Oil & Gas Innovation OGI Winter 2018 Digital Version - Page 9

cleaning represents a significant HSE and commercial risk for any tank owner, using an automated system ensures a huge decrease in all risk categories. Elimination of VOC emission, waste minimization, oil recovery maximization, fully compliant EX-zone rated equipment designed for the purpose, confined space entry minimization, elimination of exposure to hazardous material, elimination of fire and explosion risks - just to name a few. • Automatic tank cleaning systems reduce tank cleaning time, and are typically 3 to 8 times faster than manual tank cleaning operations. As such, the tank is brought back into operation quicker, reducing the need for additional tank capacity. • Automatic tank cleaning systems provide high hydrocarbon recovery rates of the oil entrapped in the sludge, (typically more than 95% of the hydrocarbons entrapped in the sludge can be recovered) whilst sludge from manual cleaning op erations is often treated as waste to be disposed of. As such, the disposal costs in using automatic tank cleaning are much lower and the recovered hydrocarbons do represent a significant commercial value. • Using automatic tank cleaning systems means the user will be able to circulate fluid through the process, use a wide range of chemistry and use different viscosities, densities and temperatures of fluid. Thus altering the chemistry of the fluid to suit the type of product which is cleaned or the type of solids that remain in the tank. Having that flexibility to choose the cleaning fluid, increases the efficiency and quality of the cleaning. The major benefit for a tank operator is having the tank in operation faster avoiding investment in further storage capacity. OGI: Could you go into detail about the different products you have available for the market? Hansen: Oreco strives to maintain the position as the leading technology supplier of no-man entry tank cleaning systems. As the only supplier of no-man entry tank cleaning technology, Oreco has been referenced in the Best Available Techniques (BAT) Reference Document for the Refining of Mineral Oil and Gas Industrial Emissions Directive 2010/75/ EU (Integrated Pollution Prevention and Control). Oreco markets different main tank cleaning solutions, and several supporting technologies under the following brands: BLABO®, MoClean®, MoClean®-ATS and SLOPO®. With the span of main tank cleaning solutions and supporting technologies, Oreco offers to engineer and tailor solutions to a high degree of client customization. This enables the client to choose a solution covering either white oil tanks (MoClean®), black oil tanks (BLABO®) or even both white and black oil tanks (MoClean®-ATS). The tank cleaning systems can be used for a wide range of tank types (e.g. fixed roof, internal and external floating roof, single and double deck roofs). Finally, the chosen solution can be integrated with a separation solution (SLOPO®) if required. OGI: One of the primary issues with “man- entry” tank cleaning operations is safety. Could you explain to our readers in detail the Søren Hansen, Chief Sales & Marketing Officer, Oreco A/S. different reasons why an automated system is much safer? Hansen: Regarding manual tank cleaning practices, it is obvious that despite the level of protection a human has at his disposal, the mere act of having to enter and perform cleaning activities inside an oil tank poses a high risk. This is due to the likelihood of human error or failure of safety devices. According to international institutes 80% of all accidents occur due to human error. Manual removal of sludge is a tedious and dangerous process, which inevitably increases risks both to personnel and property. In short, every single time personnel enters an oil tank they place their health in the line of fire, and significantly increase the potential risks of accidents. An alarming fact is that in many cases, manual cleaning makes use of personnel with the lowest level of qualifications. This applies not only in terms of knowledge of tank operation and maintenance, but also for safety procedures. This maximizes risk due to ignorant or irresponsible behavior of workers on-site. The global market for no-man entry automatic tank cleaning technology is seeing an increased focus on safety, for instance in the IECEx Directive, which covers all the electrical equipment installed in the system, and is securing the fact that the equipment fulfills the requirements for use in all areas with potentially explosive hazards. The IECEx Directive aims to eliminate the ignition risk in explosive areas arising from electrical equipment. As a consequence of this, Oreco enters a close dialogue with all relevant stakeholders to comply with all necessary requirements for the process modules, to be safe for operation in various hazard zones (e.g. Ex-Zone 0, Ex-Zone 1, Ex-Zone 2, Safe Zone), as per the IECEx Directive. A no-man entry automatic tank cleaning system is a combination of individual process modules with different functionalities which are integrated to form a complete system. The ability to choose a design for each of the individual process modules, means that the operator will have a highly versatile and flexible tank cleaning system, while achieving compliance with specific safety requirements and an ability to operate the tank cleaning system under various scenarios. A view inside a Oreco BLABO® Automated No-man entry tank cleaning system. 9