No.
Powering the MortalCoil Multiple-Voiced Active pickups at 24 Volts can potentially cause damage to the built in preamp.
They can be powered at 9 Volts, or 18 Volts without issue.
For more questions about MortalCoil Multiple-Voiced Active pickups or other Seymour Duncan products, please contact support@seymourduncan.com or call customer support at 805-716-6747.