3 November 2019

The propylene recovery unit (PRU) is located at the site of a hydrocarbon processing enterprise and is intended for return to the production cycle more than 95% of propylene and about 80% of nitrogen, which remain in the off-gas after the main production.



Under the decision of LLC SIBUR Tobolsk, the PRU will undergo a comprehensive reconstruction and technical re-equipment. This task is being solved by ENERGAS Companies Group.

As part of project, the experts of the ServicENERGAS LLC (part of ENERGAS Group) conducted an audit of the input and output gas pipelines, a technical audit of the compressor, process and electrical equipment of the PRU.

Based on the results of the inspection, the scope of the work to be done was determined, defect sheets were drawn up, recommendations were prepared for replacing faulty and worn out assemblies and elements. A plan for carrying out local restoration works, major repair and upgrade of the unit, as well as a schedule of pre-start activities which include adjustment, its own and integrated testing of the PRU, were drawn up and agreed with the customer.



REFERENCE:

At the Tobolsk industrial site of PJSC SIBUR Holding the production of monomers (formerly Tobolsk-Neftekhim) and polymers (formerly Tobolsk-polymer), the capacities of the Tobolsk CHPP and the largest petrochemical complex in Russia ZapSibNeftekhim, was integrated into a single cluster.

SIBUR Tobolsk is a hydrocarbon processing enterprise. The productive capacities of the company include: a central gas fractionation unit for processing a broad fraction of light hydrocarbons with a capacity of 8 million tons per year; production of monomers for the production of liquefied hydrocarbon gases, butadiene, isobutylene, and methyl tert-butyl ether; production of polymers for the fabrication of polypropylene with a capacity of 500 thousand tons per year; power generation with a capacity of 665 MW for electricity and 2,585 MW for heat.

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