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New method of feeding coal - Continuous extrusion of fully plastic coalContinuous feeding of coal in a compressing screw extruder is described as a method of introducing coal into pressurized systems. The method utilizes the property of many bituminous coals of softening at temperatures from 350 to 400 C. Coal is then fed much in the manner of common thermoplastics, using screw extruders. Preliminary results show that coals can be extruded at rates of about 3.3 kg/MJ, similar to those for plastics.
Document ID
19780069165
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ryason, P. R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
England, C.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1978
Publication Information
Publication: Fuel
Volume: 57
Subject Category
Engineering (General)
Accession Number
78A53074
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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