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Chemcial Industry and Engineering 2021, Vol. 38 Issue (1) :43-52    DOI: 10.13353/j.issn.1004.9533.20200314
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Chemical Analysis of the Phenolic Tar Residue and Its Potential Conversion to CO2 Adsorbents by Thermal Treatment
Ma Yuan1,2, Du Jinze1,2, Zhou Jing1,2, Sui Hong1,2,3, He Lin1,2, Li Xingang1,2,3
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China;
3. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China

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Abstract Aiming at the utilization of solid residues after the vacuum distillation of phenol-based kettles, the composition analysis of phenol-based kettles residues was conducted firstly. And then we explored the resource utilization and harmless utilization of residues with the thermal conversion methods. Taking the mid-low temperature coal tar XJ and mid-low temperature coal tar YN phenol-based kettle residues as examples, the crude samples were vacuum distillated at 15 kPa, 270 ℃ and 15 kPa, 300 ℃, respectively. After the deep vacuum distillation, the light components and heavy residues were analyzed using LC-MS, XRD, XRF, element analyzer. Subsequently, the solid residue was treated by oxygen-free pyrolysis method and was modified by N-containing chemicals to prepare adsorbents. The morphology and composition of pyrolysis products were collected and analyzed. Results showed that the newly prepared adsorbents by phenol-based kettle residues performed well in adsorbing CO2 with the maximum CO2 adsorption capacity of 2.94 mmol/g. Based on the above preliminary research results, the possible ways of recycling and harmless utilization of phenol-based deep drawing kettle residues were initially proposed to provide a basic reference for engineering application.
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Ma Yuan
Du Jinze
Zhou Jing
Sui Hong
He Lin
Li Xingang
Keywords： phenolic tar residue；   resource utilization；   vacuum distillation；   thermal conversion；   analysis     
Received 2020-03-30;
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Ma Yuan, Du Jinze, Zhou Jing, Sui Hong, He Lin, Li Xingang.Chemical Analysis of the Phenolic Tar Residue and Its Potential Conversion to CO2 Adsorbents by Thermal Treatment[J]  Chemcial Industry and Engineering, 2021,V38(1): 43-52
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