Title: Method and apparatus for drying a moisture-containing particulate material

Abstract: This invention relates to a process and apparatus for drying moisture-containing particulate materials. The process comprises feeding the particulates to a drying vessel containing therein a hydrocarbon liquid maintained at a temperature sufficiently high to rapidly evaporate the moisture; stirring the articulate-liquid slurry in the vessel so as to maintain particle flow therein; feeding a hot hydrocarbon liquid to the vessel; heating the vessel wall above the liquid level to a temperature above the slurry temperature to prevent foaming; removing from the vessel an overhead vapor product; and condensing the vapor product to recover water and hydrocarbon liquid. An apparatus useful for carrying out the above-mentioned process is also claimed.

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Inventors: Weber, Carl L. (Pipersville, PA, US)

Application Number: 945026
Filing Date: 1978-09-22
Publication_date: 1980-07-01
Assignee: Hydrocarbon Research, Inc. (Lawrenceville, NJ)
Primary Class(es): 34/354 34/60, 34/386
Other Classes:
US Patent Ref:

3188196	Jun, 1965	Skelly	34/9.
3520067	Jul, 1970	Winegartner	34/9.
3953927	May, 1976	Hoffert	34/9.

Other Refs:
Primary Examiner: Camby, John J.
Assistant Examiner:
Attorney: Jacobs; Michael A.