Alma Petroli, one of Italy's main bitumen producers, has shut its 550,000t/yr refinery in Ravenna, northeast Italy, because of an unexpected problem, halting bitumen production.
Market participants said an issue with the refinery's crude distillation unit had caused the bitumen output halt, hitting production and supply of all grades.
The likely duration of the shutdown is not yet known, although Italian market participants said Alma Petroli does not have high levels of bitumen storage capacity at Ravenna.
Alma Petroli company officials declined to comment on the refinery's operational status.
The firm has in recent years pushed up Ravenna's technical capacity for all oil products to 550,000 t/yr. Bitumen typically comprises of around 70pc of its total production, with the rest mainly comprised of middle distillates and small volumes of virgin naphtha.
The refinery receives bitumen-rich Italian and regional crudes centered around the Adriatic. It is specifically designed to produce distilled bitumen in a straight-run refining process fed by asphaltene and naphthenic rich crude oils, according to the company.

