Propylene Fractionation & Services

Our propylene fractionation and related operations consist of seven propylene fractionation plants, pipeline systems aggregating approximately 680 miles in length, and related petrochemical marketing activities. This business includes an export facility and associated above-ground polymer grade propylene storage spheres located in Seabrook, Texas.

In general, propylene fractionation plants separate refinery grade propylene (a mixture of propane and propylene) into either polymer grade or chemical grade propylene along with by-products of propane and mixed butane. Polymer grade and chemical grade propylene can also be produced as a by-product of ethylene production. The demand for polymer grade propylene primarily relates to the manufacture of polypropylene, which has a variety of end uses, including film packaging, fiber for carpets and upholstery and molded plastic parts for appliance, automotive, house ware and medical products. Chemical grade propylene is a basic petrochemical used in the manufacturing of plastics, synthetic fibers and foams.

Recent Developments

  • Propane dehydrogenation ("PDH") units - expected to consume up to 35 MBPD of propane as feedstock and have the capacity to produce up to 1.65 billion pounds per year of polymer grade propylene. Expected to begin commercial operations in 2015.

Asset Descriptions

Description of Asset Ownership Interest Total Plant Capacity (MBPD) Length (Miles)
Propylene Fractionation Facilities
Mont Belvieu (six units) Various(1) 87  
BRPC 30% (2) 23  
Total Capacity 110  
Petrochemical pipelines
Lou-Tex and Sabine Propylene
(TX & LA)
100%   287
Texas City RGP Gathering System (TX) 100%   164
North Dean Pipeline System (TX) 100%   149
Others (6 systems) (3) Various (4)   76
Total miles 676
  1. Enterprise owns a 66.7% interest in three of the units which have an aggregate of 41 MBPD of total plant capacity. We own 100% of the remaining three units.
  2. Our interest in this facility is held indirectly through our equity method investment in Baton Rouge Propylene Concentrator LLC ("BRPC").
  3. Includes our Texas City refinery grade propylene delivery system and Port Neches, SR4, Port Arthur, LaPorte and Bayport petrochemical pipelines.
  4. We own 100% of these pipelines with the exception of the 17-mile LaPorte pipeline, in which we hold an aggregate of 50% indirect interest through our equity method investments in LaPorte Pipeline Company LP and LaPorte Pipeline GP, LLC

For more information on the assets, please refer to the most recent Form 10k or Quarterly Reports on Form 10-Q and other SEC filings.