GB842335A - Distillation apparatus - Google Patents
Distillation apparatusInfo
- Publication number
- GB842335A GB842335A GB1192357A GB1192357A GB842335A GB 842335 A GB842335 A GB 842335A GB 1192357 A GB1192357 A GB 1192357A GB 1192357 A GB1192357 A GB 1192357A GB 842335 A GB842335 A GB 842335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- heater
- reflux
- rate
- oscillator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
842,335. Automatic control systems. ESSO RESEARCH & ENGINEERING CO. Jan. 17, 1958 [April 11, 1957], No. 11923/57. Class 38(4). A still is maintained at its optimum temperature just below that which will precede flooding of the fractionating column by measuring the rate of reflux and controlling the temperature accordingly. As shown, a syphon near the base of the column alternately fills and empties and so alters the capacitance between foil sheets 6, 7. The capacity change causes an oscillator to start or stop oscillating, the change in oscillator current operating a relay to produce square pulses. The positive pulses obtained by differentiating these pulses trigger a monostable circuit the output of which thus consists of pulses of equal amplitude and duration and a frequency equal to the frequency of operation of the siphon. These pulses after smoothing produce a voltage representative of the rate of reflux and this controls the heat supplied to an immersion heater and a jacket heater by comparison with a pre-set voltage modified by a feed-back voltage from one of the heater supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1192357A GB842335A (en) | 1957-04-11 | 1957-04-11 | Distillation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1192357A GB842335A (en) | 1957-04-11 | 1957-04-11 | Distillation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB842335A true GB842335A (en) | 1960-07-27 |
Family
ID=9995120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1192357A Expired GB842335A (en) | 1957-04-11 | 1957-04-11 | Distillation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB842335A (en) |
-
1957
- 1957-04-11 GB GB1192357A patent/GB842335A/en not_active Expired
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