Hydrocarbon purification apparatus

Details Hydrocarbon purification apparatus Hydrocarbon purification apparatus

1978-07-11

1980-10-28

Bashore, S. Leon

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Responsive to liquid level

422109, 422111, 422113, 422115, G05D 900, G05D 1600, G05D 2300

Patent

active

042306663

ABSTRACT:
In the removal of HF from hydrocarbon streams by chemical reaction with solid potassium hydroxide, runaway temperatures and subsequent explosions can occur when excess HF is present in the hydrocarbon charged to the KOH treater. According to the invention, a control system and method are provided which regulate the flow of hydrocarbon charged to the KOH treater responsive to temperature changes within the system indicative of excessive amounts of HF in the hydrocarbon stream, thereby preventing the treater temperature from exceeding a preselected maximum allowable value. Several embodiments are provided whereby temperature changes in the KOH treater or a differential temperature across an HF stripper are used as temperature sensing points to control flow of hydrocarbon to the KOH treater.

REFERENCES:
patent: 3002818 (1961-10-01), Berger
patent: 3130187 (1964-04-01), Tolin et al.
patent: 3172880 (1965-03-01), Lupfer
patent: 3206390 (1965-09-01), Van Pool
patent: 3401092 (1968-09-01), Matta
patent: 3403198 (1968-09-01), Van Pool
patent: 3451785 (1969-06-01), Rohlfing et al.
patent: 3547806 (1970-12-01), Matyear

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