7 October 2022

Booster compressor station will be part of ENERGAS gas treatment system and will provide the specified design parameters of the fuel before it is fed to the turbines of the power supply complex.



HAYAT Russia is increasing its production capacities – a large plant for the production of sanitary and hygienic paper products is being built at the Borovsk site of the Kaluga special economic zone.

Here, an autonomous (decentralized) power supply complex is also being created to supply production with its own energy resources. Electricity will be generated by the two SOLAR Mars 100 gas turbine unit (GTU) with an installed capacity of 10 MW each. The production of high-potential process steam will be provided by the two waste heat boilers with a productivity of 15 t / h each. In addition to the cogeneration power unit, the structure of the power supply complex includes an auxiliary gas boiler house.

The supply of the GTU and boiler house with fuel with the pre-set design parameters in terms of purity, temperature, pressure and flow rate will be guaranteed by the ENERGAS multifunctional system – a block-type gas treatment station (BGTS) and a booster compressor station (BCS).

BGTS with a throughput of 9,317 m3 / h is intended for metering, filtration, pressure reduction and quality control of gas. This process unit has been put into operation and at this stage (before the GTU launch) provides fuel to the boiler units.



The screw-type booster compressor station, which is part of the ENERGAS system, is intended to compress the fuel treated in the BGTS and feed it to the turbine at a pressure of 2.6 MPa. The maximum volume capacity of BCS is 6,336 Nm3 / h, gas flow rate depends on the load of the GTU and is controlled in the range from 0 to 100% by a special two-circuit regulation system.

The process flow scheme of the BCS guarantees stable maintenance of the design fuel temperature necessary for the normal operation of turbine. The delivery line of the station is equipped with a shell-and-tube heat exchanger that cools the working medium and ensures the optimum gas supply temperature (up to +70°C) set by the GTU manufacturer and terms of the project.

Taking into account the stringent requirements for the purity of fuel gas, the basic filtration system of the BCS, consisting of gas-oil separator and coalescing filter of the 1st and 2nd stages of purification, is enhanced due additional elements: 1) a protective strainer is installed on the suction line of the compressor station; 2) a safety filter for fine purification of gas is built into BCS module. Eventually, the content of impurities in the fuel at the inlet to the GTU shut-off valve block does not exceed 0.1 ppmw (mg / kg).



Gas-booster unit is housed in its individual shelter equipped with life support systems. According to safety requirements, BCS is equipped with fire detection, gas detection, alarm, and fire-extinguishing systems.

At present, the station has been mounted at the operational site of new HAYAT enterprise. The installation, alignment and fixing of the BCS on the foundation, assembling of large units, electrical power connection have been completed, air cooling devices were built on.

Piping arrangement, gas feeding and equipment adjustment are planned. The BCS was supplied in maximum factory readiness (after workshop tests) what significantly reduces the duration of the pre-start works.

Commissioning of the gas compressor station – erection supervision, starting-up and adjustment, own and integrated tests as well as training of operational personnel are carried out by the specialists of ServicENERGAS (ENERGAS Group).



REFERENCE:

Among the priorities of the ENERGAS Group are production, comprehensive commissioning and maintenance of gas treatment and compression units for generating facilities in the electric power industry, oil and gas complex and industrial enterprises. Today, the ENERGAS process equipment provides high-quality fuel for 230 gas turbines and gas-reciprocating units with a total capacity of over 6.7 GW.

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