Double Column Gas Absorption Unit

The Double Column Gas Absorption Unit, allows a complete study of gas absorption and desorption processes in packed columns, accurately reproducing the operating conditions used in the chemical and environmental industries.

ATENG 10841 — Double Column Gas Absorption Unit

Anodized aluminum frame and panels made of painted steel.

The unit includes wheels to facilitate its mobility.

Main metallic elements made of stainless steel.

Diagram in the front panel with distribution of the elements similar to the real one.

• Absorption filling column:

• Consists of a cylindrical glass tube 1400 mm high, divided into two sections, with an internal diameter

• of 75 mm.

• The column is filled with 10 mm glass Raschig rings.
  Includes glass ends for gas and liquid inlet and outlet and sampling.

• Filling column for desorption:

• It consists of a cylindrical glass tube 750 mm high and 75 mm in internal diameter.

• The column is filled with 10 mm glass Raschig rings.
  It includes glass ends for gas and liquid inlet and outlet.
  Independent control of the absorption and desorption columns.

• Liquid circuit (water):
  ATENG 10841 detail
  40 l capacity PVC tank.

• Centrifugal pump (maximum flow rate: 540 l/h).
  The liquid flow rate reaching the column at any given moment is measured with a flow meter.
  Glass diffuser shower.
  PVC pipe for liquid effluent with a flow control valve and a sampling port.
  Temperature sensor that measures the temperature of the water entering the column.

• Gas circuit (air and CO ):

• Compressor (blower) that provides a maximum flow rate of 2.4 Nm³/h and a maximum pressure of 0.6 bar.
  The gas (CO or ammonia) is supplied by a cylinder, bottle type. (Not included in the equipment supply)

The flow rates of both gases are measured with two flow meters.

Two flow control valves.

Temperature sensor that measures the temperature of the mixture of the two gas streams at the column inlet.

• Instrumentation for monitoring the process:
• Flow sensors:
  One flow meter for air. Range up to 2.4 Nm³/h.
  One flow meter for solvent. Range up to 600 l/h.
  One flow meter for CO. Range up to 320 l/h.
• Pressure sensors:
  Two differential pressure₂ gauges to measure the pressure drop across the two sections of the absorption column.
• Pressure gauge to measure the pressure during the desorption operation. Range up to 2.5 bar.
• Pressure gauge in the gas circuit line. Range up to 2.5 bar.
  Two pressure gauges to measure the discharge pressure in the solvent circuit pumps.
  Nine temperature sensors to control the temperature exchange in the gas and liquid circuits.
  It has transparent elements to facilitate visualization of the process.
  Cables and accessories, for normal operation.