Service has begun on a 30,000-ton refrigerated ethylene storage tank at an export facility in Morgan’s Point, TX, owned through a 50-50 joint venture between affiliates of Enterprise Products Partners LP and Navigator Holdings Ltd., the companies announced Tuesday.

The first vessel to utilize the service, a 21,000 cubic meter ethylene gas carrier, was loaded at the facility, located on the Houston Ship Channel, last week. The newly in-service storage tank is designed to allow faster loading and increase efficiency for customers, enabling a nameplate export capacity of 1 million tons per year.

The storage tank will be supplied by a 600 million pound ethylene storage cavern located at a complex operated by Enterprise in Mont Belvieu, TX. Enterprise management said it has the...