Characterization of pyrolysis tars from Canadian coals |
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| Affiliation: | 1. Department of Chemical & Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand;2. Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand;3. Department of Civil & Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand;1. Department of Materials and Environmental Chemistry, Stockholm University, SE-10691 Stockholm, Sweden;2. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm, Sweden;3. Department of Materials Science, Tampere University of Technology, PO Box 589, FIN-33101 Tampere, Finland;4. Department of Signal Processing, Tampere University of Technology, PO Box 589, FIN-33101 Tampere, Finland;5. Division of Materials Science, Luleå University of Technology, SE-97187 Luleå, Sweden;1. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266555, China;2. School of Oil and Gas Engineering, Shengli College, Dongying 257061, China;1. School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430205, Hubei, China;2. Nottingham Transportation Engineering Centre, School of Civil Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom;3. School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China;4. Faculty of Engineering, China University of Geosciences, Wuhan 430074, Hubei, China;5. Research Institute of Highway Ministry of Transport, Beijing 100088, China;6. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, Hubei, China |
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| Abstract: | Tars produced by rapid pyrolysis of several Canadian coals have been characterized. Raw tars were separated into solvent fractions which were analysed by a combination of PONA separation by high-performance liquid chromatography, high-resolution capillary gas chromatography and chromatography-mass spectrometry. The alkane-alkene pairs and poly nuclear aromatics found in hexane and benzene fractions are reported for four coals pyrolysed under a range of conditions. The predominance of C8 to C14–18 alkane-alkene pairs together with alkyl-substituted benzenes and naphthalenes in the hexane-soluble oils, and three-to five-membered ring aromatics in the benzene-soluble asphaltenes from bituminous coal tars was established. Effects of pyrolysis temperature on aromatic homologues and key nitrogen, sulphur and oxygen heterocyclic homologues are shown. |
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