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Chementator: A demonstration for an integrated MTO and olefin-cracking process

By Chemical Engineering |

Total Petrochemicals (Brussels; edlinks.chemengonline.com/5825-531) and UOP LLC (Des Plaines, Ill.; edlinks.chemengonline.com/5825-532) plan to construct at Total Petrochemicals site in Feluy, Belgium, a demonstration plant consisting of a UOP/Hydro methanol-to-olefin (MTO) process integrated with a Total Petrochemicals/UOP Olefin Cracking process (OCP) unit. This will be the first time these two processes have been integrated together to produce light olefins — predominantly propylene — from methanol. Prior to this, the MTO process has been demonstrated in a 0.75-m.t./d (methanol feed) plant at Porsgrunn, Norway (CE, January 1996, p. 17). The OCP process was also demonstrated in 1998 and, after further development with Total Petrochemicals (formerly Atofina), made available for license in 2003 (CE, August 2003, p. 13). The MTO process (flowsheet) features fluidized-bed reactors utilizing a proprietary zeolite catalyst (silicon, aluminum and phosphorous molecular sieve), which UOP developed for producing high yields of ethylene and propylene. The MTO reactor operates in the vapor phase at 350–550°C and 1–3 barg. Fresh methanol feed is converted primarily into ethylene and propylene with some C4–C6…
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