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A new low-energy electrolytic path to ethylene dichloride

By Mary Page Bailey |

New process technology from Chemetry (Moss Landing, Calif.; www.chemetrycorp.com) aims to revitalize the chlor-alkali product chain by manufacturing ethylene dichloride (EDC) and caustic using much less power than conventional processes. Through an exclusive licensing and engineering agreement, Technip (Paris, France; www.technip.com) is helping to commercialize Chemetry’s eShuttle technology. The company has operated a continuous pilot plant since 2014, and is now scouting operating partner sites to construct a full-size demonstration plant. Combining a specialized three-compartment electrochemical cell and an aqueous catalysis step, eShuttle uses the same raw materials as typical chlor-alkali processes while eliminating the chlorine gas intermediate. In addition to saving power, removing chlorine makes the process inherently safer and allows for longer membrane life and simpler startup and shutdown, as no chlorine purge or disposal is required. Furthermore, since no chlorine gas is present in the system, eShuttle’s electrochemical cell is much thinner than those used in traditional chlor-alkali processes, which can provide for increased production rates within the same footprint, explains Chemetry CEO Ryan Gilliam. This makes…
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