Cool Sorption vapour recovery systems from Aker Solutions The vapour recovery specialists

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1 part of Aker Cool Sorption vapour recovery systems from Aker Solutions The vapour recovery specialists

2 World-class vapour recovery technology Why recover vapours? The three main reasons for recovering vapours: Drastically reduce emission of environmentally hazardous substances Increase safety and mitigate health risks associated with the distribution of gasoline or crude oil Recover valuable energy resources

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4 4 Vapour recovery systems The vapour recovery specialists Since its founding in 1982, Aker Solutions subsidiary Cool Sorption has focused exclusively on VOC emission abatement technology and has developed into a leading player in the business. Aker Solutions is a global centre of excellence for recovery of environmentally hazardous Volatile Organic Compounds (VOC). We supply Vapour Recovery Units (VRU) for recovery of gasoline, crude oil and other chemical vapours, on-shore as well as off-shore. With a track-record of more than one quarter of a century and with hundreds of VRUs in operation around the world, Cool Sorption is a well-established name amongst major oil companies. Our VRUs conform to the prevailing legislative requirements and standards in the European Union, the United States and elsewhere. Additionally, we offer assistance in the development of existing installations with respect to vapour emission control.

5 5 Vapour recovery systems Return on investment The economic motivation for vapour recovery is that gasoline vapours represent a significant quantity of valuable product which, unless recovered, will be lost to atmosphere. A typical gasoline terminal has a recovery potential of 1,500 litres for every 1,000 m 3 of transferred product. Return on investment depends on whether the recovered product is taxed or not. If taxed, the practice by many EU authorities is to refund the tax in order to avoid double taxation. This tax refund makes vapour recovery an even better investment. In fact, it is not unusual for a VRU to reach break-even in less than one year. Meeting the strictest standards Legislation enacted in the United States and the European Union has set definitive limits on the emissions of VOC associated with the loading and transfer of gasoline. Moreover, products such as crude oil, benzene and other chemicals are increasingly subject to legislation regarding VOC emissions. Unless otherwise specified, all our VRUs for gasoline services have a guaranteed maximum HC emission of 10 g/m 3. These VRUs can also be made to conform to the stricter German and Danish regulations of maximum 150 mg/m 3 excluding methane. Our VRUs may even be fitted with a second stage system, reducing emission levels to as low as 50mg/m 3 including methane. Example of payback time for a VRU with and without tax refund. With tax refund W/o tax refund

6 6 Vapour recovery systems The carbon bed adsorption technology In recent decades, recovery by means of activated carbon adsorption has become established as the prevailing technology and today, vapour recovery is almost synonymous with the carbon bed adsorption technology. The Carbon Vacuum-regenerated Adsorption process (CVA) This highly efficient and reliable process is the most economical recovery technology available, both with regard to capital investment, installation costs and operating costs. Adsorption of hydrocarbon molecules on the activated carbon inside one of the beds of a Vapour Recovery Unit. Applications Truck and/or rail car loading Balanced vapour systems Tank filling Marine loading systems Shuttle tanker/fpso systems Activated carbon is a very porous material with an enormous surface area. Seven grammes have an active surface the size of an entire football stadium.

7 7 Vapour recovery systems The process explained Vapours are collected from the emission source and the flow is routed through one of the two beds filled with activated carbon (AC filter) The hydrocarbon components in the vapours are adsorbed on the large surface area of the carbon, and the clean air is vented to the atmosphere During regeneration, the stream of highly concentrated hydrocarbons is directed to an absorber column, where a counter flow of fresh absorbent liquid (typically gasoline) absorbs the hydrocarbon components from the vapour stream The absorbent liquid and newly absorbed hydrocarbon components are continuously recycled to the storage tank Before the on-line filter reaches saturation, the flow of incoming vapours is redirected to the other, clean filter, and the first filter is then regenerated by means of vacuum > Schematic of the CVA process In this example, a dry vacuum pump is used. < The carbon beds of the Vapour Recovery Unit are seen on the left. The absorber column on the right.

8 Our highly skilled employees design, manufacture and supply VRUs that comply with EU and US standards or other legislative requirements. We use the latest technology, know-how and developments to create solutions that protect the environment from VOC emissions.

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10 10 Vapour recovery systems VRU safety Since a VRU usually handles an ignitable mixture of air and hydrocarbons, safety is paramount in all aspects of operation. Aker Solutions VRUs are designed and built with full attention to all aspects of operating safety. Safety features of our VRUs include the following: Use of mineral-based activated carbon with a high degree of mechanical and thermal stability. Design of vessels and piping to withstand higher pressures. Advanced control system monitoring all important operating parameters, with automatic shut-down of the unit in case of malfunction. Fail-safe operation in case of power failure, loss of instrument air or other unit shut-down.

11 11 Vapour recovery systems VRU condition monitoring system Our units are equipped with an advanced Programmable Logic Controller (PLC), a bus communication between I/O station and PLC as well as a PC-based, user-friendly Human Machine Interface (HMI). This condition monitoring system continuously keeps track of key process parameters and the operation of the unit. Also included are features such as event and alarm log settings and a record of long-term development. The system enables operational adjustments, accurate service diagnostics and remote supervision. VRU availability Availability is a measure of a unit s operational dependability. This is considered our ultimate quality parameter. Our VRUs can be supplied with a feature measuring availability as a percentage. The average availability of Aker Solutions VRUs is above 98%. We ensure high availability by using a simple, well-proven design and robust components with a high degree of reliability as well as easy access to spare parts. Availability is further increased by our control system recording and logging a large number of key process parameters. All VRUs can be examined and diagnosed remotely via a regular phone connection. Typically, the correct spare parts can be delivered to site during the first service visit. > Our VRU condition monitoring system. PC-based access and control anywhere in the world.

12 12 Vapour recovery systems Pump technology Aker Solutions offers both dry and liquid ring vacuum pumps for vapour recovery systems. Dry vacuum pump The dry vacuum pump is relatively new to the market, but has rapidly become well-established as the preferred technology in an increasing number of applications. Liquid ring vacuum pump The liquid ring vacuum pump technology has been used extensively in vapour recovery systems and remains the preferred choice in many cases. Liquid ring vacuum pump technology is available in a wider range of capacities, is very robust, of relatively simple construction and inexpensive in cost-tocapacity comparisons. This pump technology is well suited for, and now widely used in, fuel distribution terminals throughout the world. Advantages of the dry vacuum pump technology over conventional liquid ring vacuum pumps include the elimination of the glycol sealing fluid and associated process equipment in the sealing fluid loop, reduced maintenance costs, lower power consumption and wider application potential. > A dry vacuum pump installed on a gasoline VRU >> A liquid ring vacuum pump installed on a crude oil, ship-based VRU

13 13 Vapour recovery systems Crude oil vapour recovery Some of the largest single sources of VOC emissions originate from the loading of crude oil and condensate. Depending on the properties of the crude oil and the loading rate, typical VOC emissions are in the order of 2 kg vapours per tonne of loaded oil. In recent years, Aker Solutions has delivered a substantial number of Vapour Recovery Units for maritime VOC recovery applications in offshore facilities and on-shore crude oil terminals. Most recently, we have supplied the world s largest VRU (2008) to Statoil in Mongstad for recovering vapours originating from the ship loading of crude oil. This unit is designed to handle a continuous vapour flow rate of 36,000 m 3 /hr. These emissions occur when crude oil is transferred, whether off-shore at the oil field or on-shore at the terminal. < The world s largest Vapour Recovery Unit (2008) at the Mongstad oil terminal, Norway. Throughput is 36,000 m 3 /hour > Shuttle tanker with VRU (seen on the right) for crude oil vapour recovery.

14 14 Vapour recovery systems After sales service Aker Solutions offers a wide range of extensive, world wide service agreements for all types of VRUs. Emphasis is put on preventive maintenance. We follow each VRU s life cycle in order to provide the best possible service and maintenance based on our world wide experience. The cornerstone of our after sales service is the VRU condition monitoring and control system. Our team of service engineers has extensive expertise in start-up, commissioning, capacity, load testing and continuous troubleshooting. A service agreement is made to suit the needs of each individual customer. Best-in-class service and maintenance on all VRUs, whether from Aker Solutions or from other vendors.

15 15 Vapour recovery systems Strong local presence Aker Solutions maintains a strong local presence in order to accommodate local languages, needs and cultures. Many years of experience and good relations with our clients have shown us the value of maintaining a strong post-project relationship. We always aim to be the market leader in service and maintenance of Vapour Recovery Units. Workshop in Thailand Our Thai subsidiary Aker Cool Sorption Siam is rapidly expanding and has full production, sales and service facilities in Rayong, 180 km South East of Bangkok. This location is ideal for cost-effective sourcing as well as easy access to the entire South East Asian region, a booming market for environmental technology. >> A newly built VRU from our Thai subsidiary, Aker Cool Sorption Siam. A world wide network We have subsidiaries in Thailand, and China as well as a joint-venture company with a local partner in South Africa. In the Aker Solutions Russia office, we have our own vapour recovery specialist staff. Furthermore, we have representatives in more than 15 countries. > One of our engineers working with people from Petronas and Titan at the Petronas Prai Depot VRU, Malaysia.

16 part of Aker The vapour recovery specialists Denmark main office Aker Cool Sorption A/S Smedeland 6, DK-2600 Glostrup, Denmark Phone: Fax: Thailand subsidiary Aker Cool Sorption Siam Ltd. 7/1 Radbumrung Rd., Soi 4, T. Houypong, A. Muang-Rayong, Rayong 21150, Thailand Phone1: +66 (0) to 928 Phone2: +66 (0) to 371 Fax: +66 (0) China subsidiary Aker Cool Sorption (Beijing) Technology Ltd. A 22 Dong Si Shi Tiao, B-1523, Xin Nan Cang Tower, Dongcheng District, Beijing , China Phone: Fax: South Africa associate LAS Cool Sorption (Pty) Ltd P.O. Box 6115, Dunswart 1508, South Africa Phone: +27 (0) Fax: +27 (0) Russia associate Aker Engineering & Technology 40 Mosfilmovskaya, office 5-6 Moscow Russia Phone: Fax: For a complete list of representatives, please visit our main website: