Boots – shoes – and leggings
Patent
1978-05-18
1980-02-05
Ruggiero, Joseph F.
Boots, shoes, and leggings
23230A, 236 15E, 422109, 431 12, 364116, G06F 1546, F23N 100
Patent
active
041875427
ABSTRACT:
A method and apparatus is provided for controlling the operation of a reforming furnace used to decompose at least a portion of a feed stream. A byproduct fuel from subsequent process steps, which is a result of decomposition of the feed in the reforming furnace, is used as one fuel source to fire the reforming furnace. A supplemental fuel such as natural gas is used as a supplemental fuel source to fire the furnace. The control system provides a prediction of the heat required to decompose the feed in the furnace. The amount of heat which can be supplied by the byproduct fuel stream is then determined. This amount of heat is subtracted from the total predicted heat required and sufficient supplemental fuel is supplied to make up the difference between the predicted required heat and the heat which can be supplied by the byproduct fuel stream.
The control system also monitors the temperature of the effluent flowing from the reforming furnace. A comparison of the measured temperature with the required temperature provides a basis for correcting any errors in the predicted heat requirement. In this manner, use of the byproduct fuel stream is maximized while still maintaining the effluent from the reforming furnace at a desired temperature.
REFERENCES:
patent: 3722811 (1973-03-01), Osburn
patent: 3824388 (1974-07-01), Cugini
patent: 3993447 (1976-11-01), Buss et al.
patent: 4028194 (1977-06-01), Boyd
Ball Donald H.
Voelkers James D.
Phillips Petroleum Company
Ruggiero Joseph F.
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