We executed a lump-sum contract for engineering, procurement, construction and project management on the FCC plant addition project at the Kralupy Refinery in the Czech Republic.

The FCC plant included a new integrated resid conversion complex being added to the existing Ceska Kralupy Refinery. This resid conversion complex was based on an upgraded UOP Combustor-Style FCC reactor-regenerator, able to effectively charge and convert a low-sulfur resid mix of medium heaviness. Safety studies were performed for the Kralupy and Litvinov refineries.

The core FCC reactor-regenerator is supported by a collection of carefully integrated units and systems:

• FCC main fractionator, integrated heavy FCC gasoline desulfurizer reactor train and FCC gasoline merox (two-stage extractive concept)

• FCC gas concentration plant

• Dedicated amine system (using DEA amine) - dedicated sour water stripper system

• High purity propylene plant (single MD tray tower and heat pump) - Olefinic C3 and C4 LPG Merox (extractive type)

• HHP steam for export and letdown to HP steam system for "self-powering” of key blowers/compressors

• Upstream vacuum distillation unit to provide flexibility in controlling qualities of the resid cat feed composite

• DCS control system

The capacity of the FCC unit was 3,800 tonnes per day, and the capacity of the vacuum unit, 2,000 tonnes per day.