CB&I designs and builds low-maintenance LPG recovery plants that provide maximum liquids recovery with minimal operating costs. Our plants utilize state-of-the-art cryogenic turbo-expander technology to recover propane and other heavier hydrocarbons from natural gas streams.

We offer a lump-sum, turnkey package that includes everything from process and conceptual design to detail engineering, procurement, fabrication, construction, commissioning and startup. We perform the work with our in-house resources whenever possible because we believe an integrated approach translates into better quality control, shorter schedules and often lower costs for our customers.

Innovative plant features. Our seasoned process engineers have developed innovative plant designs that feature the industry's tallest demethanizer, oversized brazed aluminum exchangers for very close temperature approach and a modified refluxed demethanizer for additional ethane recovery. In addition, our plants feature a heat exchange train that can easily be modified to add propane refrigeration.

Our plants achieve high propane recovery with complete ethane rejection, and our cryogenic propane recovery plants recover 99 percent or more of butanes and heavier components. These units are suitable for both low and high inlet gas pressures. They feature few moving components and simple process designs, so they perform reliably, are easy to operate and require very little maintenance. And they are designed for minimal utilities consumption, which can reduce owners' on-going operating costs.

Efficient erection methods. LPG recovery plants can be built utilizing modular construction methods, which can result in shorter schedules and sometimes lower costs for our customers. Modular plants are prefabricated and pre-assembled at our fabrication shops and can be shipped anywhere for installation. By fabricating most of the unit in our own shops, we can implement rigorous quality and safety controls and reduce project delays due to inclement weather. Minimizing fieldwork also reduces the project's impact on other operations at the installation site and allows some procedures, such as permitting and transportation arrangements, to be handled concurrently. Modular construction also requires less on-site skilled labor, which can translate into lower costs for the customer.