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Free radicals in coals and coal conversion. 4. Investigation of the free radicals in selected macerals upon liquefaction

โœ Scribed by Leon Petrakis; David W. Grandy

Book ID
107755634
Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
582 KB
Volume
60
Category
Article
ISSN
0016-2361

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๐Ÿ“œ SIMILAR VOLUMES

Free radicals in coals and coal conversi
Free radicals in coals and coal conversion. 3. Investigation of the free radicals of selected macerals upon pyrolysis
โœ Leon Petrakis; David W. Grandy ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 546 KB

The nature and concentration of free radicals in natural and pyrolysed samples of several high-purity resinites, vitrinites and fusinites have been determined by electron spin resonance (e.s.r.) spectrometry. Careful measurements of theg-values, linewidths and integrated intensities have been made.

Free radicals in coal and coal conversio
Free radicals in coal and coal conversions. 5. Methodology for the in-situ investigation of free radicals in coal depolymerization under SRC-II preheater/reactor conditions
โœ Leon Petrakis; D.W. Grandy; R.G. Ruberto ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 477 KB

In a continuing series of publications, a systematic investigation of the free radicals during coal depolymerization under SRC-II preheater/reactor conditions has been made. A uniquely designed electron spin resonance (e.s.r.) cavity allows the monitoring of free radicals and how they are affected b

Free radicals in coal and coal conversio
Free radicals in coal and coal conversions. 8. Experimental determination of conversion in hydroliquefaction
โœ Leon Petrakis; David W. Grandy; G.L. Jones ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 741 KB

The results of conversion determinations on the products from Powhatan No.5 coal liquefied in an autoclave and in a high-pressure, high-temperature e.s.r. cavity are reported. Oil, asphaltene and preasphaltene yields, and overall conversion have been determined for Powhatan No.5 coal samples liquefi