TEHRAN -- The first section of Iran's tallest petrochemical tower, which is 28 meters high and weighs 497 tons, will be installed on Wednesday, according to Public Relations Department at National Petrochemical Company (NPC).

The department said the second section, standing 50 meters high and weighing 500 tons, and the third section with a weight of 490 tons and height of 50 meters will be also installed on Wednesday.

The tower will separate xylenes -- the feedstock for paraxylene, which is applied for pet production.