High-availability UPS systems for the harsh conditions of the petrochemical industry in Siberia
The former capital of Siberia, Tobolsk, is located east of the Urals, about 2500 kilometres from Moscow. A Russian chemicals group operates several plants there, which focus on the production of monomers and polymers. Recently a new petrochemical complex has been integrated into the existing production facilities at the Tobolsk location. It is considered the largest and most modern petrochemical plant in Russia.
It is used for the extensive conversion of refined oil and gas products from the region of Western Siberia. This also includes the processing of associated petroleum gas (APG), which occurs as a by-product of oil production. Hitherto, this had to be burnt off in the oil fields. The new petrochemical plant makes it possible to utilise up to 22.4 billion cubic metres of APG in processing. This avoids incineration in the field and reduces pollutant emissions by 40 million tonnes per year.
This modern complex includes:
- A pyrolysis plant with a capacity of 1.5 million tonnes of ethylene, 500,000 tonnes of propylene and 240,000 tonnes of various by-products, such as butadiene, butene-1, MTBE and pyrobenzene per year
- Two plants with 4 production lines producing different grades of polyethylene, with a total capacity of 1.5 million tonnes per year
- A chain polymerisation system for polypropylene with an annual capacity of 500,000 tonnes
The chemical company relies not only on the most innovative technologies in the area of hydrocarbon conversion, but also in the selection of products, components and services necessary for the construction and subsequent operation of the new refinery.
This is to ensure the reliability, safety and efficiency of the plant. The criteria for selecting suppliers and project partners were correspondingly high. In total, more than 100 companies from 35 regions of Russia participated in the implementation of the project.
Secure power supply
Wherever electrical power must be available to provide protection against a temporary power outage or grid failures, an uninterruptible power supply (UPS) compliant with the 9000-65S-0007 standard was required. These UPS systems are designed for the continuous supply of performance-critical consumers, control systems and production lines. Therefore, highest availability and cost-effective operation were important criteria in the selection of the UPS systems.
BENNING offers systems that meet these requirements with the product lines ENERTRONIC modular and ENERTRONIC I. BENNING Power Electronics was contracted to supply and install more than 20 UPS systems of the ENERTRONIC I (20 kW to 400 kW) and ENERTRONIC modular (20 kW to 40 kW) series.
To maximise their availability, the UPS systems are designed to be parallel redundant (N + 1). They also have a galvanic isolation at the input of the bypass network.
In the meantime, commissioning of the UPS systems on site has been completed, thus ensuring the reliable supply of electrical energy to all critical consumers of the pyrolysis plant. In the future, if higher performance of the electrical power supply systems is needed, for example due to expanding production, the modular UPS architecture enables a simple pay-as-you-grow extension.
The excellent collaboration as well as the quality and efficiency of the UPS systems installed, demonstrate once again, that BENNING can produce optimum product solutions for highly demanding processcritical applications of the petrochemical industry. Offering the best features, therefore, to contribute to the success of similar projects in the future.