Abstract: Utilizing the “one pot method” with molecular sieve and Na₂CO₃ as the principal components, along with the addition of a binder and other substances, a layer-type of reformate oil liquid-phase dechlorinating agent was fabricated. The dechlorinating agent exhibited a chlorine capacity of 16.37% and a strength reaching 87 N/cm. Moreover, no sludging phenomenon was observed even after 24 hours of water immersion, thereby fulfilling the requirements for industrial application.Long-term industrial sideline comparison tests were conducted, and the results demonstrated that the dechlorination effect achieved by the self-made dechlorinating agent surpassed that of the imported agent, indicating its promising potential for industrial application. Through X-ray diffraction (XRD), N₂ adsorption-desorption, scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR) analyses of the dechlorinating agent both before and after the reaction, it was found that the lamellar structure and the abundant active sites of Na₂CO₃ within its internal structure were favorable for the processes of adsorption and dechlorination.Furthermore, an adsorption kinetic study on the adsorption process of the dechlorinating agent was carried out. The findings revealed that the adsorption process conformed to the pseudo-second-order kinetic model, signifying that the adsorption process was predominantly a chemisorption-based adsorption process.

Key words: liquid-phase dechlorinator, reformate oil, molecular sieve, adsorption kinetics