Haiqing Sui, Chao Tian, Huijing Deng, Zi Ming, Zhichao Zhang, Wen Fu, Jian Li
{"title":"通过连续有机溶剂萃取和甘油辅助蒸馏分离木焦油中的化学基团","authors":"Haiqing Sui, Chao Tian, Huijing Deng, Zi Ming, Zhichao Zhang, Wen Fu, Jian Li","doi":"10.1016/j.seppur.2024.130019","DOIUrl":null,"url":null,"abstract":"Wood tar as an unwanted byproduct from biomass carbonization refers to a mass composed of thousands of organic substances. This study investigated the separation of the wood tar using both solvent extraction and glycerol-assisted distillation. The comprehensive impact of the wood tar separation on environment was assessed by life cycle assessment (LCA). The results showed that dichloromethane exhibited optimal extraction efficiency for ketones and mononuclear aromatic compounds with lower molecular weights within the range of 78 to 110 g/mol. Conversely, acetone effectively dissolved all polycyclic aromatic hydrocarbons, except for naphthalene and its derivatives. Notably, the solubility of furans in both solvents showed the weak selectivity, while guaiacols had a higher degree of selectivity (E = 1.19) towards dichloromethane in comparison to phenols (E = 0.7). Adding glycerol in assisted distillation effectively reduced coking and heterogeneity, thereby enhancing the stability of the bio-oil. It is estimated that for 1 MJ of the bio-oil, the solvent extraction resulted in lower greenhouse gas emissions (0.0623 kg CO<sub>2</sub> eq) compared to glycerol-assisted distillation (0.0716 kg CO<sub>2</sub> eq).","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Separation of chemical groups from wood tar via sequential organic solvent extraction and glycerol-assisted distillation\",\"authors\":\"Haiqing Sui, Chao Tian, Huijing Deng, Zi Ming, Zhichao Zhang, Wen Fu, Jian Li\",\"doi\":\"10.1016/j.seppur.2024.130019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Wood tar as an unwanted byproduct from biomass carbonization refers to a mass composed of thousands of organic substances. This study investigated the separation of the wood tar using both solvent extraction and glycerol-assisted distillation. The comprehensive impact of the wood tar separation on environment was assessed by life cycle assessment (LCA). The results showed that dichloromethane exhibited optimal extraction efficiency for ketones and mononuclear aromatic compounds with lower molecular weights within the range of 78 to 110 g/mol. Conversely, acetone effectively dissolved all polycyclic aromatic hydrocarbons, except for naphthalene and its derivatives. Notably, the solubility of furans in both solvents showed the weak selectivity, while guaiacols had a higher degree of selectivity (E = 1.19) towards dichloromethane in comparison to phenols (E = 0.7). Adding glycerol in assisted distillation effectively reduced coking and heterogeneity, thereby enhancing the stability of the bio-oil. It is estimated that for 1 MJ of the bio-oil, the solvent extraction resulted in lower greenhouse gas emissions (0.0623 kg CO<sub>2</sub> eq) compared to glycerol-assisted distillation (0.0716 kg CO<sub>2</sub> eq).\",\"PeriodicalId\":427,\"journal\":{\"name\":\"Separation and Purification Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-10-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Separation and Purification Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1016/j.seppur.2024.130019\",\"RegionNum\":1,\"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":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2024.130019","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Separation of chemical groups from wood tar via sequential organic solvent extraction and glycerol-assisted distillation
Wood tar as an unwanted byproduct from biomass carbonization refers to a mass composed of thousands of organic substances. This study investigated the separation of the wood tar using both solvent extraction and glycerol-assisted distillation. The comprehensive impact of the wood tar separation on environment was assessed by life cycle assessment (LCA). The results showed that dichloromethane exhibited optimal extraction efficiency for ketones and mononuclear aromatic compounds with lower molecular weights within the range of 78 to 110 g/mol. Conversely, acetone effectively dissolved all polycyclic aromatic hydrocarbons, except for naphthalene and its derivatives. Notably, the solubility of furans in both solvents showed the weak selectivity, while guaiacols had a higher degree of selectivity (E = 1.19) towards dichloromethane in comparison to phenols (E = 0.7). Adding glycerol in assisted distillation effectively reduced coking and heterogeneity, thereby enhancing the stability of the bio-oil. It is estimated that for 1 MJ of the bio-oil, the solvent extraction resulted in lower greenhouse gas emissions (0.0623 kg CO2 eq) compared to glycerol-assisted distillation (0.0716 kg CO2 eq).
期刊介绍：
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.
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