Boots – shoes – and leggings
Patent
1979-05-02
1980-11-25
Ruggiero, Joseph F.
Boots, shoes, and leggings
208DIG1, 364106, 364116, G05B 1304, G05D 706, G06F 1546
Patent
active
042362180
ABSTRACT:
The heat supplied to a cracking furnace is controlled so as to maintain a desired conversion rate for the material being cracked in the cracking furnace by comparing a prediction of the conversion rate for the material being cracked in the cracking furnace to a desired conversion rate for the material being cracked in the cracking furnace to thereby determine the heat required to maintain a desired conversion rate for the material being cracked in the cracking furnace. A measured conversion rate for the material being cracked in the cracking furnace is utilized to correct the predicted conversion rate as required. A signal representative of the heat required to maintain a desired conversion rate for the materal being cracking in the cracking furnace is utilized to manipulate the flow of fuel to the cracking furnace to thereby control the heat supplied to the cracking furnace.
REFERENCES:
patent: 3175968 (1965-03-01), Berger
patent: 3271472 (1966-09-01), Ogle et al.
patent: 3473008 (1969-10-01), Bay et al.
patent: 3594559 (1971-07-01), Pemberton
patent: 3619360 (1971-11-01), Persik, Jr.
patent: 3758762 (1973-09-01), Littman et al.
patent: 3824388 (1974-07-01), Cugini
patent: 3828171 (1974-08-01), Griffin
Baxley, Jr.-"Computer Control of Severity in Ethylene Cracking Furnaces"-Instrumentation Technology, pp. 39-42, Nov. 1971.
Killebrew, Jr. Wilbur N.
Stewart Charles M.
Phillips Petroleum Company
Ruggiero Joseph F.
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