Keywords

Coal, Pyrolysis, Plasma Jet, CPD Model

Abstract

Reaction of coal in a plasma jet is complex and extremely rapid, and acetylene and carbon monoxide are the main products in the pyrolysis gas. Coal pyrolysis is assumed as the first step reaction when coal is injected into hot plasma jet with initial average temperature of 3700 K. Chemical percolation devolatilization (CPD) is employed first to simulate this procedure in mechanism. The calculation results indicate coal pyrolysis rate in plasma jet is very fast and the retention time of coal staying in reactor is only several milliseconds. Comparing the calculation with experiment result, it was concluded that the CPD agree with the experiment well when the coal feed rate is larger than about 2.0 g s-1. As the coal feed rate was increased, the average temperature of coal particle during staying in reactor was reduced and the residual time became long, but it was not found that the residual time influenced the coal conversion evidently.

Original Publication Citation

Tian, Y., K. Xie, S. Zhu, and T. H. Fletcher, "Simulation of Coal Pyrolysis in Plasma Jet by CPD Model," Energy and Fuels, 15, 1354-1358 (2001).

Document Type

Peer-Reviewed Article

Publication Date

2001

Publisher

American Chemical Society

Language

English

College

Ira A. Fulton College of Engineering

Department

Chemical Engineering

University Standing at Time of Publication

Full Professor

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