Thermal power station Compressor unit in Germany
The fuel gas compressor unit will deliver fuel gas to the heat and power gas turbine system for district heating.
To support the goal to be climate-neutral in 2035, Heizkraftwerk Nord has implemented a new gas turbine system for the district heating facilities in Bonn Germany, ready for future operation with Hydrogen.
The compressor unit will boost the pressure up to the required conditions of the turbine. A complete by-pass system is included in case the grid pressure is sufficient for part-load of the turbines. Switching from the by-pass mode or boosting mode is completely automated by the unit control system.
Fire fighting is included, ready for on site VdS certification. There is an attached acclimatized control room, making the complete unit a stand-alone operatable installation independent from the rest of the plant.
The unit is designed according European regulations, with additional requirements acc. DVGW rules G463, G498 and G442.
Natural Gas Conditioning Station for Germany
Eltacon engineered and manufactured a natural gas station for installation in Germany, designed and build according to the European regulations.
The natural gas conditioning station is installed at a power plant, upstream of a gas turbine. The gas is filtered and heated to the required temperature. Heating of the natural gas is done with hot water in a double tube heat exchanger.
The incoming gas is cleaned in a two stage knock-out coalescer filter. The second step is to heat up the gas to a constant temperature of 65 °C. The heating is done with a double tube (safety type) heat exchanger with hot water coming from the power plant. The double tube design is based upon a tube within a tube. By doing this there is a safety barrier between the water system and the gas system. At the outlet of the unit the gas temperature and gas flow is measured. The temperature of the gas is controlled by a temperature control valve in the water system.
Due to the limited space around the unit the design is very compact and the inlet and outlet connections are placed vertically.
For more information about gas conditions stations, please contact us via sales@eltacon.com
Compressor units and treatment systems for decarbonizing power supply in Germany
Eltacon delivered the natural gas compressor units and downstream gas and hydrogen treatment systems to supply the conditioned fuel to the turbines.
To be independent of the existing coal fired power plants, a new natural gas (and in the future hydrogen) power plant with combined heat and power technology will be used for electricity and district heat for the city of Leipzig.
The compressor units will boost the pressure up to the required conditions of the SGT’s. A complete by-pass system is included (outside the compressor unit enclosure) in case the grid pressure is sufficient for part-load of the turbines. Switching from the by-pass mode or boosting mode is completely automated by the unit control system.
The unit is designed according European regulations, with additional requirements acc. DVGW rules G463, G498 and G442.
The units are currently installed on site and will be in operation on natural gas by the end of this year, with steps switching to a higher hydrogen concentration to reduce the carbon emission. The long-term goal is to operate the facility with up to 100% hydrogen.
Natural Gas Conditioning Stations for Germany
Eltacon engineered and manufactured three natural gas stations for Germany, designed and build according to the European regulations.
The three natural gas conditioning stations are installed to supply natural gas to gas turbines with HRSG boilers at a powerplant in Germany. The natural gas is filtered, heated, the flow rates are measured and the gas pressure is reduced to the correct pressures for the consumers.
At first the gas is cleaned by a common 2×100% two stage filter/separators, 1st stage a mono-cyclone in the 2nd stage cellulose element. The second step is heating to compensate the cooling of the gas by the Joule Thomson effect during the pressure reduction and to heat up the gas to 70°C to increase the efficiency by using waste heat (hot water). Heating of the natural gas is done in double tube heat exchangers. Double tube means a tube within a tube. By doing so there is a safety barrier between the hot water and the natural gas.
After the heater the gas is divided into two gas streams, one for gas turbine and one for the HRSG boiler. In each stream the gas flow is measured by an ultrasonic flowmeter suitable for custody transfer. To supply the gas at the correct pressures to the HRSG boiler, the pressure is reduced with self- acting pilot operated pressure control valves in a monitor-active arrangement. For safety purpose there is a slam shut valve upstream the regulators complying with EN-12186. The complete natural gas conditioning station for one gas turbine with HRSG is built on one skid frame to reduce the erection and commissioning time at site.
For more information about our gas conditions stations, gas compressor installations and other skid mounted visit our website www.eltacon.com or contact us via sales@eltacon.com for your question and request for quotations.
Onshore gas booster compressor for barge-mounted power plant.
The Eltacon compressor unit provides fuel gas to the Estrella del Mar III project, which features a 145MW combined cycle power plant.
The SeaFloat barge-mounted power plant contains of 2x SGT-800 gas turbines (and a SST-600 steam turbine) and provides a mobile and flexible delivery of power at high efficiency in the Dominican Republic. The fuel gas will be provided from onshore LNG facilities. The current pressure is not sufficient for the barge and therefore requires additional gas boosting.
The inlet pressure fluctuates from 19 to 48 barg where 34 barg is required at the GT. The gas booster compressor will compress the fuel gas, based upon the demand from the barge and available inlet pressure. In case the inlet pressure is sufficient for the barge, the compressor unit will automatically shut-down and remains available for operation in case the inlet pressure drops.
The stand-alone compressor unit is equipped with an attached control room, water mist fire fighting and a top mounted dry-air cooler.
The compressor unit will be accompanied by supplemental upstream filtration to avoid any ingress from the upstream LNG pipeline will disrupt the system, as well as a safety coalescer filter skid upstream the GT’s.
On the barge itself Eltacon has provided a fuel gas performance heater to increase the temperature of the gas, boosting the efficiency of the GT’s.
Gas Treatment for a CHP facility at a paper mill in the UK.
For the Combined Heat and Power facility Eltacon Engineering BV delivers several gas treatment packages for installation upstream an SGT-800 Gas Turbine.
The gas turbine will deliver heat and power to the paper mill facility with a total electrical capacity of 75 megawatt. To operate the turbine in a correct, trouble free and high efficient way the upstream gas treatment systems from Eltacon are used to prepare the gas accordingly.
From the local grid, the fuel gas reaches the facility with fluctuating pressures between 15 and 38 bar. A Gas Receiving Station will filter the gas from any ingress coming from upstream piping and components. A flowmeter and gas chromatograph are foreseen to measure the amount and quality of the gas. The pressure of the fuel gas going forward will be limited to 31 bar by means of a pressure control system.
In case the gas pressure of the grid is in the range of 15-27 bar the downstream gas booster compressor will compress the gas to 31 bar. The booster will operate in a complete automatic mode, by means of a by-pass and automatic shut down in case boosting is not required. The reduction of operating hours of this system in case of sufficient pressure reduces power consumption of the complete facility and therewith reduction of carbon emissions.
In order to increase the efficiency of the Gas Turbine, the gas is filtered and heated up to 120°C at the final treatment system. Heating of the gas is by means of using hot water returning from the facility, making the combined cycle even more efficient.
By combining fuel gas filtration, required measurements, pressure limitation and automatic boosting, as well as performance heaters, the complete fuel gas treatment system from Eltacon Engineering BV contributes to a more efficient facility and provides a one-stop-shop for the client for their fuel gas treatment.
Gas Treatment System for Kazakhstan.
Eltacon delivered a Gas Treatment System for Kazakhstan, suitable for cold environment and including TR CU certification
For gas treatment upstream two SGT-600’s, Eltacon manufactured complete units with gas filtration, electrical gas heating and pressure reduction with accumulator vessel. The skid based units are suitable for cold environments down to -38°C and are delivered with heat tracing, insulation, heated instrument enclosures as well as a weather protection roof.
The gas is filtered using a dual stage filtration system. After heating the gas to 20°C above the dew point temperature (unit gas outlet temperature coping with the Joule-Thomson effect), the pressure is reduced to a steady 23,5 barg for continuous GT operation.
As for Kazakhstan being part of the Eurasian Custom Union, the units are delivered according the Technical Regulations for the Custom Union (TR CU or EAC).
Fuel Gas Mixing Systems for LNG application in Russia
Eltacon engineered and manufactured two Fuel Gas Mixing Systems (FGMS) for the Vysotsk LNG plant in the Leningrad Region in Russia.
Each FGMS is used for gas treatment upstream a gas turbine. These turbines run on a mixture of three gases. Heavy Hydrocarbons removed during LNG production and Boil-Off Gas from LNG storage are mixed with the Natural Gas supply in order to increase the overall plant efficiency.
The gas flow in each of the three feed lines can be controlled individually with the installed flow and pressure control valves. The quality of the mixed gas is monitored by measuring the Wobbe Index with the skid mounted gas analyser. If required, the mixing ratio will be adjusted.
The mixture passes through a large buffer vessel followed by a two-stage gas filter in 2 x 100% configuration. Lastly the gas is electrically heated to 80 °C before being fed to the turbine to avoid condensation of the mixed gas.
To cope with the Russian climate a weather protective roof is installed and all process piping and vessels are heat traced and insulated. For accessibility several ladders and platforms are included.
The units are completely certified according to the TR CU and are provided with an EAC mark.
For more information about Fuel Gas Mixing Systems or other Gas Treatment systems, please contact us via sales@eltacon.com
Natural Gas Conditioning Station for Germany
Eltacon engineered and manufactured a natural gas station for installation in Germany, designed and build according to the European regulations.
The natural gas conditioning station is installed at a power plant, upstream of a gas turbine. The gas is filtered, measured, heated and reduced to the correct pressure. Heating of the gas is done with steam in a double tube safety heat exchanger. During start-up of the combined cycle gas turbine the gas is pre-heated with an electrical heater.
The gas is first cleaned in a one stage coalescer filter. The second step is the measurement of the mass flow with a coriolis flowmeter. Heating is installed to compensate the cooling of the gas by the Joule Thomson effect during the pressure reduction and to heat up the gas 20 °C above the inlet temperature to have margin between the actual temperature and the dewpoint temperature. This heating is done with a double tube (safety type) heat exchanger with hot steam coming from the power plant. The double tube design is based upon a tube within a tube. By doing this there is a safety barrier between the steam and the natural gas.
For start-up purpose when no hot steam is available yet, an electrical heater is installed downstream the double tube heater complete with thyristor control panel. Pressure reduction is done with a pilot operated self- acting pressure control valve. As a safety, there are two slam shut devices, one integrated at the pressure control valve and a second as a separate valve upstream the pressure control valve.
For more information about gas conditions stations, please contact us via sales@eltacon.com
New Mobile Wellhead Compressor in the Netherlands
In order to extend the lifetime of a “nearly depleted” gas well, Eltacon has delivered a Mobile WellHead Compressor.
The MWHC will boost the gas coming from the well to a suitable pressure for transportation and further processing. Using an oil injected screw compressor with a “wide range” capacity control, the package is suitable for lowering the well pressure down to 1 barg and therefore extending the total lifetime of the well. After depletion, the unit can be moved to other locations due to its high flexibility in operating parameters.
Eltacon manufactured the first MWHC for gas wells in Siberia in 2010, the MWHC has proven its value and capability over the last years and is now used on several sites in The Netherlands as well.
Improvements from the pilot unit include an integrated high efficiency separation section including slug catchers to be able to cope with condensate and salt. With this additional section as part of the unit, the MWHC can run without upstream filtration systems.
For more information on the MWHC units please contact sales@eltacon.com.
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