Absorption - Packed Column Absorbers
A complete teaching system
with comprehensive experiments, data analysis, tutor's and student manuals
if desired, and all instruments and controllers.
- Compares column flooding,
loading and pressure drop characteristics of three packings
- Compares absorption characteristics
of packed columns
- Allows humidification
and stripping to be studied
- Custom designed for the
technician/undergraduate teaching
- Complete visual monitoring
of the process
- Easily operated and used
- No further development
work necessary
- Suitable for project or
research work
Specification
A QVF absorption teaching
system module comprising three 80mm diameter borosilicate glass columns,
1500mm long, filled with 7 and 10mm glass raschig rings and 7mm ceramic
saddles respectively. Designed to study the dynamics of packed columns,
the absorption of dilute mixture, humidification and
stripping. Supplied with
a differential pressure manometer, air and gas flow meters, water recirculation
pump, interconnecting pipework all manufactured in borosilicate glass,
valves, controllers, instrumentation and supporting structure. Complete
with an installation and maintenance manual and tool kit.
Experimental Capabilities
- Influence of liquid and
gas rates on column pressure drop
- Influence of packing size
and type on column pressure drop
- Column flooding and loading
- Influence of packing size
and type on absorption efficiency
- Influence of liquid and
gas rates on absorption efficiency
- Height of transfer units
for absorption
- Humidification and stripping
The air/water system is used
for dynamic testing. SO2, is used for the absorption experiments.
Other chemical systems may also be investigated.
The experiments are also
designed to provide training in chemical process equipment operation.
Optional Manuals
The equipment can be supplied
with the following manuals:
Tutor's manual: The
basis of a lecture course on absorption and packed column dynamics theory
and practice. Also including operating instructions, experiments, typical
results and answers to student questions.
Student manuals provide
the basics of absorption and packed column dynamics theory and practice
with plant operating instructions.
Experiment booklets
provide step-by-step instructions for performing the experiments, data
to be recorded and questions to be answered.
Additional copies of the
student manuals and experiment booklets can be reordered.
Description
The packed columns are arranged
to operate individually. Solute gas and/or air enters at the base of
the selected column, their flowrates being determined by variable area
flowmeters. Water to the top of the column is similarly metered and
falls through the packing where it is contacted with the rising gas.
By means of a water filled
manometer and a multiport selection valve, the differential pressure
across the column is determined.
When column dynamics are
being studied, water is continuously circulated by means of the recirculation
pump and compressed air is blown through the column. (An optional compressor
is available for laboratories without a compressed air supply.)
For absorption studies, fresh
tap water is used which after contacting with a lean gas mixture, flows
to drain. A sample point on the water outlet side allows samples to
be taken for analysis and determination of absorption efficiency.
Fresh water and air is also
required for humidification studies and for stripping, the fresh water
is replaced by the product under test.
Plant operation is controlled
from a free-standing control panel fitted with a mimic diagram housing
flow controllers, temperature and pressure indicators and services controllers.
All major process items and
pipework are manufactured from QVF borosilicate glass with other contact
parts in PTFE, stainless steel and ceramic.
Options
Either steam or electric
heating.
Electrical System
The electrical system can
be designed to meet your local requirements.
Equipment Specification
- Packed columns (3): 80mm
dia x 1500mm long filled with 7 and 10mm dia glass raschig rings and
7mm ceramic saddles
- Recirculation Pump: 0.25kW
0-100 L/min
Installation and maintenance
manual provides detailed instructions on installing and maintaining
the plant.
Instrumentation
- Water: Control valve,
flowmeter
- Air: Control valve, flowmeter
- Solute gas: Control valve,
flowmeter
- Process: Manometer
Utilities Requirements
- Electricity: 1.0kW, 220/240V,
single phase/60Hz
- Compressed air: 100 L/min
- SO2: 5 L/min
- Water: 10 L/min
Space Requirements
(height x floor area)
3.7 x 2.5 x 1.0 meters
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