Pursuant to our dispatches regarding the Fort Lewis, Washington, solvent-refined, direct liquefaction coal facility, we submit this dispatch, on the same subject, from India.
The excerpt:
"Solvent refined coal: studies on the behaviour of an iron catalyst
Author(s)
DWIVEDI S. R. ; DASGUPTA P. K. ; CHATTERJEE P. K. ; BOSE A. N. ; MUKHERJEE S. N. ; CHATTERJEE S. S. ; BRAHMACHARI B. B. ;
Author(s) Affiliation(s)
Cent. fuel res. inst., Dhanbad Bihar 828108, INDE
Abstract
In this paper an attempt is made to study the effect of solvent extraction on coals from Assam, South Karanpura and Singrauli Coalfields of India. Experiments were carried out in autoclaves under hydrogen pressure in the presence or haematite catalyst. Anthracene oil, having boiling range or 270-360°C, was used as solvent, whereas sulphur was used as catalyst promoter. It was observed that the yield and quality or solvent refined coal (SRC) was improved substantially by the effect or the catalyst. The yield or SRC from Sirka seam coal or South Karanpura Coalfield was found to be 94%, while its caking index was 51. Hydrogen requirement was of the order or 1.54% wt/wt or DAF coal. Recovery of recycle solvent was round to be about 90% wt/wt of solvent used in the process... ."
Note the mention, as we have previously documented, of, what could be inherent, or native, sulfur as a fortuitous catalyst promoter.