Project Overview
Pembina Pipeline Corporation has submitted an application under the Environmental Protection and Enhancement Act for an approval to construct a new Cogeneration Plant 1 at the Empress Natural Gas Liquids Straddle Plant Facility. The project consists of a gas turbine generator powered by fuel gas (natural gas) blended with regeneration gas, that will generate electrical power and a Heat Recovery Unit (HRU) for the generation of thermal energy via exhaust gas.
About Empress
There are three processing plant complexes in Empress—one with multiple natural gas processing plants. These facilities currently have a combined operable capacity to process up to 9.8 billion cubic feet per day (Bcf/d) of natural gas, making Empress North America’s largest natural gas processing center. These natural gas processing plants play a unique role in North America’s natural gas infrastructure network.
The natural gas processing plants at Empress process all-natural gas flowing east out of Alberta. In 2019, the Empress plants processed 4.3 Bcf/d of natural gas, separating out 132,000 barrels per day (b/d) of natural gas plant liquids (NGPL), including 68,000 b/d of ethane, and sending out 4.1 Bcf/d of dry natural gas. Natural gas processing at Empress takes place at three sites:
PMC-operated Empress (also known as the Amoco plant), which has three natural gas processing plants: Empress I (2.5 Bcf/d capacity), Empress II (2.6 Bcf/d capacity), and Empress V (1.1 Bcf/d capacity)
PMC-operated Empress 6 (also known as the Petro-Can site), which has one 2.4 Bcf/d processing plant
Pembina-operated PanCdn Empress processing plant, which has 1.2 Bcf/d of capacity
Unlike most natural gas processing plants, however, the plants at Empress, and three similar sites elsewhere in Alberta, do not process natural gas delivered from a gathering system. Rather, the facilities, called straddle plants, process natural gas that is already flowing on the NOVA Gas Transmission LTD (NGTL) natural gas pipeline system and extract natural gas plant liquids (NGPL)—primarily ethane—that were not removed at natural gas processing plants in the production areas of Alberta. From Empress, the processed natural gas then leaves Alberta on either the Foothills SK pipeline, which delivers natural gas into the Northern Border pipeline at Port of Morgan, Montana, or on the Trans Canada Mainline (TCPL Mainline) to eastern Canada, which also serves the U.S. Midwest via the Great Lakes pipeline and other connecting pipelines.
NGPL produced at Empress are moved to market on three other pipelines:
PMC’s Plains Petroleum Transport Company (PPTC) pipeline, which delivers propane as far east as Winnipeg, Manitoba
PMC’s Empress/Kerrobert pipeline, which delivers diluent (natural gasoline) to blend into crude oil at Kerrobert, Saskatchewan, and a propane/butane mix to be shipped on the Enbridge Line 1
Pembina’s Alberta Ethane Gathering System (AEGS), which delivers ethane to Alberta’s petrochemical plants
About Intrepid
Intrepid Group is a Western Canadian company focused on helping our customers grow through creative ideas, partnerships and technology.
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