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Title: Filtration process and equipment studies for coal liquefaction processes. Quarterly report, June--August 1977

Technical Report ·
DOI:https://doi.org/10.2172/5329544· OSTI ID:5329544

Filtration characteristics of Solvent Refined Coal were studied on the Rotary Pressure Precoat Test Leaf. Both feeds exhibited filtration rates higher than 500 lbs/sq ft/hr under the same conditions, and one run with Wilsonville Feed at 100 psid and 600/sup 0/F resulted in filtration rates in excess of 750 lbs/sq ft/hr. Major differences between results with Wilsonville and Fort Lewis Feeds were as follows: (1) Filtration rates for the Wilsonville Filter Feed at both 1 mil/cycle and 2 mils/cycle blade advances were about the same. This indicated that 1 mil/cycle was sufficient to remove the solid particles which penetrated and tended to blind the CELITE AF5 precoat. (2) Filter aid usage when filtering Wilsonville material was nearly constant for each blade advance over a range of drum speeds; whereas, the Fort Lewis Feed has exhibited a much greater increase of filter aid consumption with increased drum speeds. As expected, the filtration rates increased when increasing the pressure from 70 to 100 psid, and decreased when decreasing the temperature from 600 to 500/sup 0/F with the particular Wilsonville sample, made from Emery Feed coal.

Research Organization:
Johns-Manville Sales Corp., Denver, CO (USA)
DOE Contract Number:
EX-76-C-01-2007
OSTI ID:
5329544
Report Number(s):
FE-2007-38
Country of Publication:
United States
Language:
English