کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6476390 | 1425379 | 2017 | 9 صفحه PDF | دانلود رایگان |
- Pulverized coal is pyrolyzed in a MW-scale rotating plasma reactor.
- Upstream injection facilitates particle transportation and conversion.
- The pyrolysis gas compositions are sensitive to the quench temperature.
This paper presents a clean and one-step way to produce acetylene by plasma pyrolysis of coal. A self-designed MW-scale rotating plasma reactor is used to investigate the pyrolysis of pulverized coal, characterized by the upstream injection of coal particles into the rotating plasma. The rotating plasma arc has a stirring effect and the upstream injection facilitates particle transportation, allowing for a good mixing of coal with plasma and high heat-transfer efficiency. The effects of magnetic coil current, coal flow rate and synergetic parameters on the pyrolysis were studied, and the optimum operating conditions of pyrolysis process were screened by taking consideration of acetylene mole fraction, yield, specific energy requirement and coal conversion rate. The minimum specific energy requirement of 9.50Â kWh/kg-C2H2 was achieved with a magnetic coil current of 875Â A.
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Journal: Fuel Processing Technology - Volume 167, 1 December 2017, Pages 721-729