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Title: Additive effect of waste tire on the hydrogenolysis reaction of coal liquefaction residue

Abstract

A numerous amount of waste tire is landfilled or dumped all over the world, which causes environmental problems, such as destruction of natural places and the risk of fires. On the other hand, the coal liquefaction residue (CLR) is produced in 30% yield through the process supporting unit (PSU) of the NEDOL coal liquefaction process. Therefore, the investigation on an effective method for utilization of waste tire and CLR is required. In this study, the simultaneous hydrogenolysis of CLR and pulverized waste tire was carried out by using tetralin. The yields in the simultaneous hydrogenolysis were compared with algebraic sum of the yields of the individual hydrogenolyses of waste tire alone and coal alone. In the simultaneous hydrogenolysis, the synergistic effects to upgrading, such as an increase in the yield of the oil constituent and a decrease in the yield of the asphaltene constituent, occurred because of the stabilization of asphaltenic radicals from CLR with aliphatic radicals from tire. The decrease in asphaltene yield in the simultaneous hydrogenolysis was pronounced with the increase in the tire:CLR ratio because the solvent effects of liquefied tire, such as stabilization of radicals, hydrogen shuttling, and heat transfer, were enhanced. Accordingly, it is estimatedmore » that the simultaneous hydrogenolysis of CLR and waste tire is an effective method for processing both materials. 15 refs., 3 figs., 2 tabs.« less

Authors:
; ;  [1]
  1. Nihon University, Tokyo (Japan). Department of Materials and Applied Chemistry, College of Science and Technology
Publication Date:
OSTI Identifier:
20838269
Resource Type:
Journal Article
Resource Relation:
Journal Name: Energy and Fuels; Journal Volume: 20; Journal Issue: 6; Other Information: sugano@chem.cst.nihon-u.ac.jp
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 09 BIOMASS FUELS; TIRES; SOLID WASTES; COAL LIQUEFACTION; RESIDUES; COPROCESSING; HYDROGENATION; SYNERGISM; YIELDS; ASPHALTENES; OIL YIELDS

Citation Formats

Motoyuki Sugano, Daigorou Onda, and Kiyoshi Mashimo. Additive effect of waste tire on the hydrogenolysis reaction of coal liquefaction residue. United States: N. p., 2006. Web. doi:10.1021/ef060193x.
Motoyuki Sugano, Daigorou Onda, & Kiyoshi Mashimo. Additive effect of waste tire on the hydrogenolysis reaction of coal liquefaction residue. United States. doi:10.1021/ef060193x.
Motoyuki Sugano, Daigorou Onda, and Kiyoshi Mashimo. Fri . "Additive effect of waste tire on the hydrogenolysis reaction of coal liquefaction residue". United States. doi:10.1021/ef060193x.
@article{osti_20838269,
title = {Additive effect of waste tire on the hydrogenolysis reaction of coal liquefaction residue},
author = {Motoyuki Sugano and Daigorou Onda and Kiyoshi Mashimo},
abstractNote = {A numerous amount of waste tire is landfilled or dumped all over the world, which causes environmental problems, such as destruction of natural places and the risk of fires. On the other hand, the coal liquefaction residue (CLR) is produced in 30% yield through the process supporting unit (PSU) of the NEDOL coal liquefaction process. Therefore, the investigation on an effective method for utilization of waste tire and CLR is required. In this study, the simultaneous hydrogenolysis of CLR and pulverized waste tire was carried out by using tetralin. The yields in the simultaneous hydrogenolysis were compared with algebraic sum of the yields of the individual hydrogenolyses of waste tire alone and coal alone. In the simultaneous hydrogenolysis, the synergistic effects to upgrading, such as an increase in the yield of the oil constituent and a decrease in the yield of the asphaltene constituent, occurred because of the stabilization of asphaltenic radicals from CLR with aliphatic radicals from tire. The decrease in asphaltene yield in the simultaneous hydrogenolysis was pronounced with the increase in the tire:CLR ratio because the solvent effects of liquefied tire, such as stabilization of radicals, hydrogen shuttling, and heat transfer, were enhanced. Accordingly, it is estimated that the simultaneous hydrogenolysis of CLR and waste tire is an effective method for processing both materials. 15 refs., 3 figs., 2 tabs.},
doi = {10.1021/ef060193x},
journal = {Energy and Fuels},
number = 6,
volume = 20,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}