Development of plasma pyrolysis/gasification systems for energy efficient and environmentally sound waste disposal

Tang, Lan; Huang, Hai; Hao, Haiqing; Zhao, K.

doi:10.1016/j.elstat.2013.06.007

Cited by 129 publications

(66 citation statements)

References 43 publications

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“…Figure 3 shows a nontransferred thermal DC plasma torch schematic diagram. The advantage of DC thermal plasma is the ease of operation, expected thermal efficiency of 90% and a possible disadvantage of small jet volume [31]. The thermal plasma used in this research work releases thermal energy as arc discharge [24].…”

Section: Classification Of Plasma T P (K) Applicationsmentioning

confidence: 99%

“…The second step involves side group saturation leaving free radicals in the middle carbons of the polymer. The final step is chain termination by adding an R group as seen below ( Figure 4) [32]: The advantage of DC thermal plasma is the ease of operation, expected thermal efficiency of 90% and a possible disadvantage of small jet volume [31]. The thermal plasma used in this research work releases thermal energy as arc discharge [24].…”

Section: Ldpe Degradation Mechanismmentioning

confidence: 99%

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DC Thermal Plasma Design and Utilization for the Low Density Polyethylene to Diesel Oil Pyrolysis Reaction

Aboughaly

Stoute

2017

Energies

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Abstract:The exponential increase of plastic production produces 100 million tonnes of waste plastics annually which could be converted into hydrocarbon fuels in a thermal cracking process called pyrolysis. In this research work, a direct current (DC) thermal plasma circuit is designed and used for conversion of low density polyethylene (LDPE) into diesel oil in a laboratory scale pyrolysis reactor. The experimental setup uses a 270 W DC thermal plasma at operating temperatures in the range of 625 • C to 860 • C for a low density polyethylene (LDPE) pyrolysis reaction at pressure = −0.95, temperature = 550 • C with τ = 30 min at a constant heating rate of 7.8 • C/min. The experimental setup consists of a vacuum pump, closed system vessel, direct current (DC) plasma circuit, and a k-type thermocouple placed a few millimeters from the reactant sample. The hydrocarbon products are condensed to diesel oil and analyzed using flame ionization detector (FID) gas chromatography. The analysis shows 87.5% diesel oil, 1,4-dichlorobenzene (Surr), benzene, ethylbenzene and traces of toluene and xylene. The direct current (DC) thermal plasma achieves 56.9 wt. % of diesel range oil (DRO), 37.8 wt. % gaseous products and minimal tar production. The direct current (DC) thermal plasma shows reliability, better temperature control, and high thermal performance as well as the ability to work for long operation periods.

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Section: Classification Of Plasma T P (K) Applicationsmentioning

confidence: 99%

Section: Ldpe Degradation Mechanismmentioning

confidence: 99%

DC Thermal Plasma Design and Utilization for the Low Density Polyethylene to Diesel Oil Pyrolysis Reaction

Aboughaly

Stoute

2017

Energies

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“…Waste treatment using plasmas has gained special attention in the last decade, which is reported in numerous studies and review papers (see, e.g., [63,91,[95][96][97][98][99]). The use of plasmas for waste incineration is attractive when a valuable co-product like syngas, hydrogen, or electricity can be generated.…”

Section: Plasma For Waste Treatmentmentioning

confidence: 99%

Overview of Electric Field Applications in Energy and Process Engineering

Zigan

2018

Energies

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Heat and mass transfer as well as chemical reactions in technical processes can be enhanced by using electric fields. This paper provides an overview of current fundamental and applied research as well as potential technical applications of electric fields in energy and process engineering. This includes electrosprays, technical combustors as well as electrochemical reforming and plasma gasification of waste or biomass. Other emerging fields are plasma technologies for treatment of water, surfaces and gases including flue gases. In particle or aerosol-laden flows, plasmas are used to promote particle nucleation and surface growth for controlled nanomaterial synthesis. Furthermore, non-invasive diagnostics based on electromagnetic fields and electric fluid properties are relevant techniques for online control and optimization of technical processes. Finally, an overview of laser-based techniques is provided for studying electro-hydrodynamic effects, temperature, and species concentrations in plasma and electric-field enhanced processes.

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“…The techniques and management system of the MSW had changed dramatically, shifting from oversimplified procedures, such as collecting unsorted wastes first and then disposing them in landfills, to integrated and sustainable methods that incorporate waste reduction practices, classification, material recycling techniques, biological and thermal processes for energy recovery, and landfill disposal (Liamsanguan and Gheewala, 2008;Lombardi et al, 2015;Grimberg et al, 2015;. Numerous studies have been carried out by researchers from different countries all over the world in various aspects of MSW, such as food waste (Yasin et al, 2013), technology innovation (Malkow, 2004;Tang et al, 2013), and life cycle assessment (LCA) . In addition, several scientometrics studies have been made to analyze the trends of solid waste (Yang et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

Global trends of municipal solid waste research from 1997 to 2014 using bibliometric analysis

Chen

Jiang

Yang

et al. 2015

Journal of the Air & Waste Management Association

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Development of plasma pyrolysis/gasification systems for energy efficient and environmentally sound waste disposal

Cited by 129 publications

References 43 publications

DC Thermal Plasma Design and Utilization for the Low Density Polyethylene to Diesel Oil Pyrolysis Reaction

DC Thermal Plasma Design and Utilization for the Low Density Polyethylene to Diesel Oil Pyrolysis Reaction

Overview of Electric Field Applications in Energy and Process Engineering

Global trends of municipal solid waste research from 1997 to 2014 using bibliometric analysis

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