Minyi He, Jun Zhao, Duanda Wang, Qinghua Liang, Tianyu Wang, Sui Zhao, Wangjing Ma
{"title":"微波辅助催化热解生物质与从废锂离子电池中提取的生物炭材料:微波吸收和热解特性","authors":"Minyi He, Jun Zhao, Duanda Wang, Qinghua Liang, Tianyu Wang, Sui Zhao, Wangjing Ma","doi":"10.1016/j.jece.2024.112099","DOIUrl":null,"url":null,"abstract":"<p>Biochar materials are economical and favorable microwave absorbers for microwave-assisted catalytic pyrolysis (MACP) of waste biomass into high-value biofuels (e.g., H<sub>2</sub>-rich syngas and aromatics in bio-oil). However, the catalytic activity of biochar alone is not satisfying. Transition metals from spent lithium-ion batteries (LIBs) like Fe, Ni, Co, and Mn could improve the activity of biochar materials in MACP. Herein, a series of microwave-absorbing catalysts based on biochar materials derived from spent lithium-ion batteries were prepared. Microwave absorption of these biochar materials was studied using vector network analysis, and MACP characteristics of rice straw with these biochar materials were investigated. Results showed that the graphitization of biochar increased after oxalic acid treatment and microwave activation, resulting in increased <span><math><msup is=\"true\"><mrow is=\"true\"><mi is=\"true\">ε</mi></mrow><mrow is=\"true\"><mo is=\"true\">′</mo></mrow></msup></math></span>, <span><math><msup is=\"true\"><mrow is=\"true\"><mi is=\"true\">ε</mi></mrow><mrow is=\"true\"><mi is=\"true\" mathvariant=\"normal\">′′</mi></mrow></msup></math></span>, and tanδ<sub>ε</sub>. These facilitate converting microwave energy into heat and achieve higher heating rates (maximum 720<!-- --> <!-- -->°C/min, microwave power: 800<!-- --> <!-- -->W) to promote biomass pyrolysis. Furthermore, these biochar materials realized higher yields of H<sub>2</sub>-rich syngas and lower yields of liquid products than the original biochar and commercial SiC in MACP of rice straw at 360<!-- --> <!-- -->W (< 350°C), depicting enhanced catalytic activity and product selectivity. Particularly, MACP with biochar material derived from spent LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>O<sub>2</sub> (i.e., sNCMHC-C) obtained the highest selectivity of H<sub>2</sub> (50.22 vol. %) in gaseous products, monocyclic aromatic hydrocarbons (MAHs, 18.86 area. %) and benzene, 1-propynyl- (17.41 area. %) in liquid products. This study suggests that MACP with biochar materials derived from spent LIBs has a high potential to promote high-value utilization of waste biomass.</p>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":7.4000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microwave-assisted catalytic pyrolysis of biomass with biochar materials derived from spent lithium-ion batteries: Microwave absorption and pyrolysis characteristics\",\"authors\":\"Minyi He, Jun Zhao, Duanda Wang, Qinghua Liang, Tianyu Wang, Sui Zhao, Wangjing Ma\",\"doi\":\"10.1016/j.jece.2024.112099\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Biochar materials are economical and favorable microwave absorbers for microwave-assisted catalytic pyrolysis (MACP) of waste biomass into high-value biofuels (e.g., H<sub>2</sub>-rich syngas and aromatics in bio-oil). However, the catalytic activity of biochar alone is not satisfying. Transition metals from spent lithium-ion batteries (LIBs) like Fe, Ni, Co, and Mn could improve the activity of biochar materials in MACP. Herein, a series of microwave-absorbing catalysts based on biochar materials derived from spent lithium-ion batteries were prepared. Microwave absorption of these biochar materials was studied using vector network analysis, and MACP characteristics of rice straw with these biochar materials were investigated. Results showed that the graphitization of biochar increased after oxalic acid treatment and microwave activation, resulting in increased <span><math><msup is=\\\"true\\\"><mrow is=\\\"true\\\"><mi is=\\\"true\\\">ε</mi></mrow><mrow is=\\\"true\\\"><mo is=\\\"true\\\">′</mo></mrow></msup></math></span>, <span><math><msup is=\\\"true\\\"><mrow is=\\\"true\\\"><mi is=\\\"true\\\">ε</mi></mrow><mrow is=\\\"true\\\"><mi is=\\\"true\\\" mathvariant=\\\"normal\\\">′′</mi></mrow></msup></math></span>, and tanδ<sub>ε</sub>. These facilitate converting microwave energy into heat and achieve higher heating rates (maximum 720<!-- --> <!-- -->°C/min, microwave power: 800<!-- --> <!-- -->W) to promote biomass pyrolysis. Furthermore, these biochar materials realized higher yields of H<sub>2</sub>-rich syngas and lower yields of liquid products than the original biochar and commercial SiC in MACP of rice straw at 360<!-- --> <!-- -->W (< 350°C), depicting enhanced catalytic activity and product selectivity. Particularly, MACP with biochar material derived from spent LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>O<sub>2</sub> (i.e., sNCMHC-C) obtained the highest selectivity of H<sub>2</sub> (50.22 vol. %) in gaseous products, monocyclic aromatic hydrocarbons (MAHs, 18.86 area. %) and benzene, 1-propynyl- (17.41 area. %) in liquid products. This study suggests that MACP with biochar materials derived from spent LIBs has a high potential to promote high-value utilization of waste biomass.</p>\",\"PeriodicalId\":15759,\"journal\":{\"name\":\"Journal of Environmental Chemical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2024-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Environmental Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jece.2024.112099\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Environmental Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.jece.2024.112099","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Microwave-assisted catalytic pyrolysis of biomass with biochar materials derived from spent lithium-ion batteries: Microwave absorption and pyrolysis characteristics
Biochar materials are economical and favorable microwave absorbers for microwave-assisted catalytic pyrolysis (MACP) of waste biomass into high-value biofuels (e.g., H2-rich syngas and aromatics in bio-oil). However, the catalytic activity of biochar alone is not satisfying. Transition metals from spent lithium-ion batteries (LIBs) like Fe, Ni, Co, and Mn could improve the activity of biochar materials in MACP. Herein, a series of microwave-absorbing catalysts based on biochar materials derived from spent lithium-ion batteries were prepared. Microwave absorption of these biochar materials was studied using vector network analysis, and MACP characteristics of rice straw with these biochar materials were investigated. Results showed that the graphitization of biochar increased after oxalic acid treatment and microwave activation, resulting in increased , , and tanδε. These facilitate converting microwave energy into heat and achieve higher heating rates (maximum 720 °C/min, microwave power: 800 W) to promote biomass pyrolysis. Furthermore, these biochar materials realized higher yields of H2-rich syngas and lower yields of liquid products than the original biochar and commercial SiC in MACP of rice straw at 360 W (< 350°C), depicting enhanced catalytic activity and product selectivity. Particularly, MACP with biochar material derived from spent LiNixCoyMn1-x-yO2 (i.e., sNCMHC-C) obtained the highest selectivity of H2 (50.22 vol. %) in gaseous products, monocyclic aromatic hydrocarbons (MAHs, 18.86 area. %) and benzene, 1-propynyl- (17.41 area. %) in liquid products. This study suggests that MACP with biochar materials derived from spent LIBs has a high potential to promote high-value utilization of waste biomass.
期刊介绍:
The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.