Yang Xu, Hao Guo, Yuxiang Mao, Lei Qian, Weijuan Yang and Jun Cheng*,
{"title":"具有高脱氧和裂解能力的改性镍基金属有机框架 (Ni-BTC),用于在低催化剂用量下生产喷气燃料范围内的碳氢化合物混合物","authors":"Yang Xu, Hao Guo, Yuxiang Mao, Lei Qian, Weijuan Yang and Jun Cheng*, ","doi":"10.1021/acs.iecr.4c00696","DOIUrl":null,"url":null,"abstract":"<p >To enhance deoxygenation and cracking performance of microalgal biodiesel to produce a jet fuel-range hydrocarbon blend, an efficient Ni-carbon composite was prepared by pyrolyzing Ni-based metal–organic frameworks (Ni-1,3,5-benzenetricarboxylate, Ni-BTC) for catalytic conversion with a substantially reduced catalyst dosage. Coordinated Ni ions in the Ni-BTC precursor were converted into highly active Ni nanoparticles due to catalyst pyrolysis, while an increased specific surface area of the catalyst facilitated mass transfer in microalgal biodiesel conversion. X-ray absorption fine structure analysis confirmed the formation of Ni–Ni active sites, while density functional theory calculations revealed that the C═C bond was the initial site for the cracking reaction of long-chain fatty acids. The selectivity of jet-fuel-range products in methyl palmitate conversion over the Ni@C<sub>500</sub> (Ni-BTC pyrolyzed at 500 °C) catalyst increased to 71.46% with a substantially reduced catalyst dosage (the mass ratio of catalyst to reactant was 1:200). The Ni@C<sub>500</sub> catalyst exhibited excellent performance with high selectivity (71.6%) and conversion efficiency (97.46%) in deoxygenation and cracking of microalgal biodiesel for jet fuel-range hydrocarbon blend production.</p>","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modified Ni-Based Metal–Organic Frameworks (Ni-BTC) with High Deoxygenation and Cracking Ability for Production of a Jet Fuel-Range Hydrocarbon Blend at a Low Catalyst Dosage\",\"authors\":\"Yang Xu, Hao Guo, Yuxiang Mao, Lei Qian, Weijuan Yang and Jun Cheng*, \",\"doi\":\"10.1021/acs.iecr.4c00696\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >To enhance deoxygenation and cracking performance of microalgal biodiesel to produce a jet fuel-range hydrocarbon blend, an efficient Ni-carbon composite was prepared by pyrolyzing Ni-based metal–organic frameworks (Ni-1,3,5-benzenetricarboxylate, Ni-BTC) for catalytic conversion with a substantially reduced catalyst dosage. Coordinated Ni ions in the Ni-BTC precursor were converted into highly active Ni nanoparticles due to catalyst pyrolysis, while an increased specific surface area of the catalyst facilitated mass transfer in microalgal biodiesel conversion. X-ray absorption fine structure analysis confirmed the formation of Ni–Ni active sites, while density functional theory calculations revealed that the C═C bond was the initial site for the cracking reaction of long-chain fatty acids. The selectivity of jet-fuel-range products in methyl palmitate conversion over the Ni@C<sub>500</sub> (Ni-BTC pyrolyzed at 500 °C) catalyst increased to 71.46% with a substantially reduced catalyst dosage (the mass ratio of catalyst to reactant was 1:200). The Ni@C<sub>500</sub> catalyst exhibited excellent performance with high selectivity (71.6%) and conversion efficiency (97.46%) in deoxygenation and cracking of microalgal biodiesel for jet fuel-range hydrocarbon blend production.</p>\",\"PeriodicalId\":39,\"journal\":{\"name\":\"Industrial & Engineering Chemistry Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industrial & Engineering Chemistry Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.iecr.4c00696\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.iecr.4c00696","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Modified Ni-Based Metal–Organic Frameworks (Ni-BTC) with High Deoxygenation and Cracking Ability for Production of a Jet Fuel-Range Hydrocarbon Blend at a Low Catalyst Dosage
To enhance deoxygenation and cracking performance of microalgal biodiesel to produce a jet fuel-range hydrocarbon blend, an efficient Ni-carbon composite was prepared by pyrolyzing Ni-based metal–organic frameworks (Ni-1,3,5-benzenetricarboxylate, Ni-BTC) for catalytic conversion with a substantially reduced catalyst dosage. Coordinated Ni ions in the Ni-BTC precursor were converted into highly active Ni nanoparticles due to catalyst pyrolysis, while an increased specific surface area of the catalyst facilitated mass transfer in microalgal biodiesel conversion. X-ray absorption fine structure analysis confirmed the formation of Ni–Ni active sites, while density functional theory calculations revealed that the C═C bond was the initial site for the cracking reaction of long-chain fatty acids. The selectivity of jet-fuel-range products in methyl palmitate conversion over the Ni@C500 (Ni-BTC pyrolyzed at 500 °C) catalyst increased to 71.46% with a substantially reduced catalyst dosage (the mass ratio of catalyst to reactant was 1:200). The Ni@C500 catalyst exhibited excellent performance with high selectivity (71.6%) and conversion efficiency (97.46%) in deoxygenation and cracking of microalgal biodiesel for jet fuel-range hydrocarbon blend production.
期刊介绍:
ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.