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Non-catalytic pyrolysis of scrap tires using a newly developed two-stage pyrolyzer for the production of a pyrolysis oil with a low sulfur content
被引:75
作者:
Choi, Gyung-Goo
[1
]
Oh, Seung-Jin
[1
]
Kim, Joo-Sik
[1
]
机构:
[1] Univ Seoul, Dept Energy & Environm Syst Engn, 90 Jeonnong Dong, Seoul 130743, South Korea
来源:
关键词:
Scrap tire;
One-stage pyrolysis;
Two-stage pyrolysis;
Pyrolysis oil;
Sulfur;
Limonene;
FLUIDIZED-BED REACTOR;
WASTE TYRE PYROLYSIS;
FUEL PRODUCTION;
THERMAL-DEGRADATION;
CO-PYROLYSIS;
DIESEL FUEL;
LIQUID;
DESULFURIZATION;
OPTIMIZATION;
CATALYSTS;
D O I:
10.1016/j.apenergy.2016.02.119
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
The aim of this work was to reduce the sulfur content of pyrolysis oil derived from the scrap tire pyrolysis. In this respect, a series of pyrolysis experiments was conducted in both a fluidized bed reactor (one-stage pyrolysis) and a newly developed two-stage pyrolyzer consisting of an auger reactor and a fluidized bed reactor in series (two-stage pyrolysis). The one-stage pyrolysis was carried out at similar to 500 and similar to 600 degrees C with different fluidizing gases (N-2 and product gas). In the experiments, the pyrolysis oil obtained at similar to 500 degrees C had a lower sulfur content than that produced at similar to 600 degrees C. N-2 was better at producing a low-sulfur pyrolysis oil than product gas. The sulfur contents of the oils obtained from the one-stage pyrolysis ranged from 0.75 to 0.92 wt.%. The two-stage pyrolysis was conducted using product gas as the fluidizing medium at different auger reactor temperatures (similar to 230-450 degrees C) and at a constant fluidized bed reactor temperature (similar to 510 degrees C). A pyrolysis oil containing only 0.55 wt.% of sulfur could be produced at the temperatures of the auger reactor of similar to 330 degrees C and fluidized bed reactor of similar to 510 degrees C. Moreover, the two-stage pyrolysis could produce an oil with a low nitrogen content (0.28 wt.%). A pyrolysis oil obtained from the auger reactor contained DL-limonene up to 50 wt.%. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:140 / 147
页数:8
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