An Overview of Air Products’ Cutting Edge APX LNG Process Technology and Equipment

Air Products will provide its proprietary APX natural fuel liquefaction course of expertise and equipment. This contains main cryogenic heat exchangers (MCHEs), subcooling heat exchangers, and Rotoflow turbomachinery companders

. The MCHE and SCHE will be designed, engineered and manufactured at Air Products’ LNG equipment facility in Port Manatee, Florida. This is the identical manufacturing location the place we have developed more than 75 LNG heat exchangers over four decades

. The AP-X Process Cycle

The coronary heart of an LNG plant is its liquefaction process, which transforms natural fuel into liquid kind. This allows it to be transported by sea for economical distribution around the world. However, this transformation course of destroys large quantities of potential power that can be retrieved and used for electricity

. Air Products has developed an sophisticated liquefaction technology, known as AP-X, to enhance the effectivity of the compressors that liquefy the LNG. It makes use of a new, multi-stream exchanger design and different modifications to decrease power losses, while growing polytropic effectivity of the compressors

. The AP-X expertise is being deployed at the Qatargas 2-Train 4 LNG facility in Ras Laffan Industrial City, Qatar. The liquefaction practice is rated for an annual LNG creation capability of seventy eight. million tonnes per year, and contains three wellhead platforms with eleven wells each, as well as an onshore fuel processing terminal and a fleet of 14 Q-Flex tankers. It additionally makes use of two subsea pipelines shared with the adjoining Qatargas 3-Train 5 LNG facility

. The AP-X Equipment

Air Products offers key equipment and expertise for 12 of the 14 LNG trains at the moment in operation at Qatargas’ Ras Laffan facility, including the preliminary models that started up in 1996 using AP-C3MRTM LNG course of technology; six AP-X LNG Process models that started up between 2009 and 2011; and two new AP-X LNG Process models that are beneath building for the North Field South (NFS) project. The company’s liquefaction equipment contains main cryogenic heat exchangers, subcooling heat exchangers, Rotoflow turbomachinery companders and nitrogen economizer cold boxes

. The AP-X equipment makes use of the proven, patented AP-X liquefaction cycle that improves upon earlier cooled combined refrigerant processes by subcooling the LNG with a easy and effective nitrogen expander loop. This enables larger capacity, improved power effectivity and operational flexibility over a wide variety of creation capacities

. The liquefaction equipment is engineered and developed at Air Products’ world-class Port Manatee, Florida, manufacturing facility. This state-of-the-art facility opened in January 2014 and accomplished a 60% expansion in October 2019 to meet the wants of an ever-expanding LNG industry

. The AP-X Technical Services

The design and creation of LNG plants is driven by company aims such as producing a optimum quantity of cargoes, assembly delivery schedules and operating inside specific product specifications. Failure to meet these aims can end result in off-specification items and heavy penalties. Managing the plant to achieve these aims requires close manage of the process, equipment and operation

. Air Products’ AP-X expertise is well suited to this variety of management as the course of makes use of an improved liquefaction cycle that subcools with a easy nitrogen expander loop, instead than a more complex combination of refrigerants. This allows considerably larger capability to be achieved

. Combined with an execution technique maximising commonplace vendor packages and modular construction, the AP-X course of offers a low target plant price that can compete with different LNG liquefaction applied sciences for a small practice capability. The expertise additionally offers high power effectivity and can function at a wide variety of creation capacities

. The AP-X Project

Air Products’ LNG course of expertise is at the coronary heart of an LNG creation plant, processing and cryogenically liquefying natural fuel so that it can be shipped economically to meet the world’s power wants. The company’s proprietary coil wound main LNG heat exchangers are used to liquefy the fuel and additionally are dependable for producing vapor and liquid refrigeration to maintain the integrity of the LNG in the course of transport

. The company’s equipment and expertise is key to Qatar Petroleum’s significant liquefied natural fuel (LNG) creation expansion project, frequently known as the North Field East Project, in Ras Laffan, Qatar. Air Products is supplying its AP-X LNG Process expertise and equipment for two of the four trains being fabricated for NFE that will provide considerably larger LNG production

. The company has supplied key expertise and equipment to all 14 existing Qatari LNG trains operating in Ras Laffan, including the preliminary models which started creation in 1996 with Air Products’ AP-C3MRTM LNG technology; six AP-X LNG Process trains that started up between 2009 and 2011; and two AP-X LNG Process trains being fabricated for NFE. This totals over 82% of the world’s nameplate capability for LNG creation using this technology


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Michael Bourdon

Michael Bourdon


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