In the industrial production of H2 from natural gas the CO2 produced along with the H2 is removed by
The correct answer is A. Washing under pressure.
In the industrial production of hydrogen (H₂) from natural gas, carbon dioxide (CO₂) is produced as a byproduct. To remove CO₂ from the H₂ stream, a process called pressure swing adsorption (PSA) or chemical scrubbing is used.
Washing under pressure involves passing the H₂-CO₂ mixture through a solution that selectively absorbs CO₂, such as an aqueous solution of monoethanolamine (MEA) or potassium carbonate (K₂CO₃). This process is effective for removing CO₂ from the H₂ stream.
There is an explanation video available below.
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