The effect of feed composition on the hydrotreatment of coal-derived naphtha

The conversion of heterocompounds (nitrogen and sulfur) was followed during the conversion of five feedstocks: (a) naphtha from Black Thunder coal, (b) naphtha from Illinois No. 6 coal, (c) the distillate (80%) of the Black Thunder naphtha, (d) the residual (20%) portion of the Black Thunder naphtha...

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Published inFuel (Guildford) Vol. 77; no. 11; pp. 1155 - 1162
Main Authors Liaw, Shuh-Jeng, Keogh, Robert K., Davis, Burtron H.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.09.1998
Elsevier
Subjects
Applied sciences
coal
composition
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
naphtha
Solid fuel processing (coal, coke, brown coal, peat, wood, etc.)
naphtha
composition
coal
Coal liquids
Aniline
Hydrotreating
Sulfur Organic compounds
Subbituminous coal
Coal liquefaction
Nitrogen Organic compounds
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Summary:The conversion of heterocompounds (nitrogen and sulfur) was followed during the conversion of five feedstocks: (a) naphtha from Black Thunder coal, (b) naphtha from Illinois No. 6 coal, (c) the distillate (80%) of the Black Thunder naphtha, (d) the residual (20%) portion of the Black Thunder naphtha and (e) a blend of the residual portion of the Black Thunder and the Illinois No. 6 naphtha. The presence of the heteroatoms contained in the higher molecular weight fraction retards both HDS and HDN. The lower boiling nitrogen compound classes are represented as large, or even larger, fraction of the nitrogen heterocompounds in the hydrotreated product than was present in the feed. This suggests that lower boiling anilines and pyridines are formed as intermediates during the HDN of higher boiling bicyclic nitrogen heterocompounds.
ISSN:0016-2361
1873-7153
DOI:10.1016/S0016-2361(98)00013-1