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GEA supplies compressor packages for refinery application in Azerbaijan
18 Feb 2021
Honeywell UOP selected GEA Refrigeration Technologies’ oil & gas team to supply engineered compression packages for a tail gas application at a refinery in Azerbaijan. Utilizing GEA's most powerful screw compressor, the GEA model XH, the systems are designed for a modernization program at the refinery.
GEA tail gas compression packages featuring GEA XH oil-flooded, single-stage screw compressors. (Photo: GEA)
Project overview
GEA's tail gas packages were selected for the project by Honeywell UOP as part of their Pressure Swing Adsorption (PSA) technology to supply high-quality hydrogen for the modernization of the Heydar Aliyev Oil Refinery (HAOR) in Baku, Azerbaijan. Pure hydrogen is essential to the refining process, where it is used to decontaminate oil and facilitate catalytic processes that produce clean-burning fuels, including those that meet Euro V standards for vehicle emissions.
The PSA technology will help Azerbaijan meet the growing domestic demand for transportation fuels that meet the Euro V standards. Hydrogen technology is an important element of modernization program that will help the refinery in Azerbaijan to remain among the most advanced refineries in the region, further improving environmental protection along with the quality of life in Azerbaijan.
The modernization enables the refinery to process 7.5 million metric tons per annum of crude oil blended from local sources. Hydrogen is key in the refining process, being produced as a byproduct of refining and intentionally from a steam methane reformer. Honeywell UOP's PSA technology purifies this hydrogen so it essentially can be recycled into the refinery to remove impurities and to perform catalytic processes that transform crude oil into clean fuels and other products.
Tail gas treatment
The purpose of these tail gas compression units is to receive the tail gas – a gas mixture composition with up to ~70% hydrogen – from the PSA System and keep stable pressure at the PSA discharge. Received gas is compressed up to 6,7 bar(g) and then cooled down to 40°C in the after cooler before it is returned to the customer’s system.
These units are based on an oil-flooded screw compressor and the oil is separated from the tail gas into two oil separators (main and final) in order to deliver the gas with less than 1 ppm of oil content.
As an oil-flooded screw compressor, the oil circuit is provided for lubricating the internal part of the screw compressor. The oil circuit comprises two oil pumps (one in standby), a pressure control valve to keep the oil pressure constant and an electro-pneumatic three-way control valve to maintain the oil flow to the compressor at a fixed temperature. The oil circuit also comprises two oil coolers (one in standby) with a common inlet and outlet line for the cooling water system. The discharged oil at high temperature, recovered in the oil separator, is cooled down by using cooling water as a medium.
All vessels and all heat exchangers are designed and manufactured according to ASME (American Society of Mechanical Engineers) and TEMA R (Tubular Exchanger Manufacturers Association). GEA also provided the personnel protection with rock wool and aluminum and winterization of the entire oil circuit.
Technical data
The oil system of the GEA tail gas compression packages. (Photo: GEA)
Compressor: GEA oil-flooded, single-stage screw
Model: GEA XHA-XH36A-28
Capacity: 11427,0 Sm3/h
Gas Handled: Tail gas
Suction Pressure: 0,31 bar(g)
Discharge Pressure: 6,7 bar(g)
EM installed: 1.370 kW
GEA Refrigeration Technologies’ global oil & gas team provides custom process refrigeration and gas compression solutions for a wide range of industries and applications.
Honeywell UOP is a leading international supplier and licensor of process technology, catalysts, adsorbents, equipment, and consulting services to the petroleum refining, petrochemical, and gas processing industries.
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نبذة عن GEA تعتبر GEA واحدة من أكبر الموردين لصناعة معالجة الأغذية ومجموعة واسعة من الصناعات الأخرى والتي حققت إيرادات موحدة بلغت قُرابة 4.9 مليار يورو في عام 2019. تتخصص المجموعة الدولية للتكنولوجيا في الآلات والمصانع، وكذلك تكنولوجيا
