OP-II-3

OP-III-B-13Huaipei coal with SBR because the molecular size of SBR radical was small duringthe stabilization with radicals from Huaipei coal. Accordingly, the solvent effects, suchas hydrogen donation and hydrogen shuttling by the hydroaromatics derived fromSBR, was appeared on coprocessing Huaipei coal with SBR.z ResidueAsphalteneOilGasObs.NR + Wyoming coalCalc.NR + Huaipei coalObs.Calc.Obs.SBR + Wyoming coalCalc.SBR + Huaipei coalObs.Calc.0 10 20 30 40 50 60 70 80 90 100Yield (wt %, d. a. f. basis)Fig. 2. Product yields after coprocessing coal with tyre rubberConclusions On coprocessing coal with NR, the yields of polar constituentsincreased in comparison with the calculated yields due to the polymerization amongthe radicals from coal and NR. On the other hand, polymerization was inhibited oncoprocessing coal and SBR with the pressurized H 2 gas because hydrogen donationand hydrogen shuttling to coal radicals enhanced by the aromatics from SBR. Inparticular, the synergistic effect, such as the decrease of residue yield, appeared oncoprocessing Huaipei coal with SBR. Accordingly, it was considered that thesynergistic effects to upgrading on coprocessing coal with waste tyre were obtainedowing to enhancement of hydrogen donation and hydrogen shuttling by thepressurized H 2 gas and aromatics derived from SBR in tyre.References[1]. Farcasiu, M., Smith, C. M., Prep. Papers ACS, Divi. Fuel Chem., 1992, 37, 472-479.[2]. Sato, Y., Kamo, T., Yamamoto, Y., Miki, K. and Kurahashi, S., Coal Science and Technology 24(Proceedings 8th International Conference on Coal Science), 1995, p.1539-1542.[3]. Liu, Z., Zondlo, J.W., Dadyburjor, D.B., Energy Fuels, 1994, 8, 607-612.[4]. Mastral, A.M., Murillo, R., Perez-Surio, M.J., Callén, M., Energy Fuels, 1996, 10, 941-947.[5]. Mastral, A.M., Murillo, R., Callén, M.S., García, T., Fuel Process. Technol., 2001, 69, 127-140.AcknowledgementsThe authors express our gratitude to Bridgestone Corporation for their providing tyreparticles, natural rubber and styrene-butadiene rubber.206