Monoethanolamine (MEA) stands as a cornerstone chemical in the critical processes of gas sweetening and purification, particularly within the oil and gas industry. Its primary function is the efficient removal of acidic gases, notably hydrogen sulfide (H2S) and carbon dioxide (CO2), from various gas streams. This vital process, often termed 'gas sweetening,' ensures that natural gas and refinery gases meet stringent purity standards for safe transportation, processing, and use. The effectiveness of MEA stems from its chemical properties as an alkanolamine. In aqueous solutions, MEA readily reacts with acidic gases through an acid-base reaction. The amine group in MEA protonates, forming a carbamate or hydrosulfide salt with CO2 and H2S, respectively. These reactions effectively 'scrub' the acidic components from the gas stream, leaving behind a purified, 'sweetened' gas. The absorbed acid gases are then later released from the MEA solution in a regeneration process, allowing the MEA to be recycled and reused, making the process highly efficient and sustainable. The application of MEA in carbon capture technology is also significant, where it is employed to remove CO2 from flue gases emitted by power plants and industrial facilities, playing a crucial role in mitigating greenhouse gas emissions. The high reactivity and absorption capacity of MEA make it a preferred solvent for these applications. Ensuring a consistent supply of high-purity MEA is essential for the optimal performance of gas treatment facilities. As a reliable supplier in China, we provide MEA that meets the rigorous demands of gas sweetening processes. The understanding of MEA's role in removing acid gases highlights its indispensable nature in maintaining the quality and environmental compliance of gas streams across the energy sector, underscoring its importance in achieving effective gas purification.