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Effect of nitrogen content of solvent on coal liquefaction

Journal Article · · Ind. Eng. Chem. Fundam.; (United States)
DOI:https://doi.org/10.1021/i100014a011· OSTI ID:6563578

SRC-II recycle solvents contain substantial amounts of heterocyclic compounds such as quinoline: hydrogenated derivatives of such compounds can be good H-donors. Hydrogenation of quinoline is faster than that of the corresponding homocyclic compounds such as naphthalene. Hence, such compounds should aid in maintaining the H-donor capability of recycle solvents at high levels. In a series of coal liquefaction runs to test this premise, there was no effect of tetrahydroquinoline addition to hydrogenated phenanthrene and SRC-II solvent on the product distribution from coal liquefaction, but there was a very pronounced effect with anthracene oil as solvent. Adduction of tetrahydroquinoline led to a net loss of solvent and a very high yield of asphaltenes.

OSTI ID:
6563578
Journal Information:
Ind. Eng. Chem. Fundam.; (United States), Journal Name: Ind. Eng. Chem. Fundam.; (United States) Vol. 23:4; ISSN IECFA
Country of Publication:
United States
Language:
English