Filtration process and equipment studies for coal liquefaction processes. Monthly report for January 1978
Rotary Pressure Precoat Filter Test Leaf activities involved two series of filtration runs with Tacoma Filter Feed, and represent the first filter rate data obtained on this equipment with the precoat applied ''in situ''. The first series of runs exhibited rates of 424 and 374 pounds/hour/square foot, which were about 40 percent and 10 percent higher respectively than the most comparable previous runs. The second series of runs exhibited abnormally low rates decreasing from 254 to 87 pounds/hour/square foot. This was attributed to a high proportion of the precoat dropping off and allowing progressive plugging. As both of these series were halted due to precoat failure, a future goal will be to improve the technique of precoating. It has been concluded that the cam motion type of retractable sleeve and use of Viton O-Ring seals represent satisfactory mechanical operation at 600/sup 0/F and 200 psig.
- Research Organization:
- Johns-Manville Sales Corp., Denver, Colo. (USA)
- OSTI ID:
- 5181635
- Report Number(s):
- FE-2007-43
- Country of Publication:
- United States
- Language:
- English
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