Feb 21 (Reuters) - Keyera Corp KEY.TO
* Keyera announces operational outage at Alberta Envirofuels
* Alberta Envirofuels facility has been shut down for repairs following an operational issue that developed this past weekend
* Identified a damaged piece of equipment that will require repair before operations can resume
* Alberta Envirofuels facility is currently expected to be offline for approximately one month Source text for Eikon: ID:nCNWFgFwBa Further company coverage: KEY.TO