The significance of coal properties for acetylene formation in a hydrogen plasma

Bittner, D.; Wanzl, W.

doi:10.1016/0378-3820(90)90072-z

Cited by 18 publications

(16 citation statements)

References 2 publications

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“…48 The suggested optimum volatile matter range has been narrowed to 32− 39%. 43 (The high acetylene yield from a coal of 33% volatile matter was noted above.) Coals of >37% volatile matter should ideally contain <13% oxygen.…”

Section: Direct Production Via Arc Plasma Reactionsmentioning

confidence: 83%

“…27,33,41,42 It is proposed that acetylene formation is a two-step process, involving first the rapid thermal decomposition of the coal into volatiles and solid (char, coke, or soot) and then reaction of the volatiles in the plasma, accounting for the actual formation of acetylene. 33,43 Rank also impacts the formation of byproduct coke. Tests with Chinese coals showed that anthracite had low tendency for formation of coke and adhesion of coke particles to the reactor walls, while bituminous coals had significant coking and adhesion.…”

Section: Direct Production Via Arc Plasma Reactionsmentioning

confidence: 99%

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Production of Acetylene and Acetylene-based Chemicals from Coal

2013

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Section: Direct Production Via Arc Plasma Reactionsmentioning

confidence: 83%

Section: Direct Production Via Arc Plasma Reactionsmentioning

confidence: 99%

Production of Acetylene and Acetylene-based Chemicals from Coal

2013

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“…The plasma applications for coal pyrolysis, acetylene production, non-nuclear waste pyrolysis can be recognized in [62,[68][69][70][71].…”

Section: Dbd Pulsed Mw Pulsed Corona Electron Beammentioning

confidence: 99%

Chemical Kinetic Modeling in Coal Gasification Processes: an Overview

et al. 2012

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<p>Coal is the fuel most able to cover world deficiencies in oil and natural gas. This motivates the development of new and more effective technologies for coal conversion into other fuels. Such technologies are focused on coal gasification with production of syngas or gaseous hydrocarbon fuels, as well as on direct coal liquefaction with production of liquid fuels. The benefits of plasma application in these technologies is based on the high selectivity of the plasma chemical processes, the high efficiency of conversion of different types of coal including those of low quality, relative simplicity of the process control, and significant reduction in the production of ashes, sulphur, and nitrogen oxides. In the coal gasifier, two-phase turbulent flow is coupled with heating and evaporation of coal particles, devolatilization of volatile material, the char combustion (heterogeneous/porous oxidation) or gasification, the gas phase reaction/oxidation (homogeneous oxidation) of gaseous products from coal particles. The present work reviews literature data concerning reaction kinetic modelling in coal gasification. Current state of related kinetic models for heterogeneous/homogeneous oxidation of coal particles, included plasma assisted, is reviewed.</p>

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“…It is a complex process, consisting of a series of chemical reactions and physical changes and generating gas (coal gas), liquid (tar) and solid products(char), etc. [1][2][3][4][5][6][7] . Coal pyrolysis leads to a high yield of gaseous products.…”

Section: Introductionmentioning

confidence: 99%