A major Sibur project to upgrade and expand output PET intermediate terephthalic acid (PTA) in southern Russia has taken a new step forward with the arrival of key equipment on site.
Work at the group’s Polief Blagoveshchensk PET production site in southern Russia’s semi autonomous republic of Bashkortostan, currently involves the construction and installation of large scale plant.
This includes the new gas catalytic oxidiser, power supply facilities such as a transformer substation and power distribution unit and the additional 3,200m3 storage tank for paraxylene used for PTA production.
Also underway is construction of building extensions to accommodate some new modern equipment on site. The bulk of new equipment is scheduled to be delivered by the end of this year, the group said.
The catalytic oxidiser will replace the previously used furnace for waste gas thermal treatment, providing a more advanced and efficient technology for flue gas treatment.
Construction of the oxidiser and the upgrade of all gas emissions treatment systems are expected to help cut the facility’s atmospheric emissions in half.
Progress in the project has continued alongside the continuing operation of the existing plant as there was no need to shut down PTA production during the upgrade. Upgrading work will affect 11 of the site’s current buildings.
The project, launched last December (2017), will see PTA capacity grow to 350,000 tpa and also improve production efficiency and environmental safety. Work, already around 36% complete, is due to be finished in 2019, Sibur confirmed.
Currently, Polief Blagoveshchensk site can turn out up to 272,000tpa of terephthalic acid and PET plant capacity stands at 219,000tpa which was up by 3.9% since 2016, according to the Russian petchems and plastics giant.
An improvement in productivity was at the heart of the PET plant’s increased output during the past year. As a result, production rose by an average of 150 tonnes per month, Sibur reported.
Sibur pointed out that the Blagoveshchensk PTA expansion and production upgrade will help to partly substitute current imports of the intermediate which is undersupplied in Russia.