Gas Absorption and Desorption Column Plant with 7in Touch LCD and DAQ Software (SMT-CP-103)
This apparatus is designed to demonstrate the principles of gas absorption and desorption, specifically for removing components like CO₂ from a gas stream using a solvent such as water. It allows students to investigate the complete cycle of absorbing gases in a counter-flow column and subsequently regenerating the solvent through pressure reduction and heating, illustrating key mass transfer operations in industrial gas treatment.
The system features two primary columns: an absorption column where CO₂ is absorbed from an air mixture by water in counter-current flow, and a desorption column where the CO₂-rich solvent is regenerated under negative pressure and elevated temperature induced by a water jet pump and heater. The columns are constructed from borosilicate glass for visibility and corrosion resistance, and include U-tube manometers to measure pressure losses. A compressor delivers the gas mixture, while pumps circulate the solvent, with all parameters—flow rates, temperatures, and pressures—monitored and controlled via a 7-inch touch LCD and data acquisition software. Sampling ports allow for analysis of gas and liquid phases to evaluate process efficiency.
Its primary applications are in chemical and environmental engineering education, focusing on separation processes and pollution control technologies. The key benefits include hands-on experimentation with variables like solvent flow, temperature, and pressure, enabling students to optimize absorption efficiency and solvent regeneration while understanding energy and mass balances. The integrated software and transparent design provide a safe, visual, and data-driven approach to learning industrial-scale gas scrubbing processes.