The filter separator removes foreign materials like debris, dust and liquids to prevent them from damaging downstream systems. We monitor any rising differential pressure between inlet- and outlet of the vessel, which indicates that the filter elements should be replaced.
We have worked with gas supplies having high acid and salt content, always conditioning the gas to give a clean dry stream to turbines for maximum up-time. Filters are automatically or manually drained, and there are various mounting orientations for easy operation.
Options include:
- ASME U-stamp / AD2000 / PED vessel certification
- Baffle plate, Mono or Multi Cyclone primary separation stage
- Liquid, Dust or Combined Liquid&Dust filter cartridges (Petrogas design & make) secondary filtration stage Click here
- Bolted top cover or quick closure to pcover for easy access to cartridges
- Self- or manually draining
- Single-, double- or triple-redundant control
- Parallel runs eliminate downtime, automatic run switching is possible
- Optimum internal vessel and piping layout ensure lowest pressure loss
- Horizontal or vertical vessel orientation depending on your preference and/or process conditions
EASIER
We ensure that components which require regular maintenance are easy to reach for spare parts replacements. On our filters an optional quick closing top cover allows easy access to the filter elements and cartridges, and it can be manipulated by an optional overhead hoist.
The skid platform is designed in a configuration that makes it easy to operate and maintain the critical system components safely. The after sales department can provide spare parts and/or regular scheduled maintenance to ensure the filter section stays in top condition. That brings peace of mind to our customers, who can be sure of maximum uptime.
We can supply a wide range of natural gas filters and separators, each suiting specific applications and gas conditions. That gives the best separation method for your specific needs for optimum performance and up-time. Optional equipment includes baffle plates, cyclone coalescer filters and cyclone coalescer separators, demisters, dust filters and powder filters.
SMARTER
Our turnkey systems include all the local and control-room connected instruments and controls you need to run efficiently and safely. Real-time monitoring lets you use live operational data for preventive and predictive maintenance schedules.
The right separation method is chosen for your specific needs, ensuring optimal performance and up-time.
To keep you alert, Petrogas’ control software produces automated signals when measurements reach critical levels, to indicate upcoming maintenance requirements. The differential pressure between filter inlet and outlet is monitored too, and our smart software signals the operator when a critical level indicates that the filter elements need to be replaced.
BETTER
Our custom design ensures you get the exact high-performance system you need. We supply to your exact requirements, right down to the make of individual components.
Equipment is skid mounted for fast on-site erection and there’s a choice of high-tech filter types, all with the same skid layout.
We have also developed a system to separate out black powder from the gas flow using a combination of magnetism and filtration technology. Black Powder is formed when corrosion in a pipe reacts with elements of sour gas. It can cause major damage to downstream equipment like compressors and turbines. Due to its flour-like consistency it is difficult to remove from the gas flow, but our black powder filter does this efficiently.
We have both filter/separators and separators. A separate vessel is often used upstream of the filter/separator to eliminate large chunks of debris and liquid slugs.
A knock-out drum with optional demister can be installed where the natural gas is accompanied by considerable quantities of water, hydrocarbon condensates or other fuels. Condensates can be drained manually or automatically to a storage facility.
We meet all relevant design codes and standards.
Case studies
Short 32-week turnaround time
Fuel gas inlet station for power plants
- What did our customer request?
-
This project was part of an agreement between Siemens and the Egyptian government to add 50% more energy to the power grid within a number of years. We were asked to supply the Fuel Gas Conditioning Station for three of the prospective power plants (Beni Suef, Burullus and New Capital). After completion in May 2018, the three power stations will be the largest gas-fired, combined cycle power plants ever built and operated in the world. And they will supply enough electricity for 45 million people.
- Our solution
-
Petrogas delivered the fuel gas systems for the 24 H-Class gas turbines, designing, engineering and fabricating the system sections. In particular, we developed a custom DRIP-barrel (horizontal liquid separator) and also supplied Emergency Shut-Down, inlet filters, electrical heaters and control cabinets.
- What set the project apart?
-
We usually build all the pressure vessels and pipes in our own workshop in Eindhoven, the Netherlands. Because of the size of the project, though, we outsourced part of the production to some of our expert subcontractors.
Together, we helped Siemens to set a new worldwide benchmark for the execution of a fast-track power generation project. After completion of the first phase Siemens was already able to connect 10% more power to the grid than forecast, a surplus sufficient to supply electricity to an additional one million people in Egypt.
- What were the project challenges?
-
“The short turnaround time was a real challenge. For a project like this it is usually 10 to 12 months, but we delivered the installation within 8 months. Siemens was delighted with the result and the plants actually achieved first-fire well ahead of schedule.”
- What did our customer request?
-
Cegelec needed more electric capacity at a petrochemical industrial complex on Das Island off the coast of Abu Dhabi. Petrogas was asked to supply the fuel gas conditioning units for the natural gas powered turbine generators. These units ensure that the gas arrives at the gas turbines under the right conditions.
- Our solution
-
The natural gas was being sourced from different locations, so there were differences in pressure, composition and temperature. Gas from one of the suppliers also had high acidity. Petrogas supplied the installation to filter and heat the gas and reduce the pressure.
- What set the project apart?
-
The limited amount of space on the island meant the installation had to be as compact as possible, while leaving enough room for operation and maintenance.
- What were the project challenges?
-
“Initially, the requirements for the fuel gas conditioning units were fairly basic. But as the project progressed, several new key design requirements became evident. We pride ourselves on our versatility, and responded quickly to incorporate all the additional demands.”
Dedication and hard work
Ras Al-Khair Power Plant (fuel gas system)
- What did our customer request?
-
The Saline Water Conversion Corporation is a Saudi Government Corporation responsible for producing electric power and desalinating seawater. The SWCC Ras Al Khair project was at the time the largest combined power and desalination plant in the world and won the prestigious “Desalination plant of the year” award in 2015. It is a landmark project for SWCC.
The plant converts more than 1 billion litres of seawater into potable water each day, transforming the potable water situation in Riyadh, one of the world’s fastest growing and most water-stressed cities. The plant also produces 2400 MWe of electricity for the Eastern Province of Saudi Arabia and helps to power the nearby Ma’aden/Alcoa Aluminium plant.
The power plant is gas & oil fired, and Petrogas won the contract for the fuel gas conditioning station with 1 million Nm3/h capacity for 12 gas turbines, along with the backup fuel oil system to ensure a high quality, reliable and continuous supply of fuel for the turbines. Waste heat and reverse osmosis are used to desalinate 1 billion litres of sea water per day. - Our solution
-
In close cooperation with the owners’ engineer Pöyry, we designed six identical blocks. Each had two mirrored gas conditioning systems including Emergency Shut-Down valves, filters, flow meters, heaters, pressure reducing systems for GTs and boilers, pressure boosting compressors and a high pressure gas buffer system. Petrogas built the skid-based system in workshops in the Netherlands and China, and erected and commissioned the system on site.
- What set the project apart?
-
Because Petrogas has both engineering and fabrication in-house, our customer benefitted from our practical experience in the initial basic design phase. The design was optimized before Petrogas built the skids, wrote the control software and performed the on-site commissioning.
The system can boost gas pressure for a prolonged period and can maintain gas supply for several minutes when the gas feed is interrupted to allow the turbines to switch to fuel oil. Petrogas played a substantial role in drawing up the operating philosophy between all these systems. - What were the project challenges?
-
“The sheer size of the project made it a challenge. The system is actually twelve complete 12” gas conditioning systems with 100% redundancy. The photo shows the stacks of the Water Bath Heaters, 36 in total.
Resources, planning, logistics between several workshops and dozens of suppliers all required a creative approach. The order came in 2011 when we already had a healthy backlog, and the order was worth about a year’s turnover. Petrogas successfully completed the job thanks to the dedication and hard work of our personnel and suppliers. “
- What did our customer request?
-
Our customer required a fuel gas conditioning station for the Al Diwaniya project. The station prepares and conditions the gas before it enters the turbine, ultimately to generate electricity. The conditioning entails filtering, heating and reducing the pressure.
- Our solution
-
Petrogas supplied the Fuel Gas Conditioning Station, including hardware and control systems. A fuel gas metering system measures the gas used, and a safety valve shuts down the gas supply in case of extreme pressures or temperatures.
- What set the project apart?
-
Petrogas also performed part of the overall engineering. From our experience in similar projects, we advised the customer to approach a number of things differently to improve safety and efficiency.
- What were the project challenges?
-
“Al Diwaniya is located around 250 km south of Baghdad, in a region with security risks. Thanks to our local network of qualified professionals we assembled and commissioned the system on site. An innovative design meant we could easily mount the skids against each other on site, leaving just the bolts and nuts to be tightened.”
Contact us
Would you like to discuss your project with our Experts? Please feel free to contact us.
Direct contact with our Experts
Your interest
Gas Filtration & Separation
