Energetic,bio-oil,biochar,and ash performances of co-pyrolysis-gasification of textile dyeing sludge and Chinese medicine residues in response to K_(2)CO_(3),atmosphere type,blend ratio,and temperature  

作　　者：Gang Zhang Zhiyun Chen Tao Chen Shaojun Jiang Fatih Evrendilek Shengzheng Huang Xiaojie Tang Ziyi Ding Yao He Wuming Xie Jingyong Liu 

机构地区：[1]Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education Institutes,Dongguan University of Technology,Dongguan 523808,China [2]School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China [3]School of Environment,The Environmental Research Institute,MOE Key Laboratory of Theoretical Chemistry of Environment,South China Normal University,Guangzhou 510006,China [4]Department of Environmental Engineering,Bolu Abant Izzet Baysal University,Bolu 14052,Turkey

出　　处：《Journal of Environmental Sciences》2024年第2期133-150,共18页环境科学学报（英文版）

基　　金：National Natural Science Foundation of China (Nos.51978175,42177196,and 22006015);the Scientific and Technological Planning Project of Guangzhou,China (No.202103000004);the Guangdong Province Science and Technology Planning Project,China (No.2022A0505050076);the Dongguan Science and Technology of Social Development Program (No.20211800904662);the Dongguan Sci-tech Commissioner Program (No.20221800500282)。

摘　　要：Hazardous waste stream needs to be managed so as not to exceed stock-and rate-limited properties of its recipient ecosystems.The co-pyrolysis of Chinese medicine residue(CMR)and textile dyeing sludge(TDS)and its bio-oil,biochar,and ash quality and quantity were characterized as a function of the immersion of K_(2)CO_(3),atmosphere type,blend ratio,and temperature.Compared to the mono-pyrolysis of TDS,its co-pyrolysis performance with CMR(the comprehensive performance index(CPI))significantly improved by 33.9%in the N_(2)atmosphere and 33.2%in the CO_(2)atmosphere.The impregnation catalyzed the co-pyrolysis at 370℃,reduced its activation energy by 77.3 kJ/mol in the N_(2)atmosphere and 134.6 kJ/mol in the CO_(2)atmosphere,and enriched the degree of coke gasification by 44.25%in the CO_(2)atmosphere.The impregnation increased the decomposition rate of the co-pyrolysis by weakening the bond energy of fatty side chains and bridge bonds,its catalytic and secondary products,and its bio-oil yield by 66.19%.Its bio-oils mainly contained olefins,aromatic structural substances,and alcohols.The immersion of K_(2)CO_(3)improved the aromaticity of the copyrolytic biochars and reduced the contact between K and Si which made it convenient for Mg to react with SiO_(2)to form magnesium-silicate.The co-pyrolytic biochar surfaces mainly included-OH,-CH_(2),C=C,and Si-O-Si.The main phases in the co-pyrolytic ash included Ca_(5)(PO_(4))_(3)(OH),Al_(2)O_(3),and magnesium-silicate.

关 键 词：Chemical impregnation Catalytic pyrolysis Chinese medicine residue Textile dyeing sludge CO-PYROLYSIS 

分 类 号：X791[环境科学与工程—环境工程] X787