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Atomization characteristics of pyrolysis oil derived from waste tires

Waste Disposal and Sustainable Energy 2024年第1期6卷 39-52页

作者： Hong Feng Zhitong Yin Qin Hong Yiming Hu Lintao Liu Jun Wang Qunxing Huang Yonggang Zhou ZJMI Environmental Energy Co. LtdHangzhou310003China Tongxiang Taiaisi Environmental Protection Energy Co. Ltd.Jiaxing314500China State Key Laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou310027China Key Laboratory of Clean Energy and Carbon Neutrality of Zhejiang Province Jiaxing Research InstituteZhejiang UniversityJiaxing314031China

The atomization characteristics play a key role in the highly efficient combustion of pyrolysis oil derived from waste *** this study,the fuel properties of tire pyrolysis oil(TPO)were initially studied,and then a high-speed camera and a phase Doppler particle analyzer were employed to characterize the atomization feature of *** influence of pressure and nozzle orifice diameter on atomization characteristics such as spray angle,droplet velocity,and droplet size distribution was *** results showed that TPO had a high calorific value of about 43.6 MJ/kg and a low viscosity of 3.84×10^(–6)m^(2)/s at 40℃,which made it have the potential to be used as an alternative *** pressure expanded the spray angle and extended the spray in both the axial and radial *** increasing pressure,spray angle and droplet velocity raised,and the increase in crushing effect of air reduced the Sauter mean diameter(SMD)of the *** obtain proper atomization quality for combustion,the pressure is expected to be higher than 1.25 *** increasing nozzle orifice diameter,droplet velocity increased,and the SMD of the droplets increased as well due to weakened crushing effect of the ***,the pressure must be increased to maintain the atomization quality when using a nozzle with a larger *** to the lower viscosity,the velocity and particle size distribution of TPO droplets after atomization were smaller than those of diesel *** extremely small carbon black contained in TPO also contributed to the breaking of droplets and played a certain role in the size reduction of the oil droplets,but it may cause the risk of nozzle *** summary,TPO showed great atomization characteristics for alternative fuel applications.

关键词： pyrolysis oil Atomization characteristics Spray angle Droplet velocity Droplet size distribution

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Alternative wood treatment with blends of linseed oil,alcohols and pyrolysis oil

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Journal of Bioresources and Bioproducts 2022年第4期7卷 278-287页

作者： Jost Ruwoldt Kai Toven RISE PFI AS Høgskoleringen 6BTrondheim 7491Norway

Linseed oil is a common wood treatment agent,which is often blended with naphthenic oil during its *** this study,we developed new types of linseed oil blends,where the naphthenic oil was substituted with alcohols and pyrolysis *** miscibility tests revealed,linseed oil can be blended indefinitely with primary alcohols containing three carbon atoms or *** addition,kinetic stability of three-component-mixtures was found,which comprised linseed oil,alcohol and pyrolysis *** developed blends were further tested for their viscosity and rate of solvent *** last,trial impregnations of wood were done to test this new treatment *** uptake of treatment oil and the effect on water repellency varied,and substituting white spirit with propanol and pyrolysis oil showed *** latter were miscible with 50%(wt)linseed oil at concentrations of 37.5%1-or 2-propanol and 12.5%pyrolysis *** with the reference case,treatment with this agent markedly decreased the water-uptake of the *** study hence attributes great potential to the newly developed linseed oil blends,which may introduce additional product characteristics and generate value to byproducts via pyrolysis.

关键词： Wood treatment Wood impregnation Royal process Linseed oil treatment pyrolysis oil

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A Comparative Study on the Fixed Bed pyrolysis of Different Biomass Solid Wastes

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Journal of Energy and Power Engineering 2013年第7期7卷 1250-1256页

作者： Mohammad Nurul Islam Mustafizur Rahman Sheikh Mohammad Najmul Hoque Department of Mechanical Engineering Institute Technology Brunei Darussalam BE 1410 Brunei Department of Mechanical Engineering Rajshahi University of Engineering & Technology Rajshahi 6204 Bangladesh

Biomass in the form of nutshell, hay of catkin, wheat straw and linseed residue in particles have been pyrolyzed in laboratory scale fixed bed reactor which yielded liquid oil, solid char and gas. The variation of oil yield for different biomass feedstock with reactor bed temperature and feed size is presented in this paper. A maximum liquid yield of 55 wt% of dry feedstock is obtained at an optimum temperature of 500℃ for a feed size of 300-600μm with a running time of 55 min for nutshell as the feedstock while the minimum liquid oil yield is found to be 30 wt% of feedstock at an optimum temperature of 400℃ for a feed size of 2.36 mm with a running time of 65 min for linseed residue as the feedstock. A comparison on the product yields is highlighted in this study. The pyrolysis liquid products are characterized and compared for some of the fuel properties like HHV （higher heating value）, viscosity, density and specific gravity.

关键词： pyrolysis biomass renewable energy pyrolysis oil characterization.

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