Dynamic Heat Exchange Solutions for Refineries
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Femke Schaëfer of Bronswerk Heat Transfer presented innovative process equipment solutions at the Global Refining Summit that can provide significant cost savings for refineries. Through three case studies, she showed how their compact heat exchangers and high-efficiency cooling systems can reduce capital and operating expenses by decreasing equipment size and power consumption, and limiting production losses from fouling through specialized designs. Their dynamic heat exchange solutions aim to help refineries become more sustainable and profitable.
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Dynamic Heat Exchange Solutions for Refineries
- 1. FACS - 31/3/2014Global Refining Summit 2014
- 2. Dynamic Heat Exchange Solutions Significant cost saving for refineries by innovative process equipment Femke Schaëfer Barcelona – March 31st , 2014 Global Refining Summit 2014 FACS - 31/3/2014
- 3. Topics: • Short introduction to Bronswerk Heat Transfer® • Improvement areas in refinery • Three case studies • Bonus Global Refining Summit 2014 FACS - 31/3/2014
- 4. Introduction Global Refining Summit 2014 FACS - 31/3/2014
- 5. Global Refining Summit 2014 FACS - 31/3/2014
- 6. Our markets: Sustainability Service & Maintenance Power Oil Gas Chemical Air Handling Food Processing Global Refining Summit 2014 FACS - 31/3/2014
- 7. Global Refining Summit 2014 FACS - 31/3/2014
- 8. Global Refining Summit 2014 FACS - 31/3/2014
- 9. What we do: • Thermal designs: based on: Aspen/HTFS HTRI HEI Computational Fluid Dynamics Hysys Global Refining Summit 2014 FACS - 31/3/2014
- 10. What we do: • Mechanical designs: - ASME - EN13445 - AD2000 - RTOD - PD5500 - CODAP - GOST FEM analysis Global Refining Summit 2014 FACS - 31/3/2014
- 11. What we do : • Process design: Process optimization Global Refining Summit 2014 FACS - 31/3/2014
- 12. What we do : • Equipment: Heat exchangers Air cooled coolers And other process equipment Global Refining Summit 2014 FACS - 31/3/2014
- 13. What we do : • Materials: Titanium (Super)Duplex Nickel-Alloy Inconel Other exotics Global Refining Summit 2014 FACS - 31/3/2014
- 14. What we do : • Systems: Incl. controls Global Refining Summit 2014 FACS - 31/3/2014
- 15. What we do : • Site work: Erection Assembly Start up Commissioning Service Global Refining Summit 2014 FACS - 31/3/2014
- 16. What we do : • Service & Maintenance: Upgrading Debottlenecking Inspection Specialist maintenance for machines operating hazardous materials Global Refining Summit 2014 FACS - 31/3/2014
- 17. Our focus on innovation: • Product development • System solutions • New technology Compact Header® Radiax® Whizz-Wheel® fans Global Refining Summit 2014 FACS - 31/3/2014
- 18. Global Refining Summit 2014 FACS - 31/3/2014
- 19. Global Refining Summit 2014 FACS - 31/3/2014
- 20. Global Refining Summit 2014 FACS - 31/3/2014
- 21. Global Refining Summit 2014 FACS - 31/3/2014
- 22. Area’s for improvement Global Refining Summit 2014 FACS - 31/3/2014
- 23. One: Newbuilds or Upgrading Start at the source: size reduction of process equipment during design Size of S&T heat exchangers Nr of S&T heat exchangers Size of air cooled coolers Global Refining Summit 2014 FACS - 31/3/2014
- 24. Two: Improvement of installation During operation; more efficient power consumption 25-30% of worlds energy consumption is used for ventilation Increasing output Global Refining Summit 2014 FACS - 31/3/2014
- 25. Three: Less downtime Maintenance; limitation of production losses by fouling reduction in Heat Exchangers Crude oil quality is dropping Decreasing production output Higher energy use and CO2 emission Maintenance is costly Global Refining Summit 2014 FACS - 31/3/2014
- 26. The solutions Global Refining Summit 2014 FACS - 31/3/2014
- 27. Current situation: •Huge plot space requirement •High power consumption for air coolers •Big influence on CAPEX & OPEX Case study 1 – High efficiency cooling Global Refining Summit 2014 FACS - 31/3/2014
- 28. Case study 1 – High efficiency cooling •New fan design based on aerospace technology •Intensified heat transfer through higher air pressure and velocity •Over 30% plot space reduction OR •Over 50% reduction in power consumption Global Refining Summit 2014 FACS - 31/3/2014
- 29. Original design based on standard air coolers; • Absorbed electrical power: 1143 kW • Plot space used: 4224 m² • Noise power emission: 101 dB(A) Case study 1 – High efficiency cooling Global Refining Summit 2014 FACS - 31/3/2014
- 30. Improved design based on high efficiency air coolers (with Whizz-Wheel® fans); Old New • Absorbed electrical power: 1143 kW 528 kW • Plot space used: 4224m² 2974 m² • Noise power emission: 101 dB(A) 94 dB(A) Case study 1 – High efficieny cooling Global Refining Summit 2014 FACS - 31/3/2014
- 31. Benefits; • Noise reduction: 7 dB(A) • Size reduction: 1250 m² = 29% • Power consump. red.: 615 kW = 53% • Opex savings: € 492.000,- / yr Figure 3: comparative Figure 2: high efficiency designFigure 1: standard design Case study 1 – High efficiency cooling Global Refining Summit 2014 FACS - 31/3/2014
- 32. Global Refining Summit 2014 FACS - 31/3/2014 VS
- 33. Increasing output • 50% less kW • 35% more cooling air • 10-15% more production • € 700 million gas production • € 70 million additional • Debottlenecking investment: € 0,5 million Global Refining Summit 2014 FACS - 31/3/2014
- 34. Increasing output Restrictions: • Maximum noise level • Production capacity down to 60% Results: • Elimination of all noise issues • Production up to 100% Bonus: • 56% savings in energy consumption Global Refining Summit 2014 FACS - 31/3/2014
- 35. Increasing output Restrictions: • Lower noise level or plant shut down! Results: • 20 fans installed • Elimination of all noise issues Bonus: • 56% savings in energy consumption Global Refining Summit 2014 FACS - 31/3/2014
- 36. High pressure compact cooling & maintenance Global Refining Summit 2014 FACS - 31/3/2014
- 37. Case study 2 – High pressure compact cooling Situation: Conventional high pressure S&T HEX at a refinery Global Refining Summit 2014 FACS - 31/3/2014
- 38. Original design based on conventional D-type high pressure shell & tube heat exchangers; Global Refining Summit 2014 FACS - 31/3/2014 • Design pressure 450 bar tubeside • Design pressure 350 bar shell side Case study 2 – High pressure compact cooling
- 39. New design based on compact header® high pressure shell & tube heat exchangers; Global Refining Summit 2014 FACS - 31/3/2014 • Design pressure 450 bar tubeside • Design pressure 350 bar shell side Case study 2 – High pressure compact cooling
- 40. • Up to 60% weight reduction • Reduced plot space • Much higher allowable temperature gradients • High pressure is no issue up to 1000 bar • Easy maintenance Global Refining Summit 2014 FACS - 31/3/2014 Case study 2 – High pressure compact cooling
- 41. Global Refining Summit 2014 FACS - 31/3/2014 Plugs Maintenance
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- 43. Global Refining Summit 2014 FACS - 31/3/2014
- 44. Fouling prevention Global Refining Summit 2014 FACS - 31/3/2014
- 45. Case study 3 – Fouling prevention Situation: Fouling inside thermosyphon reboiler tubes in crude stabilization unit in Abqaiq Source: http://www.ortloff.com/sulfur-recovery/modified-claus-process-with-tailgas-cleanup/ Global Refining Summit 2014 FACS - 31/3/2014
- 46. Original design based on thermosyphon reboiler; Case study 3 – Fouling prevention Shell side: steam • Inlet temp: 157°C • Outlet temp: 87°C Tube side: Crude oil (Arabian light) •Inlet temp: 70°C •Outlet temp: 85°C Heat transfer surface: 6000m2 Maintenance: •Cleaning of tubes: 1-2 months •Retubing: 2 years Source: http://upload.wikimedia.org/wikipedia/commons/5/57/Thermosyphon_Reboiler.png Global Refining Summit 2014 FACS - 31/3/2014
- 47. Case study 3 – Fouling prevention Alternative design based on Klarex® shell & tube heat exchangers; Global Refining Summit 2014 FACS - 31/3/2014 Original Alternative Shell side fluid: steam • Inlet temp: 157°C • Outlet temp: 87°C Tube side: Crude oil (Arabian light) •Inlet temp: 70°C •Outlet temp: 85°C Heat transfer surface: 6000m2 4600m2 Maintenance: •Cleaning of tubes: 1-2 months 2-3 years •Retubing: 2 years 2 years
- 48. • Fluidized (vertically entrained) cleaning particles inside the tubes • This prevents deposition of wall- fouling compounds (turbulence) • Heat transfer enhancement due to change from laminar flow pattern into turbulent flow • Smaller heat transfer surface required • Continuous operation Case study 3 – Fouling prevention
- 49. Case study 3 – Fouling prevention Global Refining Summit 2014 Benefits: • Heat transfer surface reduction: 1.400 m2 = 34% • Saving in Opex: • Maintenance = € 84.000,- x 40 (reboiler) = € 3.4 million/yr • Capex: For new plant - 1 klarex instead of 2 reboilers • 1 reboiler € 850.000,- x 40 reboilers = € 34 million • 1 klarex € 950.000,- x 20 klarex heat exchangers = € 19 million 15 million less Capex and 3.4 million less Opex every year. FACS - 31/3/2014
- 50. Situation: Shell side fouling conventional naphta exchanger in the recovery process in Abqaiq Global Refining Summit 2014 FACS - 31/3/2014 Case study 3 – Fouling prevention
- 51. Case study 3 – Fouling prevention Original design based on conventional naphta exchanger; Parameters naphta exchanger: • Tube side: lean oil • Shell side: rich oil Maintenance: •Cleaning: every 2-3 months •Retubing: every year •Costs: € 30.000,- •Total costs in 1 years: € 165.000,- Global Refining Summit 2014 FACS - 31/3/2014
- 52. Case study 3 – Fouling prevention Alternative design based on Twist-Flex-Baffle ® exchanger; Parameters Twist-Flex-Baffle® exchanger: • Tube side: lean oil • Shell side: rich oil Maintenance: •Cleaning: every 2 years •Retubing: every year Benefits: •Improved heat transfer: > 10% •Reduced pressure loss: > 10% Global Refining Summit 2014 FACS - 31/3/2014
- 53. Flare gas recovery Flare gas compression with smart-compact Radiax ®compressor: • Several hundreds of millions m3 of flare gas wasted • Gas at atmospheric pressure • Compress to 20-80 Bar Global Refining Summit 2014 FACS - 31/3/2014
- 54. Flare gas recovery Flare gas compression with smart-compact Radiax ®compressor: Global Refining Summit 2014 FACS - 31/3/2014
- 55. Global Refining Summit 2014 FACS - 31/3/2014
- 56. Global Refining Summit 2014 FACS - 31/3/2014
- 57. Flare gas recovery Flare gas compression with smart-compact Radiax ®compressor: • Several hundreds of millions of flare gas wasted • Gas at atmospheric pressure • Compress to 20-80 Bar Global Refining Summit 2014 FACS - 31/3/2014
- 58. Summary Yes, Bronswerk Heat Transfer can help your refinery become more sustainable and profitable at the same time: 1. Start at the source: size reduction of process equipment during design Global Refining Summit 2014 FACS - 31/3/2014 Klarex® 34% in heat transfer surface Twist-Flex-Baffle® 10% improved heat transfer High efficiency air coolers with Whizz-Wheels® up to 30% in plot space area Flexplate® additional 25-30% in plot space Radiax® Compressor/Turbine up to 95% in space requirement
- 59. Summary 2. During operation; reduction of power consumption Global Refining Summit 2014 FACS - 31/3/2014 High efficiency air coolers with Whizz-wheels® Power consumption reduction up to 50% Radiax® Compressor/Turbine Energy recovery: € 7,5 mill a year Without additional investment
- 60. Summary 3. Maintenance; limitation of production losses by fouling reduction in Heat Exchangers Global Refining Summit 2014 FACS - 31/3/2014 Klarex® OPEX savings of € 3,4 million a year Twist-Flex-Baffle® OPEX savings of € 165.000,- a year Compact Header® HEX Easy one-man-maintenance
- 61. Thank you for your attention. Questions please Global Refining Summit 2014 FACS - 31/3/2014
- 62. How to contact us: www.bronswerk.com facebook.com/bronswerk Linkedin.com/company/bronswerk-heat-transfer twitter.com/bronswerk Global Refining Summit 2014 FACS - 31/3/2014 And come visit our booth in the central hall
Notas do Editor
- The refining market is a market characterised with depreciating profit margins, debilitating regulations and increased competition, emerging environmental restrictions and declining crude quality. Winners in this market will be those that deliver value-added operations and or/ are aggressive in reducing costs.
- So how can Bronswerk help in this challenging markets? We provide significant cost saving strategies with the help of innovative process equipment.
- Therefore after the short introduction to the company I’ll take you through 3 area’s for improvement wé’ve identified. we will focus on three case studies that target these central themes: Therefore case studies on……. And a future perspective on ……
- We provide solutions for challenges in heat transfer and fluid-flow systems. For every kind of heat transfer problem.
- 2 divisions One operational and one focused on knowlegde and know-how
- Our markets - We provide products and solutions for these markets, and in everything we do we have a special focus on sustainability - well grounded in our DNA. Additionally we have a S&M department.
- Where it is blue, we’ve supplied equipment.
- Clients
- We have really smart engineers constantly looking for solutions in heat transfer and they use these programs that allow calculation of all the standard cases. But for non-standard cases we have an additional trick up our sleeves: CFD and Hysys. And because we want to find a solution for everything the know-how of the application of these programs are our biggest help and asset!
- Standard: Codes If those do not provide answers or we want more, we can run a FEM analyse.
- And with 70 years of experience in designing and manufacturing all kinds of heat transfer equipment – we’ve gained a lot of knowlegde about the processes they are part of. So we also use computer aided design for the process design and constructions in order to realize process optimization.
- Example of our equipment; reformer feed/effluent HE or Texas Tower.
- All kinds of (exotic) materials and design codes, such as this: 2,1/4 cr steel effluent heat exchanger
- Including everything such as pipes, instruments, pumps, etc/ With a focus on: Cost of ownership Sustainability Powerplant Eemhaven – the box in the forefront
- Air cooled cooler on platform
- Constantly working on: product development searching for better: system solutions and incorporating or even developing:new technology. New technologies such as: Compact Header Radiax Whizz-wheel fans A couple of images to get an idea of these innovations. But they will be dealt with in detail in the case studies.
- Compact header titanium
- Specially developed welding techniques for compact header
- Both a pump and a compressor, flexible range, unique in the world. The Radiax is efficient at both low and high Revolutions Per Minute (RPM), while normal a conventional machine is only efficient one 1 working point. This means that instead of one efficient working point, the Radiax has a efficient working range! This is because there is no pump in the world capable of combining High Volume/High Flow at the same time and the Radiax compressor is capable of doing so.
- One of the most revolutionary and successful developments which we have introduced into the market – the whizz-wheel. – an axial fan for Air-Cooled Coolers This fan in combination with the equipment/system in which it is applied, saves over 50% in energy use compared to the closest alternative. In total more than 100 of these installations have been designed and delivered world-wide so far in the last couple of years. All of them have realized energy savings of around 60%. We guarantee 50% but most of the time measure 60%. Additionally they are very quiet – the noise level has been reduced from the level of a petrol engine car and an electrical car passing you by (5-6 dBa compared to the most silent alternative fan available in the market). In the case studies I will explain to you what this development can mean for you. The worldwide energy consumption for ventilation and cooling is estimated at 25-30%. If all of you would use this whizz-wheel fan system, ranging from big to small applications, 1 out of 6 power plants would be redundant.
- As mentioned before we have identified a couple of central themes of where you can increase cost effectiveness and increase your profit: Plant maintenance Increasing capacity of existing equipment Energy efficiency We see three possible area’s where improvements can be made!
- Now that we’ve identified the three area’s for improvements. Let’s look at solutions.
- We will show you case studies of our solutions that can be applied for: - Fouling problems, or improvement of heat transfer, debottlenecking, high pressure compact cooling and easier maintenance.
- Cooling in refineries: how is it done now? Air-cooled coolers Remember the whizz-wheel?
- Most striking differences compared to conventional fan: Substantially more blades, smaller hub, blades are connected with tipring. Installation of Whizz-wheels at onshore gas plant Borsig.
- Electrical power for de fans More than 4000 m2
- Electrical power voor de fans
- So let’s look at what this case study can mean for you! These benefits could be yours! Large energy companies worldwide calculate their investments with an energyprice of 0,1 € / KWh over 10 jaar. Resulting in an OPEX saving of €492000,- per year and in 10 years this means almost half a miljoen. This also means savings on maintenance, less cables, less fans, less E and I so also capex reduction.
- In the future even more compact cooling Conventional finned tubes Combination of the Whizz-Wheel and the flex-plate presents a much better match for optimum heat transfer qualities of air cooled coolers. Additional 25-30 % plot space reduction
- But let’s go back to the whizz-wheel. This fan consumes over 50% less energy compared to conventional fans and additionally is very quiet! As we’ve just seen in the previous case study. Off course it is possible for you to use these efficient fans to realise the most sustainable and energy-conscious cooling. But our experience is that with new-builds, the only factor that is of real importance is the lowest price possible to realise the installation. Exploitation costs are costs that are not for the responsibility of the contractor but solely fall under the responsibility of the end –customer. And this is exactly where we see great possibilities for these end-customers. The substantial efficiency of these whizz-wheel fans, makes them highly suitable for debottlenecking. Because existing coolers can be refitted where the fan and plenum are replaced with whizz-wheel systems and with the same amount of energy 35% more cooling air can be produced (without interfering with noise restrictions) and without expanding the current electricity grid, and cabling, the existing coolers can increase their cooling! Depending on the ambient temperatures in the cooling situation, the cooling and/or production can be increased with maximum 35%! But the rule of thumb is that 35% more cooling air delivers 10-15% more production. Return on investment can be expressed in months. An example: In The Northern part of the Netherlands, conventional coolers are cooling natural gas with ambient air. This plant produces for approximately €700 milj in gas per year. More production was not possible because of noise restrictions. Refit with whizz-wheels would increase their gas production by approximately 10%, resulting in an additional sales of €70 milj a year. The additional investment needed for this refitting is maximally 0.5 million euro. You do the Math!! Let’s show you some examples of companies that have gone before you.
- The red one – Waste to Eenergy – Eon - Germany: Restrictions – maximum allowed noise level impact on production capacity, decreased to 60%. Result: Noise level no issue anymore and production is up to 100%. Additional bonus: 56% savings in energy-consumption.
- The blue one –Bayern Oil - Germany Restriction - noise: they had to decrease the noise level (which they were unable to do so because of the conventional fans) or close down the plant. Result: 20 fans of 65 in total have been installed already, one can not hear these fans within the noise contours of the plant Additional bonus: 56% savings in energy-consumption – this has lead them to ask whether they can increase their production. The additional investment needed for new e-motors is 40.000 euro – ROI of this ………. months.
- But we can do more with cooling. In this case High pressure compact cooling and maintenance.
- In this case refinery
- Gaseous mixture. The inlet velocity was too high at the nozzle, as a result very high level of erosion at the inlet. Additionally stress occurred due to high temperature gradients. Therefore frequent gas leakage over the header gasket They even required an extraction hood for removal of the gas leakage and save operating conditions! We presented an alternative solution.
- We also made a design based on the same process conditions but now fully based on new HE technology called the compact header HE. The compact header is in most cases a good alternative for d-type heat exchangers because:
- Some details on the possibilities of the compact header: Weight reduction means less money spend on material costs. Advantages CH: And with high pressure you can run out of options But with the compact header high pressure is not an issue op to 1000 bar – 1200 bar Maintenance on refinery is risky and costly The Compact Header® in terms of maintenance means: you need less people, less heavy tools and less space required, less costs, less risks and more cost efficient
- But in this case the main important difference with the conventional d-type hex is: The compact Header doesn’t have a header gasket, therefor ……. No leakage. This means it performs well under high pressure without leakage. And the Compact header is not prone to warping due to high temperature gradients. And in terms of maintenance we call this a One man maintenance application: Leakage detection is always a critical point. However the compact header is designed with maintenance in mind and each tube-tubesheet connection is easily accessible. Plugs are easy. And what is the secret behind this?
- This technique is not new to us. In Air cooled coolers we have already for decades been supplying gas coolers for high pressure applications, high pressure air cooled coolers with forged blocks. As you can see in this image. We have simply applied this technique to S&T heat exchangers within high pressure applications.
- movie
- Abqaiq – Saudi Aramaco – Worlds biggest desulphurisation plant. Taking sulphur out of crude oil. We will focus on the stabilizing process, all of the lightest extremely flammable fractions are being removed, to guarantee the safety of the process, the plant and the product. Arabian light with 350-600 parts of hydrogen sulphide per million (ppm) is fed to stabilizer columns and flows downward in the column over a series of trays. Oil from the bottom tray enters reboilers where it is heated by steam. The heated oil returns to the compartment in the base of the column, where bottom pumps deliver the sweetened crude to storage tanks or pumps stations or pipelines. Internal fouling heat exchangers – by products oil production
- Oil from the bottom tray enters reboilers, placed in sets of 2, where it is heated by steam. The crude oil comes in with 70 degrees and goes out with 85 degrees, the steam goes in with 157 and goes out with 87. Resulting in a heat transfer surface of 6000 m2. Nr of reboilers in the plant are more than 40. Maintenance costs alone are already 84000 euro per reboiler resulting in 3,4 million euro in costs per year. Let alone the energy losses.
- At the bottom of the main stream, small metal particles are injected/taken. These entrained particles cause a very high degree of turbulence, which hinders the fouling to set ate the surface. At the top of the heat exchanger the particles are ejected from and collected to be recycled again to the bottom of the heat exchanger, the loop is complete. Up to 30% better heat transfer And more importantly it results in: Because of more stable process And therefore more stable end-product
- Image of demonstration model with Perspex tubes so you can see the flow and the particles. Normally these are of course….metal tubes. Stiring the pan.
- So let’s look at what this case study can mean for you! These benefits could be yours! Savings: Costs per reboiler: € 84.000,- Total costs (40 reboilers): € 3,4 million Maintenance costs of 3,4 million per year. For new plant: Saving in Capex: 1 klarex instead of 2 reboilers: Costs for 1 reboiler 850.000,- * 40 reboilers = 34 million euro Costs for 1 klarex 95.000,- * 20 klarex heat exchangers = 619 million euro ` Let alone costs for retubing!
- Shell-side The recovery process upgrades the quality of the recovered product and hence it increases the price of a barrel.
- Fouling occurs shell side, so severe that tubes need cleaning and retubing. Costs of shutting down the recovery plus unit costs 30.000,- a day. Cleaning costs in 1 year: 165.000 euro Plus costs for retubing
- Fouling prevention with a newly developed baffle-technology. We have a broad experience with manufacturing the EM-Baffle-technology, a cooperation with Shell. We continue to explore more advanced baffle-technologies; the next generation. Such a development is particularly aimed at improved production techniques, greater design flexibility in terms of pipe diameters, materials, fluids in order to better hydraulic, fouling and thermal performance. This T-F-Baffle generates significantly improved heat transfer, more than 10 % better. Reduced pressure loss, more than 10%. This all depends on the medium as you might understand……. Taking fluid viscosities into account……..
- As a bonus I promised to share with you a future perspective on Flaregas recovery: Radiax compressor /turbine: Throughout the world hundreds of millions of flaregas m3 are wasted. This is gas at approximately atmospheric pressure. If you want to use this gas, you can choose to collect this gas in storage tanks. Or you can choose to transport it through pipelines. In both cases you need to compress the gas to 20-80 bars. If you think about compression, in principal you can choose from 2 types of compressors: A piston compressor. (Bicycle tyre pump.) You can get a considerable pressure increase, however you need to pump a lot. Lot’s of pressure – little volume. The axial compressor of a jet engine: This compressor provides a lot of volume, but the pressure increase is little. Until now, there was no machine available that is capable of both increasing to high pressure and large flows. So to compress flaregas in the dessert for instance, you would need enormous piston compressors. And you would need a lot of them. So you would have to start filling the dessert with compressors.
- The radiax compressor can deal with both high flow and high pressure. At this very moment we are building a Radiax compressor/turbine unit, that is capable of transforming the expansion energy of a gas reduction station into electrical energy. For instance in the wintertime , the gas from the pipelines, needs to be reduced from 80 bars to 20 bars before it enters the gas turbine. With the reduction of the gas pressure, via reductions valves, the available energy in the gas gets lost. With the help of the highly efficient Bronswerk Radiax here acting as a turbine, this energy can be won back and be delivered to the electricity grid as usable electricity. But if the pressure in the pipelines is too low, for instance as the result of very high usage of the gas – and dropped down to a level of 10 bar – with the help of the Radiax here acting as a compressor this pressure can be raised efficiently to 20 bars, which is the required gas pressure level for the gas turbine. Here you see the difference in installations.
- A conventional installation, the size of a footbalfield
- And a new compact unit with the size of a couple of containers, that regains net energy of approximately 7,5 million euro a year. This unique installation is being build at true scale at the moment and will be operational in the 2nd half of 2014.
- You may well understand that this Radiax compressor is ultimately suitable to compress flaregas. However we have not yet started this since we first want to find a good partner for this. This is because compression of this dirty gas will have many sorts of other by-products as a result next to the usable gas (dependant on the composition of the gas). Especially for the treatment, cq draining, cq using of these by-products resulting from the gas compression, we are looking for a professional partner. We are already in the middle of exploratory talks but haven’t yet reached to the point of final choice. You may think of companies like the big oil operators. This has been a lot of info in a very short time. So allow me to summarize the major take aways.
- When I started this presentation I told you about three area’s for improvement in the refineries. The start, during operation and maintenance. Here’s how we can help you to become sustainable and profitable at the same time.
- Come and find us at our booth.