Treatment of pitch in argon/hydrogen plasmas

Dlugogorski, Bogdan Z.; Berk, Dimitrios; Munz, R. J.

doi:10.1021/ie00003a025

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…Some reactions can take place which would not appear in conventional pyrolysis. Laboratory studies of plasma pyrolysis of coal ( − ), wood ( , ) ,and plastics () have been reported. However, plasma pyrolysis of waste rubber has not yet been studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Gaseous and Solid Product from Thermal Plasma Pyrolysis of Waste Rubber

Huang

Tang

2003

Environ. Sci. Technol.

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Pyrolysis of waste rubber in thermal plasma is studied for the purpose of producing gaseous fuel and recovering carbon black filler. The plasma reactor has a dc arc nitrogen plasma generator with a maximum electric power input of 62.5 kVA and a reaction chamber of 50 mm inner diameter and 1000 mm height. The results of a series of experiments have shown that the main components of the gaseous product are H2, CO, C2H2, CH4, and C2H4; the heat value of the gas is about 5-9 MJ/Nm3. The solid product contains more than 80 wt % elemental carbon, has a surface area of about 65 m2/g, and is referred to as pyrolytic carbon black (CBp). X-ray photoelectron spectroscopy (XPS) analysis has revealed that the CBp has mainly graphitic carbon structure similar to those of commercial carbon black. The CBp may be used as semireinforcing carbon black in nontire rubber applications, or, after upgrading, as carbon black filler for tire. Thus thermal plasma pyrolysis is potentially a useful way of treating waste rubber for resource recovery.

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Section: Introductionmentioning

confidence: 99%

Characterization of Gaseous and Solid Product from Thermal Plasma Pyrolysis of Waste Rubber

Huang

Tang

2003

Environ. Sci. Technol.

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“…Waste decomposition using thermal plasmas has been reported for various kinds of wastes, such as halogenated hydrocarbon [10][11][12][13][14][15][16][17][18][19][20][21][22][23], polychlorinated biphenyl (PCB) [24,25], hydrocarbon [26][27][28], polymer [29][30][31], organic waste [28,[32][33][34][35][36][37], used tires [38][39][40], and medical waste [41,42]. Waste materials can be efficiently degraded by thermal plasmas under reducing or oxidizing conditions.…”

Section: Introductionmentioning

confidence: 99%

Water Plasmas for Environmental Application

Watanabe¹

2010

Industrial Plasma Technology

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Pyrolysis of canmet coprocessing residue in argon/hydrogen plasma

1993

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The continuous pyrolysis of CANMET coprocessing residue in argon/hydrogen plasma was studied for the temperature range 2700 to 3670 K using an induction plasma torch. Hydrogen was injected into the argon plasma tailflame at molar concentrations ranging from 0 to 23 %. The residue was continuously fed in liquid form to a laboratory‐scale reactor specially built for the study. The residue flow rate ranged from 6 to 9 g/min. A maximum of 10% of the residue pyrolysed with up to 90 % conversion to gaseous hydrocarbons. The rate of residue pyrolysis and the rate of formation of the gaseous products were found to be strongly dependent on the rate of heat transfer at the residue surface. The only gaseous products detected were acetylene, ethylene and methane. Some soot was produced, but no liquid hydrocarbons were detected.

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Treatment of pitch in argon/hydrogen plasmas

Cited by 5 publications

References 12 publications

Characterization of Gaseous and Solid Product from Thermal Plasma Pyrolysis of Waste Rubber

Characterization of Gaseous and Solid Product from Thermal Plasma Pyrolysis of Waste Rubber

Water Plasmas for Environmental Application

Pyrolysis of canmet coprocessing residue in argon/hydrogen plasma

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