Page 9 - PIGNAT catalogue 2020 GB_092020

MINI UNITS

DVI/100 CONTINUOUS DISTILLATION

➢ Study of the continuous distillation
Thermosiphon boiler
Bubble trays column
External reflux
Study of column hydrodynamics
Determination of overflow conditions

Study of main parameters
Mass Balance
Thermal Balance
Yield and hold-up

General specifications • Distillate receiver, 5 L.

• 3 magnetic pumps, sampling • Bottoms receiver, 5 L.
valves :
Feeding pump, with by- Instrumentation
pass valve. • 4 temperature probes Pt100Ω.
Distillate pump. • Differential pressure.
Column bottom pump. • Flowmeter.

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• 2 Flowmeters.
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• Level sensor with vibrating
Supervision - Data acquisition Bubble trays • Glass preheating, two coils. • 2 Flowmeters.
• Glass boiler, heater, low level
blades.
detector.

• Glass column ND50, ten bubble
cap plates.

• Glass condenser, glass coil.

100 - 240 V
Water
• Cooler, in glass, glass coil.
A water methanol mixture is fed in the tank. The pump feed the column. Dim: 155 x 70 x 110 cm - 80 kg
The mixture is preheated and flow rate is regulated with the valve and the DVI/300
flowmeter. The 3 way valves allows the user to select the filling of the
boiler or the feeding of the column.

The boiler works as a thermosiphon, the ways valves allows the user to
select the feeding or the draining of the boiler.

The temperature measurement (boiler, head of the column, inlet and
outlet of the condenser, etc) and the flow rate allows the user to control
the distillation and to calculate the thermal balances.

Material balances are determined with sampling points and process flow-
meters.

Control of operating parameters (feeding flow rate, reflux ratio, etc.)
allows the user to study the distillation process.

DVI/300
The automatized version of the DVI/300 has a differential pressure trans-
mitter. The DVI/100 flowmeters has replaced by 5 flowrate transmitters
and solenoids valves (feeding, reflux, distillate, residues, cooling water),
which allows to control of process from electrical cabinet that content a
automate and a supervision touch screen. Other pilots

DVI/3000 Continuous distillation unit.
DVI/6000 Multifunction distillation.
Dim : 170 x 70 x 115 cm - 175 kg

Chemical engineering & unit operations
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