COMBUSTION TEMPERATURE AND EMISSION CHARACTERISTICS OF FLUE GAS POLLUTANTS OF WASTE TIRES PYROLYSIS OIL RICH IN AROMATICS

YIN Zhitong; LV Hongbing; ZHANG Dongming; XU Jiao; HUANG Qunxing; ZHONG Yiliu; HUANG Pingan; PAN Yuhan

doi:10.13205/j.hjgc.202210014

Volume 40 Issue 10

Oct. 2022

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YIN Zhitong, LV Hongbing, ZHANG Dongming, XU Jiao, HUANG Qunxing, ZHONG Yiliu, HUANG Pingan, PAN Yuhan. COMBUSTION TEMPERATURE AND EMISSION CHARACTERISTICS OF FLUE GAS POLLUTANTS OF WASTE TIRES PYROLYSIS OIL RICH IN AROMATICS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 105-111. doi: 10.13205/j.hjgc.202210014

Citation:

YIN Zhitong, LV Hongbing, ZHANG Dongming, XU Jiao, HUANG Qunxing, ZHONG Yiliu, HUANG Pingan, PAN Yuhan. COMBUSTION TEMPERATURE AND EMISSION CHARACTERISTICS OF FLUE GAS POLLUTANTS OF WASTE TIRES PYROLYSIS OIL RICH IN AROMATICS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 105-111. doi: 10.13205/j.hjgc.202210014

Citation:

YIN Zhitong, LV Hongbing, ZHANG Dongming, XU Jiao, HUANG Qunxing, ZHONG Yiliu, HUANG Pingan, PAN Yuhan. COMBUSTION TEMPERATURE AND EMISSION CHARACTERISTICS OF FLUE GAS POLLUTANTS OF WASTE TIRES PYROLYSIS OIL RICH IN AROMATICS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 105-111. doi: 10.13205/j.hjgc.202210014

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COMBUSTION TEMPERATURE AND EMISSION CHARACTERISTICS OF FLUE GAS POLLUTANTS OF WASTE TIRES PYROLYSIS OIL RICH IN AROMATICS

doi: 10.13205/j.hjgc.202210014

1. State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310013, China;
2. Zhejiang Zheneng Xingyuan Energy Saving Technology Co., Ltd, Hangzhou 311121, China

Received Date: 2021-11-16

Abstract

Abstract

Clean combustion is the main way for the efficient energy utilization of pyrolysis oil of organic solid wastes. The content of aromatic hydrocarbons accounted for about 30% of pyrolysis oil from all-steel waste tires. The thermal value and viscosity of the pyrolysis oil were similar to that of diesel, but the flash point was much lower, only 20℃. In this study, combustion experiments were carried out in a self-designed furnace, and the characteristics of the combustion temperature and flue gas emission of pyrolysis oil were studied. It was found that the combustion temperature reached the highest when the excess air ratio was 1.3. When the excess air ratio increased to 1.4, CO content in the flue gas dropped to 0. NO_x content increased with the increase of excess air ratio. When the excess air ratio exceeded 1.3, SO₂ content decreased substantially. The increase of injection oil pressure could increase the combustion temperature, making the combustion more adequate, reducing CO content in the flue gas, and promoting the generation of thermal NO_x. When the pressure rose from 1.5 MPa to 1.75 MPa, the combustion temperature, the CO content and the NO_x content varied the most. The increase of the nozzle orifice diameter could increase the atomization cone angle, expand the oil fog to contact with the air at a larger angle, and CO content dropped accordingly. Meanwhile, the increase of atomization cone angle could reduce the spray penetration distance, which shortened the flame length and the residence time of flue gas in high-temperature area, and reduced NO_x content.
- pyrolysis aromatic-enriched oil,
- excess air ratio,
- oil pressure,
- nozzle,
- combustion temperature,
- flue gas pollutant

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References(31)

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