eb\u751f\u674e\u8def\u5e73\uff08\u5973\uff09\u5728\u65b9\u771f\u8001\u5e08<\/strong>\u548c\u5b54\u6653\u535a\u58eb\u7684\u6307\u5bfc\u4e0b\uff0c\u5728\u56fd\u9645\u5b66\u672f\u671f\u520aMolecular Catalysis\uff08IF5.062\uff0cQ2\uff09\u4e0a\u53d1\u8868\u5173\u4e8e\u9567\u7cfb\u50ac\u5316\u5242\u7528\u4e8e\u5408\u6210\u822a\u7a7a\u71c3\u6599\u4e2d\u95f4\u4f53\u7684\u7814\u7a76\u6587\u7ae0\u3002<\/p>\n

\u901a\u8fc7\u7ce0\u919b\u548c\u4e19\u916e\u7684\u7f9f\u919b\u7f29\u5408\u53ef\u4ee5\u5728\u78b1\u6027\u50ac\u5316\u5242\u4e0a\u83b7\u5f97\u822a\u7a7a\u71c3\u6599\u524d\u4f53\u544b\u5583\u52a0\u5408\u72694-\uff082-\u544b\u5583\u57fa\uff09-3-\u4e01\u70ef-2-\u916e\uff08FAc\uff09\u548c1,5-\u4e8c-2-\u544b\u5583\u57fa-1,4-\u620a\u4e8c\u70ef-3-\u916e\uff08F2<\/sub>Ac\uff09\u3002\u7136\u800c\uff0c\u4ecd\u7136\u9700\u8981\u5f00\u53d1\u6709\u6548\u7684\u78b1\u6027\u50ac\u5316\u5242\u5e76\u4e86\u89e3\u78b1\u6027\u4f4d\u70b9\u7684\u4f5c\u7528\u3002\u672c\u5de5\u4f5c\u91c7\u7528\u5171\u6c89\u6dc0\u6cd5\u6210\u529f\u5236\u5907\u4e86La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub>\u50ac\u5316\u5242\uff0c\u5e76\u7814\u7a76\u4e86\u5236\u5907\u6761\u4ef6\u5bf9\u5176\u7ed3\u6784\u548c\u50ac\u5316\u6027\u80fd\u7684\u5f71\u54cd\u3002\u5b9e\u9a8c\u8868\u660e\uff0c\u7ecf\u7145\u70e7\u540e\u5f62\u6210La2<\/sub>O2<\/sub>CO3<\/sub>\u548cLa2<\/sub>O3<\/sub>\uff0c\u800cLa2<\/sub>O2<\/sub>CO3<\/sub>\u6781\u5927\u7684\u63d0\u9ad8\u4e86\u50ac\u5316\u6d3b\u6027\u3002\u5728\u8f83\u9ad8\u7684\u5171\u6c89\u6dc0pH<\/em>\u503c\u4e0b\u53ef\u4ee5\u5f62\u6210\u68d2\u72b6\u7684La2<\/sub>O2<\/sub>CO3<\/sub>\uff0c\u5e76\u66b4\u9732\u51fa\u66f4\u591a\u7684La3+<\/sup>-O2-<\/sup>\u78b1\u6027\u4f4d\u70b9\uff0c\u5728\u7f9f\u919b\u7f29\u5408\u53cd\u5e94\u4e2d\u8868\u73b0\u51fa\u826f\u597d\u7684\u6027\u80fd\u3002\u4e4b\u540e\uff0c\u5728\u7ce0\u919b\u4e0e\u4e19\u916e\u7684\u7f9f\u919b\u7f29\u5408\u5b9e\u9a8c\u4e2d\u8bc4\u4ef7\u4e86La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub>\u7684\u50ac\u5316\u6027\u80fd\uff0c\u5e76\u4e0eAl2<\/sub>O3<\/sub>\u3001La2<\/sub>O3<\/sub>\u3001La2<\/sub>O3<\/sub>-Al2<\/sub>O3<\/sub>\u3001La(OH)3<\/sub>\/Al2<\/sub>O3<\/sub>\u548cLa2<\/sub>O2<\/sub>CO3<\/sub>\/Al2<\/sub>O3<\/sub>\u7684\u8fdb\u884c\u4e86\u50ac\u5316\u6027\u80fd\u7684\u6bd4\u8f83\u3002\u5728\u7ce0\u919b\/\u4e19\u916e\u6bd4\u4e3a1\/1\u548c90 o<\/sup>C\u4e0b\uff0c\u7ce0\u919b\u7684\u603b\u8f6c\u5316\u7387\u4e3a67.8%\uff0c\u540c\u65f6FAc\u4ea7\u7387\u4e3a25.8%\u3002\u6700\u540e\u7814\u7a76\u4e86La2<\/sub>O2<\/sub>CO3<\/sub>-Al2<\/sub>O3<\/sub>\u50ac\u5316\u5242\u7684\u5931\u6d3b\u673a\u7406\u3002\u8be6\u60c5\u53ef\u89c1\uff1a<\/p>\n

Lu-ping Li, Zhen Fang*<\/strong>, Xiao Kong*, Wen-Jie Cong, Molecular Catalysis, 515, 111893 (2021). https:\/\/doi.org\/10.1016\/j.mcat.2021.111893.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u822a\u7a7a\u71c3\u6599\u5408\u6210Lanthanide catalyst for synthesis of jet fuel int […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/4572"}],"collection":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/comments?post=4572"}],"version-history":[{"count":3,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/4572\/revisions"}],"predecessor-version":[{"id":4577,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/4572\/revisions\/4577"}],"wp:attachment":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/media?parent=4572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/categories?post=4572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/tags?post=4572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}