Convective heater
- Macungie, PA
A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the prevention of coke formation.
- Research Organization:
- International Coal Refining Co
- DOE Contract Number:
- AC05-78OR03054
- Assignee:
- International Coal Refining Company (Allentown, PA)
- Patent Number(s):
- US 4422411
- OSTI ID:
- 864814
- Country of Publication:
- United States
- Language:
- English
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