Maximizing Recoveries of Hydrocarbons
LPG Recovery and Fractionation
Liquefied petroleum gas (LPG) is a natural gas liquid, composed predominantly of propane (C3), butane (C4), or a mixture of the two. LPG is increasingly popular for a variety of applications, including heating homes, cooking, used as an alternative fuel for vehicles with combustion engines, or as a chemical feedstock. The gases that make up LPG are processed during the refining of raw natural gas and crude oil.
Enerflex engineers, designs, and manufactures LPG plants using C3 refrigeration with optional turbo-expanders to recover and separate propane, butane, and isobutane.
Fractionation is the first stage in separating LPG into propane, n-butane, and isobutane. The LPG, once in liquid form, is stored in tanks or cylinders for transport.
Enerflex in Action
- Taranaki, New Zealand
26 MMSCFD and 10 MTPA LPG Processing Facility
Enerflex engineered and designed an integrated LPG processing facility, which included a molecular sieve package, refrigeration unit, deethanizer, debutanizer, overhead gas compressor, feed gas compressor, sales gas compressor, and hot oil unit. Enerflex manufactured these modules in packages small enough to fit standard sea containers to minimize shipping costs. Using an advanced process engineering design unique to Enerflex, the facility achieves extremely high recovery of liquids from the gas stream.
From the project award, equipment was manufactured, shipped, and commissioned within 10 months. This multi-million dollar project to extract natural gas liquids, including propane (LPG) from locally produced natural gas, demonstrates Enerflex’s ability to leverage its North American capabilities globally.
- Palembang, Indonesia
Deep Cut Turbo-Expander LPG Processing Facility
Enerflex was awarded the contract for the expansion of an LPG brownfield plant originally completed by Enerflex in 2006. The target for the new plant was to increase LPG recovery to 94%, while increasing production to approximately 191 MT/D. The facility separates propane, butane, and condensate from liquids-rich gas produced locally, then processes the propane and butane into petrochemical and consumer-grade LPG.
The facility successfully increased the proportion of liquids recovered from the gas stream from 60% to 95%. Enerflex Kuala Lumpur and Jakarta provided the engineering and commissioning services, while the equipment was manufactured from our Canadian facility.