JSC Acron is to de-bottleneck urea solidification processes at its Veliky Novgorod facility in Russia with the installation of a Rotoform HS pastillation line delivering a throughput capacity of up to 40,000 MTPY. The order, scheduled for delivery in March 2009, is for the high speed version of Sandvik Process Systems’ flagship Rotoform pastillation process, plus the facilities necessary to support an additional two Rotoform HS lines in the future and increase total capacity to 120,000MTPY. This includes a common cooling water and exhaust air system, together with the electrical instrumentation and controls necessary to provide fully automatic operation. Sandvik is also providing supervision of erection, start-up and training. The Rotoform HS system was initially developed to provide high capacity sulphur pastillation at oil and gas refineries. Thirteen lines are now in operation with another four in production, and such has been its operational success – including 8400hrs/yr productivity – that other markets are now taking interest: this will be the first commercial scale Rotoform HS installed for urea pastillation. The system, which can be used to produce either fertilizer urea or technical urea without any modification, enables pastilles to be produced in 2mm, 3mm or 4mm diameters. Multiple lines can be run in parallel to deliver high throughput capacities and the flexibility to switch to partial operation without halting production.
